ProductWiki

Hifonics Brutus BRZ1200.1D

Tue, 10 Aug 2010 17:55:27 -0400

The Hifonics Brutus BRZ1200.1D is one of five Hifonics Brutus Super D-Class Mono amplifiers. In particular, the BRZ1200.1D is the base unit, as it provides a maximum 1200 output @ 1 Ohm, 900 output at 2 Ohms, and 450 output at 4 Ohms. The 4- or 2-Ohm options offer a tighter bass response. Regardless, all five units in the Super D-Class series feature a new vertical fin heat-sink design for enhanced heat dissipation, which in turn means less impact on a car’s battery system. Featured also is variable low pass, subsonic filter, phase shift and level control. Additional features include a bass remote (included), integrated systems diagnostics technology / monitoring, and a balanced line input for MX accessories and line drivers.

Features

Super D-Class Series
Mono Amplifier
1/2/4-Ohm Options
1200W Max Power
Vertical Fin Heat-Sink Design
Enhanced Heat Dissipation
Improved Cost Savings (Energy)
Variable Low Pass
Subsonic Filter
Phase Shift
Level Control
Bass EQ w/45Hz Bass Boost
Balanced Line Input
Bass Remote
Integrated Diagnostics
Illuminated Hifonics Logo

Lanzar OPTI700X2

Tue, 10 May 2011 13:44:26 -0400

The Lanzar OPTI700X2 is a 2800W 2-channel class A/B Optidrive competition MOSFET car audio amplifier. The Lanzar OPTI700X2 promises power and quality with a 2800 watt x 2 max power system. Its low pass filter controls and a variable bass boost delivers advanced sound quality while line outs for left and right channels and a soft turn on/off offers state of the art signal quality. The advanced boost circuit and electronic crossover network delivers a sound of rich bass, and textured layers. The Lanzar OPTI700X2 is protected by LED indicators and advanced circuitry. The unit includes a remote subwoofer bass control and high/low pass crossover controls with gold plated RCA inputs. The Lanzar OPTI700X2 is approximately 29 pounds and it's dimensions are 28 x 15.5. x 6.8 inches.

Features

Powerful
A/B Optidrive
2800 Watt X 2 Max Power
Bass Boost Circuit
Soft Turn On/Off
Bridgeable at 4 Ohms
Double Sided Eproxy PCB Circuit Board
Subwoofer Remote Level Control
Power and Protection LED Indicators
29 Pounds

Power Acoustik BAMF1200/4

Tue, 10 May 2011 14:58:15 -0400

This is a 4 channel Amp, (4 x 100 watts) capable of bridging, or even working as a 5 channel Amp, with a sub woofer tapping into either the front or rear channels. THD is rated at .02% on the box. It has low and high passover capabilities for front and rear chanels and the owners manual is easily accessible online if you want to check it out before buying.

Kenwood KAC-959

Wed, 16 Feb 2011 11:31:16 -0500

The Kenwood KAC-959 is a 5-Channel Amplifier featuring a Maximum Bridged Power Output of 800-Watts. It has gold-plated speaker connectors and gold-plated RCA audio inputs. Its power supply is stable at 2 ohms and its design features four large secondary capacitors. It is capable of 3 to 5 channels of amplification.

Kenwood KAC-X40

Wed, 16 Feb 2011 11:27:02 -0500

The Kenwood KAC-X40 is a Four-Channel Power Amplifier designed for full-range or component systems. Its primary distinguishing design feature is K-STAT technology which reduces the unit’s thermal resistance without sacrificing power, reducing distortion and maximizing sound quality. It has RMS power of 70-watts (x 4) at 4 ohms and 100-watts (x 4) at 2 ohms, with a maximum power of 800-watts. It has an optional bass remote and a glass epoxy PCB board construction.

Kenwood XR-1S

Wed, 16 Feb 2011 11:26:48 -0500

The Kenwood XR-1S is part of a series of eXcelon Reference Fit amplifiers designed for automobile audiophiles in search of powerful audio systems with streamlined, straightforward design. It is a Class D amplifier, designed to be flexible and efficient. They are designed for easy installation. The XR-1S has a power rating of 600-watts (RMS) at 4 ohms and 700-watts RMS at 2 ohms. It features a Dual Power Supply and Dual Sigma Drive.

Kenwood XR-4S

Wed, 16 Feb 2011 11:26:15 -0500

The XR-4S eXcelon Reference Fit Four-Channel Digital Power Amplifier aims to combine straightforward design and strength. The amplifier is designed for convenient installation and features a bi-amp connection for 2-way multi-connection. Additionally, it has a dual power supply. The Class D amplifier is rated at 300-watts RMS at 4 ohms (bridged).

Kenwood XR-5S

Wed, 16 Feb 2011 11:25:30 -0500

The Kenwood XR-5S is a ultra-compact, five-channel digital amplifier capable of delivering 80 watts RMS at 4 ohms with another 350 watts RMS x1. What differentiates the XR-5S from previous generation models is its compact design (7-9/16 x 9-1/4 x 2-3/16 inches) and lightweight frame (6.1 lbs), making it one of the smallest Class D, 5-ch amps on the market. Featured is a four-layer circuit board with surface mount device (SMD) technology, a new thermal management system, and a fan-cooled heat sink. All of them work together to allow the XR-5S amplifier output much more power than is typically expected from such a small amp.

Features

Kenwood Excelon “Refernce Fit” Lineup
Five-Channel Digital Amplifier
Lightweight/Compact
Class D
2/4 Ohm Operation
80W/Channel
350W Sub Channel
Four-Layer Circuit Board
SMD Technology
Thermal Management System
Fan-Cooled Heat Sink
Variable Low-Pass Filter (50Hz-200Hz)
Variable High-Pass Filter (50Hz-200Hz)
2-Year Warranty

Kenwood KAC-9104D

Wed, 16 Feb 2011 11:24:15 -0500

The Kenwood KAC-9104D is a Class D Monoblock Amplifier with an RMS Power Rating of 500-watts per channel at 4 ohms and a maximum power output of 1800-watts. The unit has a self-activating fan mechanism to reduce operating temperature to avoid interruption of operation. Its design features further protection against short circuiting and thermal overload. It has a MOSFET power supply and preamp gold-plated RCA outputs. It is CEA-2006 compliant.

Rockford Fosgate T1500-1bdCP

Tue, 24 Aug 2010 18:33:49 -0400

The Rockford Fosgate T1500-1bdCP is an amplifier built for medium to high powered subwoofers. This is the same as the Rockford Fosgate T1000-1bdCP, but delivers 1500 Watts of power for subwoofer systems that are powerful enough to be competition-grade. Class-bd amplifiers operate more efficiently than the standard A/B class, achieving 75-80% efficiency ratings. The Constant Power system works to deliver up to 25% more power, creating even louder audio than a similar system at the same power output could manage. Bass and Infrasonic filter controls work with the crossover control to adjust the overall sound quality, ensuring that it sounds right for the specific vehicle installation. RCA pass-thru and standard speaker outputs are both available to maximize compatibility.

Features

Class-bd Constant Power Mono Amplifier
Channels: 1
Total Power: 1500 Watts
Low-Pass (LP) crossover control
Bass tone and Infrasonic filter controls
Frequency Response: 20Hz to 250Hz +/-0.5dB
24dB/octave crossover
4 Gauge power/ground terminals
Audiophile grade speaker connections
Infrasonic filter
MOSFET output stage
MOSFET power supply
RCA pass-thru

JBL MS-8

Sat, 03 Apr 2010 17:54:39 -0400

The MS-8 is a mid-priced car amplifier from JBL. The MS-8 boasts easy set-up so that you can get the settings you want out of your car audio on the small display without taking too much time (the setup CD will show you how). JBL has emphasized the fact that through the use of an equalization algorithm and Lexicon's Logic 7 soundstage, the MS-8 gives every listener in the car an equally high-quality audio experience. The integrated digital processor ensures that no matter the quality of the audio source, it will come out high-quality through the MS-8. The MS-8 can be connected to any headunit, so that any newer car with headunit controls can have its sound upgraded without having to get into the guts.

Features

Integrated digital processor
Pre-amp/amp
Small display
Wireless remote control
Binaural microphone
Setup CD
8 speaker level inputs
8 line level inputs
Auxiliary input
Fully configurable electronic crossover
31-band EQ
USB port for software updates
Lexicon Logic 7 soundstage

Pyramid PB1617X

Wed, 16 Feb 2011 11:16:04 -0500

The Pyramid PB1617X is a Bridgeable 4-channel Car Amplification System featuring a Tri-Way Configuration which allows 2, 3, or 4 channels. Its total output is 4-channels at 75-watts each, with a Total System Output of 2000-watts, at 4 ohms. Its design features a MOSFET Pulse Width Modulated Power Supply and a Built-In Variable Subwoofer Crossover. The unit has RCA Low Level Inputs and is designed to be protected from overheating, overload and shortcircuiting.

Alpine PDX-M12

Wed, 16 Feb 2011 11:10:44 -0500

The Alpine PDX-M12 is part of the company’s PDX Series of amplifiers re-designed to for maximum performance, highest possible sound fidelity and consistency. The PDX Series received a 2010 CES (Consumer Electronics Show) Innovations honors award in the In-Vehicle Audio. The M12 has a power rating of 1200-watts and is designed to be easily stacked and installed with a clean and convenient look.

Sony Xplod XM-GTX1852

Tue, 10 Aug 2010 17:55:29 -0400

The Xplod XM-GTX1852 is an entry-level, two channel car amplifier from Sony. This amp features a variable cross-over, multiple channel configurations and single-side electrical connections for added versatility. This product can operate in a variety of different power outputs, depending on the ohms setting selected. On the low side, users can get 185 watts of power over two speakers (RMS) at 4 ohms. On the high end of the spectrum, users can get 500 watts over two speakers at just 2 ohms. A single speaker mode also exists, where the Xplod XM-GTX1852 can output 1000 watts of power.

Features

Two channel Xplod amp
Modern cosmetics
Installation flexibility
Variable cross-over
Multiple channel configurations
Single-side electrical connections

Power

185 watts x 2 RMS (4 ohms)
200 watts x 2 RMS (2 ohms)
380 watts x 2 maximum power (4 ohms)
400 watts x 1 RMS (4 ohms)
500 watts x 2 maximum power (2 ohms)
1000 watts x 1 maximum power (4 ohms)

Rockford Fosgate P700-1bd

Tue, 24 Aug 2010 18:33:48 -0400

The Rockford Fosgate P700-1bd is a mono amplifier designed for medium to high-powered subwoofers in car audio systems. This is identical to the Rockford Fosgate P500-1bd and Rockford Fosgate P1000-1bd, but rests in the middle of the power range at 700 Watts in order to accommodate users who have medium powered subwoofers and may be looking for an upgrade later. Variable crossover and built-in Punch EQ allow the bass to be tuned to settings that work in the specific vehicle it is being mounted in. Pass-Thru RCA jacks provide flexibility with a variety of subwoofer types, and the differential inputs work to eliminate interference noise from input cabling. Class-bd standards are also used for high efficiency

Features

Class-bd Mono Amplifier
Channels: 1
Total Power: 700 Watts
Bass Punch EQ2
1 RCA pair input, 1 RCA pair output
Frequency Response: 20Hz to 250Hz +/- 1.0dB
8 AWG to 18 AWG speaker wire gauge
12dB/octave crossover
4 Gauge power/ground terminals
Audiophile grade speaker connections
Infrasonic filter
RCA pass-thru
Differential inputs
MOSFET output stage
MOSFET power supply
Top Mounted LED Indicators - Power, Thermal, Protect

Kenwood KAC-8105D

Tue, 10 Aug 2010 17:55:29 -0400

The KAC-8105D is a class D mono car amplifier from Kenwood. Compared to the KAC-9105D, this product is a step-down with 800 watts less power. The KAC-8105D amp is capable of producing a total of 1000 watts, and has a built-in filter to improve subwoofer performance. At 4 ohms, the KAC-8105D can output 300 watts of CEA rated power. At 2 ohms, the unit is capable of producing 500 watts of power. With its integrated variable low-pass filter, noise is reduced automatically for improved sound. Bass boost control is also built-in, allowing users to control the bass level from 0-18 dB. Preamp level inputs and outputs are supported along with signal sensing turn-on for efficient interoperability. The Kenwood KAC-8105D weighs 5.9 lbs, or 2.7 kg.

Features

Class D mono power amplifier
Small footprint
1000 watts max power
Infrasonic filter for subwoofers (15/25 Hz)
CEA Rated: 300W (1.0% THD+N) (4Ohm/1Ch)
CEA Rated: 500W (1.0% THD+N) (2Ohm/1Ch)
Variable low-pass filter (50-200 Hz at -24 dB per octave)
Bass Boost Control 0-18 dB at 40 Hz)
Infrasonic filter (15/25 Hz, 18 dB/octave)
Speaker-level inputs with signal sensing turn-on
Preamp-level inputs and outputs

Rockford Fosgate P1000-1bd

Tue, 24 Aug 2010 18:33:48 -0400

The Rockford Fosgate P1000-1bd is a Class-bd Mono Amplifier for subwoofers in car audio systems. Capable of a full 1000 Watts of power output and a 1-ohm capability, this dedicated low frequency amplifier can drive a pair of 4-ohm DVC subwoofers or four separate 2-ohm DVC subwoofers. As a Class-bd amplifier it has a 75-80% efficiency ratings, making it much more energy efficient than traditional A/B class amplifiers. High quality differential inputs work to eliminate noise picked up by input cables, eliminating a possible source of interference. Full RCA passthrough is possible, but for those using other kinds of speaker connections wire gauges from 8 to 18 AWG are supported.

Features

Mono Amplifier
Channels: 1
Total Power: 1000 Watts
Bass Punch EQ2
1 RCA pair input, 1 RCA pair output
Frequency Response: 20Hz to 250Hz +/- 1.0dB
8 AWG to 18 AWG speaker wire gauge
12dB/octave crossover
4 Gauge power/ground terminals
Audiophile grade speaker connections
Infrasonic filter: Selectable 12dB/Octave, -3dB @ 28Hz
MOSFET output stage
MOSFET power supply
Top Mounted LED Indicators - Power, Thermal, Protect

Rockford Fosgate T400-4

Tue, 24 Aug 2010 18:33:50 -0400

The Rockford Fosgate T400-4 is an amplifier with two front and two rear audio outputs. While somewhat similar to the Rockford Fosgate T400-2, the addition of an extra RCA input pair and two more outputs lend a number of new possible applications for this amp. This 4 output design makes the amplifier appropriate for front/rear fading stereo systems, although it can also be used for dedicated amplification of front midlevels and rear subwoofers. The compact size has been preserved, and Dynamic Thermal Management helps the unit run cool enough to be installed under a seat. High-pass and low-pass crossover controls enable fine tuning of the audio quality, and treble and bass can be independently set for the front and rear audio.

Features

4 channels - 2 front, 2 rear
400 Watts total power
Crossover Controls: High-Pass (HP), Low-Pass (LP)
Front/Rear Tone Controls: Treble, Bass
Class A/B
24dB/octave crossover
4 Gauge power/ground terminals
Audiophile grade speaker connections
MOSFET output stage
MOSFET power supply
RCA pass-thru
Compact design, Dynamic Thermal Management

Rockford Fosgate T2500-1bdCP

Tue, 24 Aug 2010 18:33:49 -0400

The Rockford Fosgate T2500-1bdCP is a subwoofer amplifier for car audio systems. This unit is based on the original Rockford Fosgate T2500-1bd, but uses a Constant Power configuration to deliver 25% more power through all impedances for a cleaner and louder sound. The power output is rated at 2500 Watts and can drive an array of woofers in 1-ohm mode, and PowerSync mode allows two amplifiers to be connected in tandem for a total of 5000 Watts of output. The MasterSync setting allows one amp to control both units, enabling easier adjustment of the crossover control, as well as the bass tone EQ and Infrasonic filter. A number of LED indicators give quick feedback about the amplifier's status, including Power, Thermal, Protect, Output, and Battery levels.

Features

Class-bd Constant Power Mono Amplifier
Channels: 1
Total Power: 2500 Watts
PowerSync mode compatible with MasterSync
Low-Pass (LP) crossover control
Bass tone and Infrasonic filter controls
Frequency Response: 20Hz to 250Hz +/-0.5dB
24dB/octave crossover
4 Gauge power/ground terminals
Audiophile grade speaker connections
Infrasonic filter
MOSFET output stage
MOSFET power supply
RCA pass-thru
Visual Indicators: Power (Blue LED), Thermal (Red LED), Protect (Yellow LED), Output -00dB to +2dB @ 11 steps (Blue LEDs), Battery 9VDC to 16VDC @ 11 steps (Blue LEDs)

Rockford Fosgate P500-1bd

Tue, 24 Aug 2010 18:33:48 -0400

The Rockford Fosgate P500-1bd is a mono amplifier designed for high efficiency subwoofer support in a car audio system. This has the same features and design as the Rockford Fosgate P1000-1bd, but outputs at 500 Watts rather than 1000. Output is dedicated to the low frequency range of 20Hz to 250Hz, making the design specifically targeted to subwoofers and incompatible with any other kind of speaker. Class-bd amplifiers such as this one have a 75-80% efficiency rating, enabling more output than traditional A/B class amplifiers. A 1-ohm resistance capability enables the connection of two 4-ohm DVC subwoofers, or alternately an array of four separate 2-ohm DVC subwoofers. Both RCA outputs and 8 - 18 AWG wire connections are available for output, and differential inputs reduce noise picked up by the cabling as it travels to the amplifier.

Features

Mono Amplifier
Channels: 1
Total Power: 1000 Watts
Bass Punch EQ2
1 RCA pair input, 1 RCA pair output
Frequency Response: 20Hz to 250Hz +/- 1.0dB
8 AWG to 18 AWG speaker wire gauge
12dB/octave crossover
4 Gauge power/ground terminals
Audiophile grade speaker connections
Infrasonic filter: Selectable 12dB/Octave, -3dB @ 28Hz
MOSFET output stage
MOSFET power supply
Top Mounted LED Indicators - Power, Thermal, Protect

Rockford Fosgate T600-2

Tue, 24 Aug 2010 18:33:50 -0400

The Rockford Fosgate T600-2 is an all-purpose amplifier for car audio systems. This is the same amplifier as the Rockford Fosgate T400-2, but with a higher power output of 600 Watts for louder, clearer audio. The same compact design is used here with only a slightly wider footprint, and both woofers and tweeters can be used with this unit. One 2-Ohm DVC or two 4-Ohm DVC subwoofers can be used in the lower range, or upper range tweeters can also be used in conjunction with the built-in crossover. Controls for both the high-pass crossover and low-pass crossover are available for fine tuning, and equalization of the Treble and Bass is also built in. For quick setup an RCA pass-thru is included, although standard speaker outputs are also available. Input is run through Differential Inputs, eliminating noise that the cables can sometimes pick up.

Features

2 channels
600 Watts total power
Crossover Controls: High-Pass (HP), Low-Pass (LP)
Tone Controls: Treble, Bass
Class A/B
24dB/octave crossover
4 Gauge power/ground terminals
Audiophile grade speaker connections
MOSFET output stage
MOSFET power supply
RCA pass-thru

Rockford Fosgate T1000-1bdCP

Tue, 24 Aug 2010 18:33:49 -0400

The Rockford Fosgate T1000-1bdCP is an amplifier built for subwoofers in car audio systems. This is similar to the Rockford Fosgate T1000-1bd, but uses a Constant Power system that delivers up to 25% more power. This creates cleaner, louder audio. Crossover and Bass tone controls allow for the sound to be adjusted to resonate in the vehicle properly. An RCA pass-thru makes the system compatible with basic subwoofers, and alternate outputs are available for more advanced speakers. Class-bd efficiency enables more output with less power drawn and less heat, and the 4 Gauge power and ground terminals ensure safe operation.

Features

Class-bd Constant Power Mono Amplifier
Channels: 1
Total Power: 1000 Watts
Low-Pass (LP) and Infrasonic crossover controls
Bass tone control
Frequency Response: 20Hz to 250Hz +/-0.5dB
24dB/octave crossover
4 Gauge power/ground terminals
Audiophile grade speaker connections
Infrasonic filter
MOSFET output stage
MOSFET power supply
RCA pass-thru

Rockford Fosgate P400-1

Tue, 24 Aug 2010 18:33:47 -0400

The Rockford Fosgate P400-1 is a mono amplifier designed for medium to high-powered subwoofers. Capable of outputting 400 Watts of power, the amp can augment an existing system with powerful bass backup. Bass and Treble Punch EQ are available, and an optional remote allows them to be adjusted on the fly. A variable crossover is also used to enable precise tuning, and a 2-Ohm resistance allows for a more stable output that can be sent to up to four 4-Ohm DVC subwoofers. LED indicators on the top show Power, Thermal and Protect statuses, and the small size of the amp allows installation under a seat for easy access when needed.

Features

Mono Amplifier
Channels: 1
Total Power: 400 Watts
Bass and Treble Punch EQ
1 RCA pair input
Frequency Response: 20Hz to 20kHz
2-ohm capability
Small chassis design
12dB/octave crossover
4 Gauge power/ground terminals
Audiophile grade speaker connections
MOSFET output stage
MOSFET power supply
Top Mounted LED Indicators - Power, Thermal, Protect

Rockford Fosgate R300-4

Tue, 24 Aug 2010 18:33:47 -0400

The Rockford Fosgate R300-4 is a quad-channel, Class-A/B amplifier designed to power two full-range or component speakers in the front, and a 10” or 12” subwoofer in the back. It can output up to 75W per 4 channels, or 150W per 2 channels when bridged. Featured is a variable low-pass filter, selectable bass boost, and two sets of preamp inputs. Critics say the Rockford Fosgate R300-4 is an optimal choice for powering an entire audio system, so long as too many components aren’t strung together. Four midrange speakers or two midrange speakers and a subwoofer are recommended.

Features

Class-A/B Amplifier
Quad Channel Operation
50W RMS Power 4@4-Ohms
75W RMS 4@2-Ohms
150W RMS 2@4-Ohms Bridged
300W Total Power
20Hz-20kHz Frequency
Variable Low-Pass Filter
Variable Bass Boost
Wired Remote Punch Level Control
MOSFET Power/Output Stages
Preamp-Level Inputs & Outputs
10-Gauge Power & Ground Leads (Recommended)
1-Year Limited Warranty
CEA-2006 Compliant

Rockford Fosgate T500-1bdCP

Tue, 24 Aug 2010 18:33:49 -0400

The Rockford Fosgate T500-1bdCP is an amplifier built for bass support in car audio systems. This is based on the Rockford Fosgate T500-1bd, and has the same compact design that can be installed under a seat. The key difference is in the use of a Constant Power system which delivers up to 25% more power for a clearer, louder signal. While the small size and 500 Watts of power put it in a less powerful class than the Rockford Fosgate T1500-1bdCP, it can still drive two 4-Ohm DVC subwoofers. This is made possible in part by the Class-bd standards used, which increases the efficiency of the amplifier. Full RCA pass-thru makes setup with basic subwoofers quick and easy, and outputs for basic speaker wire connections are also available.

Features

Class-bd Constant Power Mono Amplifier
Channels: 1
Total Power: 500 Watts
Low-Pass (LP) crossover control
Bass tone and Infrasonic controls
Frequency Response: 20Hz to 250Hz +/-0.5dB
24dB/octave crossover
4 Gauge power/ground terminals
Audiophile grade speaker connections
Infrasonic filter
MOSFET output stage
MOSFET power supply
RCA pass-thru
Visual Indicators: Power, Thermal, Protect

Hifonics HFi1500D

Tue, 10 Aug 2010 17:55:28 -0400

The Hifonics HFi1500D is one of four Hifonics HF Series D-Class Mono amplifiers released as weaker counterparts to the Hifonics Brutus Super D-Class Mono series. It’s an upgrade from the HFi1000D in that it offers an improved maximum power output of 1500W at 1 Ohm, while offering its predecessor’s 1000W output at 2 Ohms—meaning a tighter bass response. Like its predecessor, the Hifonics HFi1500D hosts low distortion 4/2/1-Ohm output with variable low-pass, subsonic filters, integrated diagnostics, and a heat-dissipation heat-sink design. Also included are RCA inputs/outputs and an advanced equalizer with a 45Hz Bass Boost option.

Features

Hifonics HF Series
D-Class Mono Amplifier
1/2/4-Ohm Options
1500W @ 1 Ohm Max Power
1000W @ 2 Ohms (Tighter Bass)
Low Distortion
Variable Low-Pass
Subsonic Filter
Integrated Diagnostics
Enhanced Heat-Sink Design
Improved Heat Dissipation
Improved Cost Savings (Energy)
Advanced EQ System
Bass Boost
RCA Inputs/Outputs
Bass Remote
Illuminated Hifonics Logo

Alpine PDX-4.100

Tue, 04 Nov 2008 13:21:35 -0500

The Alpine PDX-4.100 is a 4/3/2 channel density digital amplifier that performs with 100 watts per 4 channels. The design is modern and stackable, meaning multiple ones (or others in the series) can be bought and stacked in the trunk to save space and deliver more than just one unit on its own. The PDX-4.100 offers features such as a 4-Layer glass epoxy PC board, a non-fading pre-amp RCA output, adjustable gain control, a subsonic (infrasonic) filter, STAR topology, protection circuits, a power/status LED, a low pass filter, and a feature not found in many other amplifiers: the same power output for 2Ω or 4Ω loads. All of these features rack up the price on the Alpine PDX series but promise better sound quality in return.

Features

100W x 4
Easy, flexible installation
60% smaller than previous models
Same power output for both 2Ω or 4Ω loads
Stackable with any model in series
10-1/8" Width, 7-9/16" Height, 2-7/16" Depth
4-Layer Glass Epoxy PC Board
RCA Output: Non-Fading Pre-Amp Output
Adjustable Gain Control

Hifonics HFi2000D

Tue, 10 Aug 2010 17:55:28 -0400

The Hifonics HFi2000D is one of four Hifonics HF Series D-Class Mono amplifiers released as weaker counterparts to the Hifonics Brutus Super D-Class Mono series. As a step up from its predecessors (the HFi1000D and HFi1500D), the Hifonics HFi2000D offers improved power output across all three Ohm settings—2000 at 1 Ohm, 1300 at 2 Ohms, and 650 at 4 Ohms. The result is louder, higher-quality bass with a tighter response. Though more powerful, the amplifier inherits its predecessors variable low pass, subsonic filters, integrated diagnostics, and a heat-dissipation heat-sink design. Also included are RCA inputs/outputs and an advanced equalizer with a 45Hz Bass Boost option.

Features

Hifonics HF Series
D-Class Mono Amplifier
1/2/4-Ohm Options
200W @ 1 Ohm Max Power
1300W @ 2 Ohms
Tight Bass
Low Distortion
Variable Low-Pass
Subsonic Filter
Integrated Diagnostics
Enhanced Heat-Sink Design
Improved Heat Dissipation
Improved Cost Savings (Energy)
Advanced EQ System
Bass Boost
RCA Inputs/Outputs
Bass Remote
Illuminated Hifonics Logo

Rockford Fosgate T600-4

Tue, 24 Aug 2010 18:33:50 -0400

The Rockford Fosgate T600-4 is a 4 channel amplifier designed to cover front and rear car audio outputs. While similar to the Rockford Fosgate T400-4, the power output has been increased to a total of 600 Watts. It can be used to have front midrange outputs and surround rear speakers, and a built-in crossover allows the rear channels to work with one or two separate subwoofers. The front and rear channels have independent high-pass and low-pass controls for fine tuning of the audio, and general tone controls are also available to get the right mix of Treble and Bass. The compact design allows installation of this unit under a car seat.

Features

2/4 channel switch
600 Watts total power
Front/Rear Crossover Controls: High-Pass (HP), Low-Pass (LP)
Front/Rear Tone Controls: Treble, Bass
Class A/B
24dB/octave crossover
4 Gauge power/ground terminals
Audiophile grade speaker connections
MOSFET output stage
MOSFET power supply
RCA pass-thru

Rockford Fosgate T400-2

Tue, 24 Aug 2010 18:33:50 -0400

The Rockford Fosgate T400-2 is a 2-channel amplifier for car audio systems. It features a compact design and a 400 Watt output, but is capable of running either one 2-Ohm DVC or two 4-Ohm DVC subwoofers. Equalization allows high frequency component speakers to be connected as well, making this a possible amplifier for the high-pass range. Crossover controls are available for both high-pass and low-pass audio, and Treble and Bass can both be adjusted to work with an individual vehicle's setup. Full RCA pass-thru makes this amplifier compatible with most speaker setups, and basic speaker cable outputs are also available.

Features

2 channels
400 Watts total power
Crossover Controls: High-Pass (HP), Low-Pass (LP)
Tone Controls: Treble, Bass
Class A/B
24dB/octave crossover
4 Gauge power/ground terminals
Audiophile grade speaker connections
MOSFET output stage
MOSFET power supply
RCA pass-thru

Rockford Fosgate R500-1

Tue, 24 Aug 2010 18:33:46 -0400

The Rockford Fosgate R500-1 is a single-channel, Class-A/B amplifier released as an upgrade from the R250-1. It provides a higher 500W (2-Ohm) power output, making it an optimum choice for a pair of 10” or 12” subwoofers. Plus it hosts a much wider 20-250Hz frequency range. Included is a Punch Level Control that corrects acoustic anomalies, insuring that bass is deep and highs/lows are crisp. Critics say that though the Rockford Fosgate R500-1 can be used with two speakers, it’s better employed with just one—especially for users seeking to reproduce room-shaking bass that’ll fill up an entire neighborhood.

Features

Class-A/B Amplifier
Single Channel Operation
350W RMS Power (4 Ohms)
500W Max (2 Ohms)
20Hz-250Hz Frequency
Variable Low-Pass Filter
Variable Bass Boost
Wired Remote Punch Level Control
MOSFET Power/Output Stages
Preamp-Level Inputs & Outputs
4-Gauge Power & Ground Leads (Recommended)
CEA-2006 Compliant

Rockford Fosgate P500-2

Tue, 24 Aug 2010 18:33:49 -0400

The Rockford Fosgate P500-2 is a middle-end car amplifier. It features dynamic thermal management, and DSM technology. When compared to another car amplifier by Rockford Fosgate, the P400-2, the P500-2 has the exact same features; the only difference between them is the P500-2 is more powerful, using a total of 500 watts, whereas the P400-2 can only use up to 400 watts. With more power, the P500-2 can play audio at a louder volume than the P400-2, and when combined with other features of the amp (such as DSM technology) the quality of the sound itself becomes superior to the P400-2, as more power is being outputted more efficiently. The dynamic thermal management system allows the amplifier to function to its maximum potential. It manages to do this by evenly distributing the excess heat of the amp across a heatsink that spans almost the entire motherboard. This removes heat more efficiently, and reduces distortion to provide clearer audio. The P500-2 also features DSM technology, which makes the circuits work more efficiently. It achieves this by taking advantage of it's 1% tight-tolerances, which decreases cross-talk from other discrete components, and lowering the operating temperature.

Features

Dynamic thermal management
DSM technology
500 watt power
Differential inputs
MEHSA3 technology
NOMAD technology
Punch EQ2 technology
Rockford Fosgate Avatar
TRANS-ana technology
MOSFET technology

Hifonics Brutus BRZ2400.1D

Tue, 10 Aug 2010 17:55:28 -0400

The Hifonics Brutus BRZ2400.1D is one of five Hifonics Brutus Super D-Class Mono amplifiers. It’s an upgrade from the BRZ2100.1D in that it offers improved power outputs of 2400W at 1 Ohm, 1700W at 2 Ohms, and 850W at 4 Ohms. It directly inherits Link & Sync Link capabilities from its predecessor, while maintaining all other features of its peers, including a balanced line input, a bass equalizer with boost options, and 2/4-Ohm power output options. Signature though is the new vertical fin heat-sink design for enhanced heat dissipation, which in turn means less impact on a car’s battery system. Additional features include a bass remote (included), integrated systems diagnostics technology / monitoring, and a balanced line input for MX accessories and line drivers.

Features

Super D-Class Series
Mono Amplifier
1/2/4-Ohm Options
2400W Max Power
Vertical Fin Heat-Sink Design
Enhanced Heat Dissipation
Improved Cost Savings (Energy)
Variable Low Pass
Subsonic Filter
Phase Shift
Level Control
Bass EQ w/45Hz Bass Boost
Balanced Line Input
Bass Remote
Integrated Diagnostics
Illuminated Hifonics Logo
Link & Sync Linking Capabilities

Kicker ZX300.1

Thu, 30 Oct 2008 15:03:22 -0400

The Kicker ZX300.1 amplifier is the weakest type in the Kicker ZX mono series. It is outfitted with differential RCA inputs which helps eliminate whines and trashy noise, improving the sound quality and the overall enjoyment of the music. The ZX mono-channel amplifier Kicker ZX300.1 has 300 watts protected by a heat sink. With 24dB/octave low pass electronic crossover, a 24dB/octave subsonic filter fixed at 25 hertz, and 18 decibels of boost centered at 40 hertz the Kicker ZX300.1 is an average part of the ZX series. Included is a remote bass control to make it easy to work with no matter where it is installed. The ZX mono amplifier series contains 300 watt amplifiers all the way up to 2,500 watts, a huge range of diversity giving the consumer the ability to choose exactly what they are looking for. With the ZX300.1 the consumer gets a lower power amplifier for a lower cost.

Features

Differential RCA inputs
Automatic turn-on modes
300 watts
18 decibels of boost
Remote bass control
24dB/octave subsonic filter
24dB/octave low pass electronic crossover
Automatic Turn-On modes: DC Offset, Audio Signal Sense, +- 12V (Remote)

Kicker DX1000.1

Fri, 08 Oct 2010 17:26:23 -0400

The Kicker DX1000.1 is a low-cost subwoofer amplifier for car audio or multimedia systems. This is a basic mono-channel bass amp, and is similar to the Kicker DX500.1 but with twice the power. A maximum of 1000 Watts of output can be sent to a 1 ohm resistance subwoofer, although this number is greatly reduced as resistances increase. Balanced differential inputs are used to keep the unit compatible with factory-installed radios, and to reduce noise for a cleaner signal. The system powers down until activated by one of 3 automatic turn-on modes, and can be directly controlled with a mountable remote.

Features

Power for any car audio or multimedia system
Mono-channel bass amp
Balanced differential inputs
3 automatic turn-on modes
+9dB (or 0dB) of boost centered at 40 hertz
18dB/octave, high-pass subsonic filter variable from 10 to 30 hertz
Mountable remote bass control
Additional 1-year extended warranty with the purchase of a qualifying KICKER install kit

Specifications

RMS Power, all channels driven @14.4 Volts, 4Ω mono, ≤ 1% THD+N: 280 Watts, @ 2Ω mono, ≤ 1% THD+N: 550 Watts, @ 1Ω mono, ≤ 1% THD+N: 1000
Dimensions (L x H x W): 10-3/8 x 2-3/16 x 8-5/16 in, 26.3 x 55 x 211 mm
Frequency Response, ± 1 db: 20Hz-200Hz
Signal-to-Noise Ratio: 95 dB, a weighted, re: rated power
Input Sensitivity: Low Level 125mV-5V, High Level 250mV-10V
Electronic Crossover: Variable Low-Pass, 50Hz-200Hz, 18dB/octave
Remote Bass Capable: Yes (included)
Subsonic Filter: Variable High-Pass, 10Hz-30Hz, 18dB/octave
Bass Boost: Selectable 0 or +9dB Bass Boost @ 40Hz
Fuse, ampere: 100
Power-Ground Wire, GA: 4
CEA-2006 (Watts) @ 4 ohms, 14.4Vdc, 1% THD: 280 x 1
CEA-2006 Signal to Noise Ratio (ref: 1W, A-weighted): 75dB

Hifonics HFi1000D

Tue, 10 Aug 2010 17:55:28 -0400

The Hifonics HFi1000D is one of four Hifonics HF Series D-Class Mono amplifiers released as weaker counterparts to the Hifonics Brutus Super D-Class Mono series.. As the base unit, the HFi1000D provides a maximum 1000W output @ 1 Ohm, 750W output at 2 Ohms, and 475W output at 4 Ohms. The amplifier and its HF Series peers are all low distortion 4/2/1-Ohm stable subwoofer amplifiers featuring variable low-pass, subsonic filters, integrated diagnostics, and a heat-dissipation heat-sink design. Additional features include a bass remote, RCA inputs & outputs, and an advanced equalizer with a 45Hz Bass Boost option.

Features

Hifonics HF Series
D-Class Mono Amplifier
1/2/4-Ohm Options
1000W Max Power
Low Distortion
Variable Low-Pass
Subsonic Filter
Integrated Diagnostics
Enhanced Heat-Sink Design
Improved Heat Dissipation
Improved Cost Savings (Energy)
Advanced EQ System
Bass Boost
RCA Inputs/Outputs
Bass Remote
Illuminated Hifonics Logo

Pioneer GM-6300F

Tue, 04 Nov 2008 00:05:51 -0500

The Pioneer GM-6300F is a four-channel bridgeable amplifier from the Pioneer GM series. An upgrade from the GM-4300F, the GM-6400F supports an increased maximum power (600w versus 400w). The GM-6400F, however, maintains the GM-4300’s frequency response (10Hz-50kHz), signal-to-noise ratio (>95dB), and total harmonic distortion (0.010%). The GM-6400 is essentially an exact duplicate of the GM-4300, except with an increased power output. In addition, the GM-6300F comes equipped with 4-channel crossovers that accurately route frequency signals, and speaker level inputs that allow the user to connect any OEM unit into the amplifier. Priced at $199.95, the GM-6300F is cited as a formidable component to the $159.95 GM-4300, and worthwhile for consumers seeking an extra ‘bang’ for the buck.

Features

Output Power (4 Ohm, <=1% THD): 40 Watts x 4
Output Power (4 Ohm Bridged, <=1% THD): 100 Watts x 2
Output Power (2 Ohm, <=1% THD): 50 Watts x 4
Signal to Noise (1 Watt into 4 Ohms): 80 dBA
Signal-to-Noise Ratio: >95dB
Peak Music Power: 400 Watts
Number of Channels: 4
Load Impedance Capability: 2~8 Ohm (Stereo), 4~8 Ohm (Bridged)
Continuous Power (4 ohm): 40W x 4
Continuous Power (2 ohm): 50W x 4
Continuous Power Bridged (4 ohm): 100W x 2
Frequency Response: 10Hz ~ 50kHz
Total Harmonic Distortion: 0.010%
Dimensions: 11-13/16" x 2-3/8" x 10-5/8"

Boss CX3500D

Tue, 10 Aug 2010 17:55:28 -0400

The Boss CX3500D is a class D monoblock car amplifier with remote subwoofer level control. Features include low level input and output with an input sensitivity selector switch. Variable gain control is also included, with a subsonic filter for enhanced audio quality. Sensitivity is rated at 100 dB, allowing for clear sound to resonate with the listener. Strapping is supported, meaning owners can use two amps together for additional power. LED lights are used for indicating power and protection, enabling a straightforward way for users to check the Boss CX3500D’s vital stats. A remote for controlling subwoofer levels is included in the box.

Features

Single class D monoblock power amplifier
100 dB sensitivity
Variable subsonic filter
Low level inputs/outputs
Variable gain control
Indicator LEDs
Variable crossover
Phase shift selector
Strapping capability
Remote control included
Power output: 1200w x 1 RMS, 2200w x 1 Max, 3500W x 1 Strapped

JL Audio 300/4v2

Fri, 31 Oct 2008 02:11:17 -0400

The JL Audio 300/4v2 is a class A/B four-channel full-range amplifier based on an Absolute Symmetry Class A/B circuit cited as delivering exceptional, natural sound with extremely low distortion. Much like its two-channel cousin, the 300/2v2, the 300/4v2 offers 300w (75w per channel, or 150w per bridged channel) of music power, a 5Hz-30kHz frequency response, and a dampening factor of >200 @ 4 ohm per ch. In addition, the 300/4v2 comes equipped with an Intelligent Power Supply system that helps maintain steady, consistent power while you drive. The Audio 300/4v2 is priced at $559.99, a whopping $160 over its predecessor, the 300/2v2, but a $140 savings over its cousin in the HD series, the 600w JL Audio HD600/4.

Features

Rated Power (4 Channel Mode): 75 W RMS x 4 @ 1.5 ohm-4 ohm (11V-14.5V)
Rated Power (Bridged to 2 Channel): 150 W RMS x 2 @ 3 ohm-8 ohm (11V-14.5V) THD at Rated Power: <0.03% @ 4 ohm per ch.
S/N Ratio: >108.5 dB below rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth)
Frequency Response: 5 Hz - 30 kHz (+0, -1dB)
Damping Factor: >200 @ 4 ohm per ch. / 50 Hz, >100 @ 2 ohm per ch. / 50 Hz
Slew Rate: ±25 V / µS @ 4 ohm per ch.
Left to Right Channel Separation: >75 dB @ 1 kHz
Input Range: Switchable from 200mV-2V RMS to 800mV-8V RMS
Dimensions: 13.40 in. x 9.25 in. x 2.36 in.

Kicker ZX1000.1

Thu, 30 Oct 2008 14:59:42 -0400

The Kicker ZX1000.1 amplifier is part of a full Kicker ZX series. It is outfitted with differential RCA inputs which helps eliminate whines and trashy noise, improving the sound quality and the overall enjoyment of the music. The ZX mono-channel amplifier Kicker ZX1000.1 has 1000 watts protected by a heat sink. With 24dB/octave low pass electronic crossover and a 24dB/octave subsonic filter fixed at 25 hertz, the Kicker ZX1000.1 is a powerful part of the ZX Mono-Channel amplifier series. 18 decibels of boost are centered at 40 hertz and controlled with a remote bass control.

Features

Differential RCA inputs
Automatic turn-on modes
1000 watts
18 decibels of boost
Remote bass control
24dB/octave subsonic filter
24dB/octave low pass electronic crossover
Automatic Turn-On modes: DC Offset, Audio Signal Sense, +- 12V (Remote)

Rockford Fosgate R1000-1D

Tue, 24 Aug 2010 18:33:47 -0400

The Rockford Fosgate R1000-1D is a single-channel, Class-D amplifier designed to give subwoofers the power to literally shake the ground. Designed especially for 4-Ohm or 2-Ohm DVC subwoofers, the amplifier can output over 1000W of energy via an ultra-wide 20Hz-130Hz frequency. Plus according to Rockford Fosage, the unit hosts a efficiency rating of 90%. Additional features include a 12dB/octave crossover network, MOSFET power supply, and RCA pass-thru. Users say the Rockford Fosgate R1000-1D is an optimal solution for consumers looking to setup a high-powered audio system.

Features

Class-D Amplifier
Single Channel Operation
1000W Maximum Power
500W RMS Power (4 Ohms)
1000W Max (2 Ohms)
20Hz-130Hz Frequency
Variable Low-Pass Filter
Variable Bass Boost
Wired Remote Punch Level Control
MOSFET Power/Output Stages
Preamp-Level Inputs & Outputs
4-Gauge Power & Ground Leads (Recommended)
CEA-2006 Compliant

Kenwood KAC-9105D

Tue, 10 Aug 2010 17:55:29 -0400

The KAC-9105D is a class D mono car amplifier from Kenwood. Compared to the KAC-8105D, this product is a step-up with an additional 800 watts of available power. The KAC-9105D amp is capable of outputting a total of 1800 watts, and has a built-in filter to improve subwoofer performance. At 4 ohms, the KAC-9105D can output 500 watts of power. At 2 ohms, the amp is capable of producing 900 watts. This amplifier also has a dual mono drive connection, meaning you can strap two KAC-9105Ds together to power a single subwoofer. Bass boost control is also built-in, allowing users to control bass levels from 0-18 dB. Preamp level inputs and outputs are supported along with signal sensing turn-on for efficient interoperability. The Kenwood KAC-9105D weighs 7.2 lbs, or 3.3 kg.

Features

1800 Watts Maximum Output Power with 30% Smaller Chassis Size
500 watts RMS x 1 at 4 ohms (900 watts x 1 at 2 ohms)
1-ohm stable (output regulated to 900 Watts)
Variable low-pass filter (50-200 Hz at -24 dB per octave)
Bass Boost Control (0-18 dB at 40 Hz)
Infrasonic filter (15/25 Hz, 18 dB/octave)
Class D design
Speaker-level inputs with signal sensing turn-on
Preamp-level inputs and outputs

Hifonics Brutus BRZ2100.1D

Tue, 10 Aug 2010 17:55:27 -0400

The Hifonics Brutus BRZ2100.1D is one of five Hifonics Brutus Super D-Class Mono amplifiers. As a grand step up from the two models before it (1200W, 1700W), the BRZ2100.1D not only offers an improved 2100W output at 1 Ohm, but it also incorporates Link & Sync Linking capabilities. Otherwise a duplicate, it took features a new vertical fin heat-sink design for enhanced heat dissipation, which in turn means less impact on a car’s battery system. Also included is a balanced line input, a bass equalizer with boost options, and 2/4-Ohm power output options. Additional features include a bass remote (included), integrated systems diagnostics technology / monitoring, and a balanced line input for MX accessories and line drivers.

Features

Super D-Class Series
Mono Amplifier
1/2/4-Ohm Options
2100W Max Power
Vertical Fin Heat-Sink Design
Enhanced Heat Dissipation
Improved Cost Savings (Energy)
Variable Low Pass
Subsonic Filter
Phase Shift
Level Control
Bass EQ w/45Hz Bass Boost
Balanced Line Input
Bass Remote
Integrated Diagnostics
Illuminated Hifonics Logo
Link & Sync Linking Capabilities

Hifonics Brutus BRZ1700.1D

Tue, 10 Aug 2010 17:55:27 -0400

The Hifonics Brutus BRZ1700.1D is one of five Hifonics Brutus Super D-Class Mono amplifiers. It builds from the BRZ1200.1D by incorporating an improved power output up to 1700W @ 1 Ohm, though 2 Ohm (1200W) and 4 Ohm (600W) options remain. This allows it to output louder, more room-shaking audio. Like its peers in the Super D-Class series, the amplifier features a new vertical fin heat-sink design for enhanced heat dissipation, which in turn means less impact on a car’s battery system. Additional features include a bass remote (included), integrated systems diagnostics technology / monitoring, and a balanced line input for MX accessories and line drivers.

Features

Super D-Class Series
Mono Amplifier
1/2/4-Ohm Options
1700W Max Power
Vertical Fin Heat-Sink Design
Enhanced Heat Dissipation
Improved Cost Savings (Energy)
Variable Low Pass
Subsonic Filter
Phase Shift
Level Control
Bass EQ w/45Hz Bass Boost
Balanced Line Input
Bass Remote
Integrated Diagnostics
Illuminated Hifonics Logo

Kicker ZX350.4

Sun, 02 Nov 2008 17:03:54 -0500

The Kicker ZX350.4 is on the lower end of the multi-channel series. ZX multi-channel amplifiers range from 50 watts x 4 channels all the way to 215 watts x 4. This gives the buyer a decent variety of power and price to choose from. The ZX350.4 is one of the weaker of these, putting out 90 watts per channel. The multi-channel series have features similar to the stereo series such as a 12dB/octave electronic crossover and a KICKEQ Boost of up to 18 decibels of bass centered at 40 hertz. The multi-channel series has some features the stereo series doesn't have, such as a fader dial which gives the consumer just that much more control over their sound system. The ZX350.4 does not include a remote bass control.

Features

No remote bass control
Power: 90 watts x 4
Dimensions: Length 13-1/2 in, Height 2-1/8 in, Depth 9-5/8
Active Crossover: 12dB/octave, fixed at 80Hz - selectable high, low or all pass
KICKEQ Boost
Differential RCA inputs
Automatic turn-on modes: +12 V(Remote), DC Offset, Audio (Signal Sense)
Lower size and price in the series

Kicker ZX2500.1

Thu, 30 Oct 2008 15:03:13 -0400

The Kicker ZX2500.1 amplifier is the most powerful type in the Kicker ZX mono series. It is outfitted with differential RCA inputs which helps eliminate whines and trashy noise, improving the sound quality and the overall enjoyment of the music. The ZX mono-channel amplifier Kicker ZX2500.1 has 2500 watts protected by a heat sink. With 24dB/octave low pass electronic crossover, a 24dB/octave subsonic filter fixed at 25 hertz, and 18 decibels of boost centered at 40 hertz the Kicker ZX2500.1 is a powerful part of the ZX series. Included is a remote bass control to make it easy to work with no matter where it is installed. The ZX mono amplifier series contains 300 watt amplifiers all the way up to 2,500 watts, a huge range of diversity giving the consumer the ability to choose exactly what they are looking for.

Features

Differential RCA inputs
Automatic turn-on modes
2500 watts
18 decibels of boost
Remote bass control
24dB/octave subsonic filter
24dB/octave low pass electronic crossover
Automatic Turn-On modes: DC Offset, Audio Signal Sense, +- 12V (Remote)

Kicker DX500.1

Fri, 08 Oct 2010 17:26:23 -0400

The Kicker DX500.1 is a subwoofer amplifier for general use in car audio or multimedia systems. This is similar to the Kicker DX1000.1, but outputs about half the power. Apart from that they are nearly identical, with the same connectors and case dimensions. Balanced differential inputs eliminate noise for a cleaner sound, and also work to make the amp more compatible with factory-installed stereo systems. A remote bass control is included for mounting, but the system will power itself down when not used and has 3 automatic turn-on modes.

Features

Power for any car audio or multimedia system
Mono-channel bass amp
Balanced differential inputs
3 automatic turn-on modes
+9dB (or 0dB) of boost centered at 40 hertz
18dB/octave, high-pass subsonic filter variable from 10 to 30 hertz
Mountable remote bass control
Additional 1-year extended warranty with the purchase of a qualifying KICKER install kit

Specifications

RMS Power, all channels driven @14.4 Volts, 4Ω mono, ≤ 1% THD+N: 140 Watts, @ 2Ω mono, ≤ 1% THD+N: 275 Watts, @ 1Ω mono, ≤ 1% THD+N: 500
Dimensions (L x H x W): 10-3/8 x 2-3/16 x 8-5/16 in, 26.3 x 55 x 211 mm
Frequency Response, ± 1 db: 20Hz-200Hz
Signal-to-Noise Ratio: 95 dB, a weighted, re: rated power
Input Sensitivity: Low Level 125mV-5V, High Level 250mV-10V
Electronic Crossover: Variable Low-Pass, 50Hz-200Hz, 18dB/octave
Remote Bass Capable: Yes (included)
Subsonic Filter: Variable High-Pass, 10Hz-30Hz, 18dB/octave
Bass Boost: Selectable 0 or +9dB Bass Boost @ 40Hz
Fuse, ampere: 60
Power-Ground Wire, GA: 4
CEA-2006 (Watts) @ 4 ohms, 14.4Vdc, 1% THD: 140 x 1
CEA-2006 Signal to Noise Ratio (ref: 1W, A-weighted): 75dB

Rockford Fosgate T1000-4

Tue, 24 Aug 2010 18:33:50 -0400

The Rockford Fosgate T1000-4 is a 4 channel amplifier for car audio systems. This is similar to the Rockford Fosgate T600-4, but is larger and has Blue LED signal meters to simulate VU needles. The 1000 Watts of total power are enough to drive a 2-ohm stereo speaker and 4-ohm woofer combinations, and the 2/4 channel switch allows the rear to run through a pair of woofers or just one. Audio fine tuning can be done through front and rear crossover controls in both the high-pass and low-pass ranges, and the Treble and Bass can be adjusted individually as well. This unit has a full RCA pass-thru, but standard speaker wire connections are also available.

Features

2/4 channel switch
1000 Watts total power
Front/Rear Crossover Controls: High-Pass (HP), Low-Pass (LP)
Front/Rear Tone Controls: Treble, Bass
Class A/B
24dB/octave crossover
4 Gauge power/ground terminals
Audiophile grade speaker connections
Blue LED Stealth Signal Meters
MOSFET output stage
MOSFET power supply
RCA pass-thru

Kicker ZX1500.1

Thu, 30 Oct 2008 15:03:05 -0400

The Kicker ZX1500.1 amplifier is part of a full Kicker ZX series. It is outfitted with differential RCA inputs which helps eliminate whines and trashy noise, improving the sound quality and the overall enjoyment of the music. The ZX mono-channel amplifier Kicker ZX1500.1 has 1500 watts protected by a heat sink. With 24dB/octave low pass electronic crossover and a 24dB/octave subsonic filter fixed at 25 hertz, the Kicker ZX1500.1 is a powerful part of the ZX Mono-Channel amplifier series. 18 decibels of boost are centered at 40 hertz and controlled with a remote bass control. The ZX mono amplifier series contains 300 watt amplifiers all the way up to 2,500 watts, a huge range of diversity giving the consumer the ability to choose exactly what they are looking for.

Features

Differential RCA inputs
Automatic turn-on modes
1500 watts
18 decibels of boost
Remote bass control
24dB/octave subsonic filter
24dB/octave low pass electronic crossover
Automatic Turn-On modes: DC Offset, Audio Signal Sense, +- 12V (Remote)

Kicker IX1000.1

Fri, 08 Oct 2010 17:26:23 -0400

The Kicker IX1000.1 is a powerful subwoofer amplifier for car audio systems. It uses a small footprint and Class D power to keep energy consumption low, but can deliver as much as 1000 Watts of power to the subwoofer. Balanced differential inputs are used to reduce noise and keep the amplifier compatible with most factory radios. The layout keeps all connections on one and and the user controls on the opposite end, making it possible to fit the amp in areas that have limited access. The system has 3 automatic turn-on modes to allow it to cut out when not needed, saving energy, and to have it kick in when appropriate.

Features

Super-small footprint
Monoblock Class D
Simple install with all connections on one end of amp and all user controls opposite
Balanced differential inputs
3 automatic turn-on modes
Mountable remote bass control with IX.1 sub amps
Optional IXSM stacking mount
Optional vinyl skins
1-year extended warranty with the purchase of a qualifying KICKER install kit

Specifications

RMS Power, all channels driven @14.4 Volts, 4Ω mono, ≤ 1% THD+N: 550 Watts, @ 2Ω mono, ≤ 1% THD+N: 1000 Watts
Dimensions (L x H x W): 9-3/8 x 2-3/16 x 7-7/8 in, 23.8 x 55 x 200 mm
Frequency Response: 25Hz-200Hz
Signal-to-Noise Ratio: 95 dB, a weighted, re: rated power
Input Sensitivity: Low Level 125mV-5V, High Level 250mV-10V
Electronic Crossover: Variable Low-Pass, 50Hz-200Hz, 24dB/octave
Remote Bass Capable: Yes (included)
Subsonic Filter: 24 dB/octave fixed@ 25Hz
Bass Boost: Variable 0-18dB Bass Boost @ 40Hz
Fuse, ampere 100
Power-Ground Wire, GA 4
CEA-2006 (Watts) @ 4 ohms, 14.4Vdc, 1% THD: 550 x 1
CEA-2006 Signal to Noise Ratio (ref: 1W, A-weighted): 75dB

Kicker IX500.1

Fri, 08 Oct 2010 17:26:23 -0400

The Kicker IX500.1 is a dedicated subwoofer amplifier for car audio systems. This is similar to the Kicker IX1000.1, but has half the power output. Apart from this they are virtually identical, right down to the same dimensions. Class D systems keep the power draw minimal, and balanced differential inputs reduce noise while keeping the system compatible with factory-radios. The system shuts itself down when not needed, and has 3 automatic turn-on modes to ensure it is active when the time comes.

Features

Super-small footprint
Monoblock Class D
Simple install with all connections on one end of amp and all user controls opposite
Balanced differential inputs
3 automatic turn-on modes
Mountable remote bass control with IX.1 sub amps
Optional IXSM stacking mount
Optional vinyl skins
1-year extended warranty with the purchase of a qualifying KICKER install kit

Specifications

RMS Power, all channels driven @14.4 Volts, 4Ω mono, ≤ 1% THD+N: 275 Watts, @ 2Ω mono, ≤ 1% THD+N: 500 Watts
Dimensions (L x H x W): 9-3/8 x 2-3/16 x 7-7/8 in, 23.8 x 55 x 200 mm
Frequency Response: 25Hz-200Hz
Signal-to-Noise Ratio: 95 dB, a weighted, re: rated power
Input Sensitivity: Low Level 125mV-5V, High Level 250mV-10V
Electronic Crossover: Variable Low-Pass, 50Hz-200Hz, 24dB/octave
Remote Bass Capable: Yes (included)
Subsonic Filter: 24 dB/octave fixed@ 25Hz
Bass Boost: Variable 0-18dB Bass Boost @ 40Hz
Fuse, ampere 50
Power-Ground Wire, GA 4
CEA-2006 (Watts) @ 4 ohms, 14.4Vdc, 1% THD: 275 x 1
CEA-2006 Signal to Noise Ratio (ref: 1W, A-weighted): 75dB

Rockford Fosgate P400-4

Tue, 24 Aug 2010 18:33:49 -0400

The Rockford Fosgate P400-4 is a middle-end car amplifier. It is a variation of the P400-2, and as such as all the same features. The only difference between the two is the number of speaker channels; the P400-4 has four, while the P400-2 only has two. This gives it superior audio compared to the P400-2. The P400-4 features NOMAD technology, which uses an analog computer to prevent shorting out the speaker wires. It achieves this by calculating in real time the device voltage and current, activating a protection circuit when it senses things are dangerous. The P400-4 also features DSM technology, which improves the efficiency of the circuits. It manages this by laser etched discrete components. This gives the components a 1% tight-tolerance, which decreases cross-talk between the components, thus improving the efficiency of the circuits, as well as lowering the operating temperature.

Features

4 speaker channels
NOMAD technology
DSM technology
Dynamic thermal management
MEHSA3 technology
Punch EQ2 technology
MOSFET technology
TRANS-ana technology
Rockford Fosgate Avatar
Top mounted LED indicators

Rockford Fosgate P400-2

Tue, 24 Aug 2010 18:33:48 -0400

The Rockford Fosgate P400-2 is a middle-end car amplifier. It features DSM technology, and differential inputs. When compared to another car amplifier by Rockford Fosgate, the P300-2, the P400-2 has many of the same features, but includes extras such as RCA pass-thru. This allows the user to use any device that has RCA output with the amplifier, instantly giving the P400-2 a large amount of compatible devices that the P300-2 cannot use. The DSM technology of the P400-2 allows the circuits of the amplifier to work more efficiently. It does this by utilizing 1% tight tolerances, and decreasing cross-talk between other discrete components. It also has the side effect of lowering the operating temperature. The P400-2 also features differential inputs, which eliminate noise picked up by signal cables. It does this by measuring the voltage of the positive and negative inputs, taking out anything in between. This greatly enhances the sound quality of the amplifier.

Features

DSM technology
Differential inputs
RCA pass-thru
NOMAD technology
Dynamic thermal management
Punch EQ2 technology
Rockford Fosgate Avatar
MOSFET technology
TRANS-ana technology
Top mounted LED indicators

Rockford Fosgate R150-2

Tue, 24 Aug 2010 18:33:47 -0400

The Rockford Fosgate R150-2 is a dual-channel, Class-A/V amplifier designed primarily to power a set of full-range or component speakers, though it can be bridged into a single 4-ohm channel to output 150W directly to a 10” or 12” subwoofer. When used with speakers, it can output 50W or 75W depending on Ohms, though the frequency remains consistent at 20Hz-20kHz. Testers have said the Rockford Fosgate R150-2 is optimal for powering a single 8” to 10” subwoofer, and standard factory speakers or factory replacement speakers. It is however not recommended for users seeking room-shaking bass from a 12” or larger woofer.

Features

Class-A/B Amplifier
Dual Channel Operation
50W RMS Power 2@4-Ohms
75W RMS 2@2-Ohms
150W RMS 1@4-Ohms Bridged
20Hz-20kHz Frequency
Variable Low-Pass Filter
Variable Bass Boost
Wired Remote Punch Level Control
MOSFET Power/Output Stages
Preamp-Level Inputs & Outputs
10-Gauge Power & Ground Leads (Recommended)
1-Year Limited Warranty
CEA-2006 Compliant

Hifonics HFi2500D

Tue, 10 Aug 2010 17:55:28 -0400

The Hifonics HFi2500D is one of four Hifonics HF Series D-Class Mono amplifiers released as weaker counterparts to the Hifonics Brutus Super D-Class Mono series. It’s the top unit in the series (aka the flagship model), as it incorporates improved circuitry for greater power output. In fact, it can handle up to 2500W at 1 Ohm and 1700W at 2 Ohms. Otherwise a duplicate of its predecessors, the Hifonics HFi2500D inherits variable low pass, subsonic filters, integrated diagnostics, and a heat-dissipation heat-sink design, not to mention an advanced equalizer and RCA inputs/outputs. Also included is an illuminated Hifonics Logo.

Features

Hifonics HF Series
D-Class Mono Amplifier
1/2/4-Ohm Options
2500W @ 1 Ohm Max Power
1700W @ 2 Ohms
Tight Bass
Low Distortion
Variable Low-Pass
Subsonic Filter
Integrated Diagnostics
Enhanced Heat-Sink Design
Improved Heat Dissipation
Improved Cost Savings (Energy)
Advanced EQ System
Bass Boost
RCA Inputs/Outputs
Bass Remote
Illuminated Hifonics Logo

Lanzar OPTID100

Tue, 10 May 2011 13:45:27 -0400

Rockford Fosgate P300-2

Tue, 24 Aug 2010 18:33:48 -0400

The Rockford Fosgate P300-2 is a low-end car amplifier. It features dynamic thermal management, and TRANS-ana technology. When compared to another car amplifier from Rockford Fosgate, the P200-2, the P300-2 has several advantages. It builds on the features of the P200-2 by introducing several new ones, such as the previously mentioned dynamic thermal heat management, which evenly distributes heat across a heatsink that spans the entire amplifier. This has the effect of keeping the internal components cool, and maximizing the potential of all the components. This ultimately results in better sound quality, and also makes the amp more energy efficient. Another feature the 300-2 adds over the 200-2 is DSM technology, which improves the efficiency of the circuits, while helping to maintain a low operating temperature. It achieves this by having the discrete components laser etched, which causes less cross-talk between the components, ultimately increasing efficiency and lowering excess heat. The TRANS-ana technology (a feature the P300-2 shares with the 200-2) lets a signal enter the amplifier with low voltage, increasing the reliability of the amp, and making it sound better.

Features

Dynamic thermal management
TRANS-ana technology
DSM technology
Punch EQ technology
NOMAD techology
Rockford Fosgate Avatar
Differential inputs
MOSFET technology
MEHSA3 technology
Top mounted LED indicators

Rockford Fosgate R250-1

Tue, 24 Aug 2010 18:33:46 -0400

The Rockford Fosgate R250-1 is a single-channel, Class-A/B amplifier designed to power a center channel in a high-powered 5.1- surround system, or two 8” or 10” 4-ohm SVC subwoofers wired in parallel. It provides a much lower 250W power rating, while still maintaining an ultra-wide 20Hz-130Hz frequency. Included is a Punch Level Control that corrects acoustic anomalies, insuring that bass is deep and highs/lows are crisp. Testers have said that the Rockford Fosgate R250-1 performs very well, and that it stays relatively cool when powered on. However, they’ve noted that the unit isn't designed for blasting music through a two-mile radius.

Features

Class-A/B Amplifier
Single Channel Operation
150W RMS Power (4 Ohms)
250W Max (2 Ohms)
20Hz-130Hz Frequency
Variable Low-Pass Filter
Variable Bass Boost
Wired Remote Punch Level Control
MOSFET Power/Output Stages
Preamp-Level Inputs & Outputs
4-Gauge Power & Ground Leads (Recommended)
CEA-2006 Compliant

Behringer EPX3000

Tue, 10 Aug 2010 17:55:29 -0400

The Behringer EPX3000 is a high-end 3,000 watt stereo power amplifier for vehicle usage. This amp is capable of delivering 1,500 watts per channel at 2 Ohms, or 900 watts at 4 Ohms. Compared to other transformer-based amps, this switch-based amp weighs approximately 40% less than competing models. The EPX3000 features ATR (Accelerated Transient Response) technology, something Behringer claims increases audio clarity and punch. This amp also features switchable limiters to cap the maximum output level, and overload protection to prevent speaker blowouts. Built-in is a subwoofer/satellite crossover, adding flexibility to the Behringer EPX3000. Inputs include XLR, ¼” TRS and RCA.

Features

2 x 1,500 Watts into 2 Ohms
2 x 900 Watts into 4 Ohms
3,000 Watts into 4 Ohms (bridge mode)
ATR (Accelerated Transient Response) technology
Light and efficient switch-mode power supply
Switchable limiters
Overload protection
Detented gain controls
Signal and clip LED monitoring
XLR , 1/4" TRS and RCA input connectors
Built-in subwoofer/satellite crossover
Independent DC and thermal overload protection on each channel
Back-to-front ventilation system

Hifonics Brutus BRZ3000.1D Pro

Tue, 10 Aug 2010 17:55:28 -0400

The Hifonics Brutus BRZ3000.1D Pro is one of five Hifonics Brutus Super D-Class Mono amplifiers. As the top unit in the series, the Pro is especially geared for efficient SPL, as it offers higher current capacities and more precise digital to analog conversion. In particular, the amplifier is capable of a 3000W output 1 Ohm. Plus it’s battery stable up to 18 volts. Like its weaker peers, the BRZ3000.1D Pro relies on new vertical fin heat-sink design for enhanced heat dissipation, which in turn means less impact on a car’s battery system. Additional features include Link & Sync Link capabilities, an advanced equalizer with Bass Boost options, and a balanced line input for MX accessories and line drivers.

Features

Super D-Class Series
Flagship Mono Amplifier
1/2/4-Ohm Options
3000W Max Power
Vertical Fin Heat-Sink Design
Enhanced Heat Dissipation
Improved Cost Savings (Energy)
Variable Low Pass
Subsonic Filter
Phase Shift
Level Control
Bass EQ w/45Hz Bass Boost
Balanced Line Input
Bass Remote
Integrated Diagnostics
Illuminated Hifonics Logo
Link & Sync Linking Capabilities

Kicker ZX500.1

Thu, 30 Oct 2008 15:03:44 -0400

The Kicker ZX500.1 amplifier is one of the more cost effective amps in the Kicker ZX mono series. It is outfitted with differential RCA inputs which helps eliminate whines and trashy noise, improving the sound quality and the overall enjoyment of the music. The ZX mono-channel amplifier Kicker ZX500.1 has 500 watts protected by a heat sink. With 24dB/octave low pass electronic crossover, a 24dB/octave subsonic filter fixed at 25 hertz, and 18 decibels of boost centered at 40 hertz the Kicker ZX500.1 is a good example of the ZX series. Included is a remote bass control to make it easy to work with no matter where it is installed. The ZX mono amplifier series contains 300 watt amplifiers all the way up to 2,500 watts, a huge range of diversity giving the consumer the ability to choose exactly what they are looking for. With the ZX500.1 the consumer gets a medium power amplifier for a lower cost.

Features

Differential RCA inputs
Automatic turn-on modes
500 watts
18 decibels of boost
Remote bass control
24dB/octave subsonic filter
24dB/octave low pass electronic crossover
Automatic Turn-On modes: DC Offset, Audio Signal Sense, +- 12V (Remote)

Rockford Fosgate P500-4

Tue, 24 Aug 2010 18:33:49 -0400

The Rockford Fosgate P500-4 is a middle-end car amplifier. It is a variation of the P500-2, and has all the same features as it. There is only one major difference between the two amplifiers; the P500-4 has four speaker channels, as opposed to the P500-2, which only has two. This gives the P500-4 better quality audio compared to the P500-2. The P500-4 features TRANS-ana technology, which lets the audio signal pass through the amp at a lower voltage. It achieves this by simplifying the signal path of the amplifier. This also has the additional effect of increasing the reliability of the amplifier, as well as increasing sound quality. The P500-4 also features a dynamic thermal management system, which efficiently removes excess heat from the amplifier. It does this by distributing the heat evenly across a heatsink that spans the entire amp. This also keeps the internal components cool, and reduces sound distortion.

Features

TRANS-ana technology
Dynamic thermal management system
Four speaker channels
DSM technology
MEHSA3 technology
NOMAD technology
Punch EQ2 technology
MOSFET technology
Rockford Fosgate Avatar
Top mounted LED indicators

JL Audio HD750/1

Fri, 31 Oct 2008 00:48:36 -0400

The JL Audio HD750/1 is a class D monoblock full-range amplifier based on Single Cycle Control switching technology. The second amp in the JL Audio HD series, the HD750/1 utilizes one channel instead of its 4 channel peer, the HD600/4. Whereas the HD600/4 outputs 150w per each channel for a total of 600w, the HD750/1 outputs 750w through its one channel. The HD750/1 also supports additional features such as an infrasonic filter, output polarity reversal, and dual mono speaker output connections. The Audio HD750/1, however, offers a reduced dampening factor of >500 @ 4 ohm / 50 Hz (versus the HD600/4’s >300 @ 4 ohm PER CH. / 50 Hz). Priced at $699.99, the JL Audio HD750/1 is cited as a decent solution for consumers seeking a one channel amplifier.

Features

Rated Power: 750 W RMS @ 1.5 ohm - 4 ohm (11V-14.5V)
THD at Rated Power: <0.03% @ 4 ohm
S/N Ratio: >110 dB below rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth)
Frequency Response: 6 Hz - 30 kHz (+0, -1dB)
Damping Factor: >500 @ 4 ohm / 50 Hz, >250 @ 2 ohm per / 50 Hz
Input Range: Switchable from 200mV-2V RMS to 800mV-8V RMS
Dimensions (L x W x H): 10.74 in. x 8.29 in. x 1.93 in.

Panasonic CY-PA4003U

Tue, 24 Mar 2009 01:12:21 -0400

The Panasonic CY-PA2003U is a 4 channel car amplifier with a maximum output power of 1000W (600W x 2). It employs MOS-FET devices having low internal impedance. This helps preserve the transparency and crispness of the original audio signal for faithful audio reproduction through the connected speakers. There is a Low-Pass filter for Subwoofer, a feature that makes it easier to upgrade to subwoofers. There are several line-out jacks for expansion, which lets users easily connect multiple amps, while keeping the wiring neat for an attractive appearance. It has intelligent Bass Servo Circuit which results in a bass that is more coherent with the rest of the frequency spectrum, achieving greater fidelity to the original sound.

It has a Versatile Bridgeable Amp, with a 4-channel amp users can bridge it for 3-channel or 2-channel output. Drive four speakers, two speakers, or two speakers and a subwoofer.

Features

Digital Technology: No
Power Output (maximum): 225W x 4
Power Output (at 4Ω and ≤ 1% THD+N): 64W x 4
Signal to Noise Ratio (1W into 4Ω): 85dBA
THD (1kHz): 0.02%
Frequency Response (±1.0dB): 10Hz - 30kHz
Crossover Frequencies: 50Hz - 250Hz
Bass Boost: 0dB - 15dB
Input Level Adjustment: 200mV - 6V
Speaker Impedance: 4Ω
Current Consumption: 24A (200W x 2, 4Ω)
Line-Out Jacks: Yes
Dimensions (H x W x D): 27/16"'' x 131/8"'' x 11"''

Kicker ZX750.1

Thu, 30 Oct 2008 15:03:53 -0400

The Kicker ZX750.1 amplifier is one of the more cost effective amps in the Kicker ZX mono series. It is outfitted with differential RCA inputs which helps eliminate whines and trashy noise, improving the sound quality and the overall enjoyment of the music. The ZX mono-channel amplifier Kicker ZX750.1 has 750 watts protected by a heat sink. With 24dB/octave low pass electronic crossover, a 24dB/octave subsonic filter fixed at 25 hertz, and 18 decibels of boost centered at 40 hertz the Kicker ZX750.1 is a good example of the ZX series. Included is a remote bass control to make it easy to work with no matter where it is installed. The ZX mono amplifier series contains 300 watt amplifiers all the way up to 2,500 watts, a huge range of diversity giving the consumer the ability to choose exactly what they are looking for. With the ZX750.1 the consumer gets a middle choice - medium power combined with a price that isn't low, but isn't as high as the more powerful models.

Features

Differential RCA inputs
Automatic turn-on modes
750 watts
18 decibels of boost
Remote bass control
24dB/octave subsonic filter
24dB/octave low pass electronic crossover
Automatic Turn-On modes: DC Offset, Audio Signal Sense, +- 12V (Remote)

Kicker ZX850.4

Sun, 02 Nov 2008 17:04:29 -0500

The Kicker ZX850.4 is the most powerful and the most expensive of the multi-channel systems. ZX multi-channel amplifiers range from 50 watts x 4 channels all the way to 215 watts x 4. This gives the buyer a decent variety of power and price to choose from. The ZX850.4 is one of the stronger of these, putting out 215 watts per channel. The multi-channel series have features similar to the stereo series such as a 12dB/octave electronic crossover and a KICKEQ Boost of up to 18 decibels of bass centered at 40 hertz. The multi-channel series has some features the stereo series doesn't have, such as a fader dial which gives the consumer just that much more control over their sound system. The ZX850.4 does include a remote bass control - a nice touch that makes the system that much more appealing.

Features

Remote bass control
Power: 215 watts x 4
Dimensions: Length 23-1/4 in, Height 2-1/8 in, Depth 9-5/8 in
Active Crossover: 12dB/octave, fixed at 80Hz - selectable high, low or all pass
KICKEQ Boost
Differential RCA inputs
Automatic turn-on modes: +12 V(Remote), DC Offset, Audio (Signal Sense)
Largest and most powerful in series

Alpine MRP-M2000

Tue, 04 Nov 2008 14:40:11 -0500

The Alpine MRP-M2000 is a mono channel power amplifier that delivers up to 2000 watts with a crossover of 50Hz-200Hz, -24dB/oct. With all that power there is a risk that the temperature could diminish the longevity of the system. The MRP-M2000 includes thermal management control to save energy and dissipate heat to create a high power system without risking long term functionality. The quality of the sound is protected by non-fading pre-amp output and a subsonic filter. The design is sleek and aimed to be easy to install and expand with preamp and speaker level inputs - perfect for a consumer who is planning on adding on later.

Features

2000W x 1 (2 Ohms)
1500W x 4 (4 Ohms)
Crossover: 50Hz-200Hz, -24dB/oct (Low-Pass/High-Pass)
Non-Fading Pre-Amp Output
Blue LED Power Indicator
Thermal Management Control
Gold Plated RCA Input Connectors
STAR board circuitry
Over-Current, Over-Voltage, and Thermal Protection

JL Audio G-MAX

Sun, 02 Nov 2008 19:46:42 -0500

The JL Audio G-MAX is a class D monoblock subwoofer amplifier based on a high-dampening class D circuit with discrete control circuitry. The most powerful amplifier in the G series, the G-MAX is only challenged by the 1000/1v2, its superior competitor in the Slash v2 series. In addition, unlike the 75-150w power ratings offered by other JL Audio amplifiers, the G-MAX offers up to 1200w @ 2 ohm, and 600w @ 4 ohm. In fact, the G-MAX can be switched from 14.4 V to 12.5V, thereby actually lowering the wattage down to 450 and 900. The G-MAX also borrows the Slash v2’s advanced thermal and low-impedance protection to eliminate shut-down events. Priced at $649.99, only $50 to $200 versus its competitors, the JL Audio G-MAX is cited as a highly affordable, top-quality amplifier with a great bang for the buck.

Features

Rated Power 14.4 V: 600 W RMS x 1 @ 4 ohm, 1200 W RMS x 1 @ 2 ohm
Rated Power 12.5 V: 450 W RMS x 1 @ 4 ohm, 900 W RMS x 1 @ 2 ohm
THD at Rated Power: <1% THD, 20 Hz - 250 Hz
S/N Ratio: >90 dB referred to rated power (A-weighted, 20 Hz – 250 Hz noise bandwidth)
Frequency Response: 10 Hz – 250 Hz (+0, -1dB)
Damping Factor: >500 @ 4 ohm / 50 Hz, >250 @ 2 ohm / 50 Hz
Input Range: 200mV – 8V RMS
Dimensions: 15.75 in. x 9.25 in. x 2.50 in.

Boss AR1500M

Tue, 10 May 2011 13:55:25 -0400

Panasonic CY-PAD1003U

Tue, 24 Mar 2009 01:22:07 -0400

The Panasonic CY-PAD1003U is a single channel digital car amplifier with a maximum power output of 1100 Watts. Compared to the 45% to 55% efficiency of a conventional analog amp, a "digital" amp can attain over 70% to 80% efficiency by converting the input signal to a pulse signal and operating its output stage in "class D" or switching mode. There is a Low-Pass filter for Subwoofer, a feature that makes it easier to upgrade to subwoofers. There are several line-out jacks for expansion, which lets users easily connect multiple amps, while keeping the wiring neat for an attractive appearance. It has intelligent Bass Servo Circuit which results in a bass that is more coherent with the rest of the frequency spectrum, achieving greater fidelity to the original sound.

Features

Digital Technology: Yes
Power Output (maximum): 1100W x1
Power Output (at 4Ω and ≤ 1% THD+N): 350W x 1
Signal to Noise Ratio (1W into 4Ω): 85dBA
THD (1kHz): 0.02%
Frequency Response (±1.0dB): 10Hz - 30kHz
Crossover Frequencies: 50Hz - 250Hz
Bass Boost: 0dB - 15dB
Input Level Adjustment: 200mV - 6V
Speaker Impedance: 4Ω
Current Consumption: 24A (200W x 2, 4Ω)
Line-Out Jacks: Yes
Dimensions (H x W x D): 27/16"'' x 1115/16"'' x 11"''

Rockford Fosgate P200-2

Tue, 24 Aug 2010 18:33:48 -0400

The Rockford Fosgate P200-2 is a low-end car amplifier. It is designed to amplify sound inside of the users automobile. It features differential inputs, and TRANS-ana technology. The differential inputs of the P200-2 eliminate noise picked up by signal cables. It achieves this by measuring the voltage of the positive and negative inputs, then subtracts what's left over (the noise). This enables only a clean signal to enter the amplifier, enhancing the sound quality greatly. The P200-2 also features TRANS-ana technology, which allows a signal to enter the amplifier at a lower voltage level, enhancing sound quality and increasing reliability. This technology works by simplifying the signal path of the amplifier. When compared to another car amplifier by Rockford Fosgate, the P300-2, the P200-2 has many of the same features, but lacks certain others, such as Punch EQ2 technology.

Features

Differential inputs
TRANS-ana technology
MEHSA technology
NOMAD technology
Rockford Forsgate Avatar
MOSFET technology
Stealth connections
Thermal sensing
Aux outputs
Infrasonic filter

Pyle Audio PLA3000D

Thu, 20 Nov 2008 11:10:49 -0500

The Pyle Audio PLA3000D model is a high-end automotive stereo amplifier in the Pyle Red Elite series. The amplifier is designed for audiophiles and music lovers alike; and is geared to a more mature audience (obviously those old enough to drive). The PLA3000D model features a total 2400 watt bridged output with several operating ranges such as RMS power of; 4 ohms at 400W, 2 ohms at 800W, and 1.3 ohms at 1200W. It also includes glass epoxy PCB, a PWM (Pulse Width Modulation) system, variable bass boost, and a variable subsonic filter (15Hz-10Hz, 24dB/Octave). Additional features include gold RCA inputs, a custom terminal block for speaker connection, remote bass control, soft turn on/off, a 0-180 degree phase control, advanced thermal and overload protection circuitry, a heavy duty power coated heatsink, a fully illuminated top panel, anti-thump turn on and a 1 ohm stereo table. The PLA3000D amp comes packaged with a MOSFET PWM power supply and a 1 year manufacturer's warranty.

Features

1 channel audio amplifier
2400 watt bridged output
Multiple range modes
- RMS Power: 4 ohms at 400W
- RMS Power: 2 ohms at 800W
- RMS Power: 1.3 ohms at 1200W
Glass epoxy PCB
PWM (Power Width Modulation) system
Variable bass boost
Variable Subsonic filter (15Hz-10Hz, 24dB/Octave)
Gold RCA inputs
Remote bass control
Fully illuminated top panel
Custom Terminal Block for speaker connection
Advanced thermal and overload circuit protection
Soft turn on/off
0-180 degree phase control
Heavy duty power coated heatsink
Anti-thump turn on
1 ohm stereo table
Includes: MOSFET PWM power supply and 1 year manufacturer's warranty

Key Specs

Maximum Power Output: 2400W mono
Impedance: 10K ohms
S/N Ratio: >90dB
Dimensions: 10.9'' (W) x 2.7'' (H) x 15'' (L)

JL Audio 500/5

Mon, 03 Nov 2008 04:53:42 -0500

The JL Audio 500/5 is a hybrid class D & class A/B five-channel system amplifier based on a high-damping class D circuit with discrete control circuitry. The only five-channel mobile amplifier offered by JL Audio, the 500/5 is quite different from its peers in the HD, Slash v2, and G series. Although the 500/5 contains five channels, it functions more like a three channel amp. The five channels are divided into front channels (2), rear channels (2), and a subwoofer channel. In addition, each channel grouping sports its own unique power rating, frequency response, and even its own damping factor. For instance, the 500/5’s most powerful channel, the subwoofer channel, offers 250w of power at 5Hz-300Hz frequency and >500 @ 4 ohm. The Audio 500/5 also features a vertical, cast aluminum RealSink for improved heat dissipation, flexible preamp outputs, and differential-balanced inputs. Priced at $849.99, the JL Audio 500/5 is an expensive, but highly powerful solution for consumers seeking a multifunctional, multi-channel amplifier that packs a powerful punch.

Features

Rated Power Front Channels: 100 W RMS x 2 @ 1.5 ohm-4 ohm (11V-14.5V)
Rated Power Rear Channels: 25 W RMS x 2 @ 1.5 ohm-4 ohm (11V-14.5V)
Rated Power Subwoofer Channel: 250 W RMS @ 1.5 ohm-4 ohm (11V-14.5V)
THD at Rated Power: <0.03% @ 4 ohm (front and rear ch.), <0.05% @ 4 ohm (subwoofer ch.)
S/N Ratio (Front & Rear Channels): >108.5 dB below rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth)
S/N Ratio (Subwoofer Channel): >95 dB below rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth)
Frequency Response (Front and Rear Channels): 5 Hz - 30 kHz (+0, -1dB)
Frequency Response (Subwoofer Channel): 5 Hz - 300 Hz (+0, -1dB)
Damping Factor (Front and Rear Channels): >200 @ 4 ohm / 50 Hz
Damping Factor (Subwoofer Channel): >500 @ 4 ohm / 50 Hz
Input Range: Switchable from 200mV-2V RMS to 800mV-8V RMS
Dimensions (L x W x H): 19.70 in. x 9.25 in. x 2.36 in.

Pioneer GM-D7400M

Tue, 04 Nov 2008 00:05:55 -0500

The Pioneer GM-D7400M is a one-channel class D amplifier based on an extra-compact class D circuit designed for extra-versatile installation. Designed as an affordable competitor to the $499.95 Premier PRS-D1200M of the PRS series, the $219.95 GM-D7400M offers a reduced maximum power output of 800w (versus 1200w). The GM-D7400M, however, supports an improved harmonic distortion of 0.03% (versus 0.5%), a superior signal-to-noise ratio of 100dB (versus 92dB), and an enhanced load impedance capability of 2-8ohm (versus 1-8ohm). The GM-D7400M also includes a Pulse Width Modulator, a Low Pass Filter, a selectable 50Hz bass boost, built-in crossovers, and speaker level inputs. Despite its reduced power output, the Pioneer GM-D7400M is nonetheless cited as an extremely wise choice due to its affordable price and inclusion of extra features not found on the PRS-D1200M.

Features

Output Power (4 Ohm, <=1% THD): 250W x 1
Output Power (2 Ohm, <=1% THD): 400W x 1
Signal to Noise (1 Watt into 4 Ohms): 80 dBA
Signal-to-Noise Ratio: 100dB
Peak Music Power: 800 Watts
Number of Channels: 1
Load Impedance Capability: 2~8 Ohm
Continuous Power (4 ohm): 250W x 1
Continuous Power (2 ohm): 400W x 1
Frequency Response: 10Hz ~ 240Hz
Total Harmonic Distortion: 0.03%
Dimensions: 8-7/8” x 2-1/4” x 7-7/8”

Pioneer GM-5300T

Tue, 04 Nov 2008 00:05:45 -0500

The Pioneer GM-5300T is a two-channel bridgeable amplifier from the Pioneer GM series. An upgrade from the GM-3300T, the GM-5300T offers a maximum power output of 750w (versus 300w) and a superior frequency of 10Hz-50Hz (versus 10Hz-40kHz). The GM-5300T, however, does maintain the same signal-to-noise ratio of >100dB, as well as built-in crossovers and speaker level inputs. Priced at $159.95, approximately $60 over the GM-3300T, the Pioneer GM-5300T is cited as a top-notch solution for consumers willing to spend a little extra money for a more powerful amplifier.

Features

Output Power (4 Ohm, <=1% THD): 125W x 2
Output Power (4 Ohm Bridged, <=1% THD): 380W x 1
Output Power (2 Ohm, <=1% THD): 190W x 2
Signal to Noise (1 Watt into 4 Ohms): 75 dBA
Signal-to-Noise Ratio: >100dB
Peak Music Power: 760 Watts
Number of Channels: 2
Load Impedance Capability: 2~8 Ohm (Stereo), 4~8 Ohm (Bridged)
Continuous Power (4 ohm): 125W x 2
Continuous Power (2 ohm): 190W x 2
Continuous Power Bridged (4 ohm): 380W x 1
Frequency Response: 10Hz ~ 50kHz
Total Harmonic Distortion: 0.015%
Dimensions: 11-13/16"x2-3/8"x 13-1/8"

JVC KS-AR8001D

Sat, 17 Jan 2009 23:29:16 -0500

The JVC KS-AR8001D is a mono digital car amplifier from JVC's Arsenal AR8000 series for 2009. The amplifier features a MOSFET power supply and pre-output stage to provide an RMS power output of 700 watts and frequency response of 20-300Hz. It is designed quite small allowing flexiblility of installation and has an illuminated panel to make it easily viewable regardless of where it is placed in the car. The KS-AR8001D offers numerous controls including variable input RCA level and bass boost and includes protected anti-pop circuitry for long-lasting performace. The amplifier is the digital upgrade to JVC's KS-AR7001 from it's Arsenal AR7000 series and offers an additional 300 watts of power compared to the KS-AR7001.

Features/Specs

THD less than 0.04% at 1kHz
PWM-regulated MOS-FET power supply
MOS-FET Output stage
Max power output of 800W
RMS Power Output: 700W at 4 or 2 ohms
Frequency Response: 20–300Hz
Class-D circuit
Variable input RCA level control
Variable bass boost control
Gold-plated RCA jacks
Gold-plated block terminals
Thermal/short circuit/overload/DC offset protection circuitry
Anti-pop circuit
Control panel on top/cover
Blue LED illumination
Dimensions: 10'' x 2.5'' x 7.25"

JVC KS-AR9501D

Sat, 17 Jan 2009 20:53:57 -0500

The JVC KS-AR9501D is a high power digital car amplifier from JVC's Arsenal lineup for 2009. The amplifier features a MOSFET power supply and pre-output stage to provide a maximum power output of 1800 watts. It is designed with a slightly curved main unit for flexibility in installation and has an illuminated panel to make it easily viewable regardless of where it is placed in the car. The KS-AR9501D includes an external bridging feature making it possible to use it along with another amplifier for twice the power. It offers numerous controls including variable input RCA level, speaker input, bass boost, and phase controls as well as protected anti-pop circuitry for long-lasting performace. The amplifier is an upgrade to JVC's KS-AR7501D and offers 600 more watts of power compared to the KS-AR7501D.

Features/Specs

Max. Power Output of 1800W
PWM Regulated MOS-FET Power Supply
MOS-FET Pre-Output Stage
Stackable 4-way installation
Frequency Response: 20 - 300Hz
Phase Control (0/180 degree)
Variable Input RCA Level Control (0.3 - 6V)
Variable Speaker Input Control (1.2 - 12V)
Variable Bass Boost Control (45Hz, 0-18dB)
Gold-Plated RCA Jacks
Gold-Plated Block Terminals (Power: 4AWG, 8AWG/Speakers: 8AWG)
Protection Circuitry (Thermal/Short Circuit/Overload/DC Offset)
Anti-Pop Circuit
Control Panel on Front (Cover)
LED Illumination

Power Acoustik OV1-5500D

Tue, 10 May 2011 14:59:25 -0400

JVC KS-AX3002

Wed, 21 Jan 2009 01:57:14 -0500

The JVC KS-AX3002 is a compact Class AB car amplifier that features a Pulse Width Modulated regulated MOS-FET power supply and thermal, short-circuit, overload, and DC-offset protection circuitry. The first of three JVC KS-AX amplifiers, the KS-AX3002 offers a maximum power output of 370w, not to mention 2- or 1-channel operation. In addition, the KS-AX3002 boasts a 76dB sensitivity and a 5 – 50,000Hz frequency response. The KS-AX3002 also sports a speaker-level input terminal connection, gold-plated RCA input terminals, and an LED indicator. The JVC KS-AX3002 retails for $119.95 and comes with a 1 year limited warranty.

Features

Class AB Amplifier
MOS-FET Power Supply
Protection Circuitry
2 Channels
Maximum Power Output: 370w
Sensitivity: 76dB
Frequency Response: 5 – 50,000Hz
Speaker Level Input
Gold-Plated RCA Input
LED Indicator
1 Year Limited Warranty

JVC KS-AR8004D

Sat, 17 Jan 2009 23:46:49 -0500

The JVC KS-AR8004D is a 4-channel digital car amplifier from JVC's Arsenal AR8000 series for 2009. The amplifier features a MOSFET power supply and pre-output stage to provide a RMS power output of 130 watts per channel (at 2 ohms) and wide frequency response of 5-40Hz. It is designed quite small allowing flexiblility of installation and has an illuminated panel to make it easily viewable regardless of where it is placed in the car. The KS-AR8004D can be externally bridged making it possible to use it along with another amplifier for twice the power. It offers numerous controls including variable input RCA level and bass boost and includes protected anti-pop circuitry for long-lasting performace. The amplifier is the digital upgrade to JVC's KS-AR7004D from it's Arsenal AR7000 series.

Features/Specs

PWM-regulated MOS-FET power supply
MOS-FET Output stage
Max power output of 600W
RMS Power Output: 120W RMS x 4 at 4 ohms, 130W RMS x 4 at 2 ohms, 240W RMS x 2 at 4 ohms bridged
4-, 3- or 2-Channel Operation
Full Range digital Class D
Frequency Response: 5–40kHz
Class-D circuit
Variable input RCA level control
Variable bass boost control
Gold-plated RCA jacks
Gold-plated block terminals
Thermal/short circuit/overload/DC offset protection circuitry
Anti-pop circuit
Control panel on top/cover
Blue LED illumination
Dimensions: 10'' x 2.5'' x 7.25"

Alpine PDX-1.1000

Tue, 04 Nov 2008 13:17:57 -0500

The Alpine PDX-1.1000 is a mono power density digital amplifier that delivers 1000 watts of power, making it the most powerful in the Alpine PDX series. It is the same size and shape as the rest of the series (10-1/8" Width, 7-9/16" Height, 2-7/16" Depth) and is designed for stacking. Combine the PDX-1.1000 with any others in the series to make a compact powerful tower that can save space in the trunk or under a seat. The design of the unit is modern, aesthetically pleasing, and allows for a clean looking installation with its wire hookups all on one side. One feature that stands out is the fact that the power output is the same for both 2 Ohm or 4 Ohm loads - something not many amplifiers can boast of.

Features

Easy, flexible installation
60% smaller than previous models
Same power output for both 2Ω or 4Ω loads
Stackable with any model in series
10-1/8" Width, 7-9/16" Height, 2-7/16" Depth
4-Layer Glass Epoxy PC Board
RCA Output: Non-Fading Pre-Amp Output
Crossover: Variable, 50Hz - 200Hz (-24dB / oct), Low-Pass
Adjustable Gain Control

JL Audio 500/1v2

Fri, 31 Oct 2008 02:12:09 -0400

The JL Audio 500/1v2 is a class D monoblock subwoofer amplifier based on a high-damping class D circuit with discrete control circuitry. The first model in the Slash v2 to offer only one channel, the Audio 500/1v2 supports up to 500w rated power, a 5Hz-250Hz frequency response, and a >500 @ 4 ohm dampening factor. Like its cousin, the Audio 250/1v2, the 500/1v2 also includes 2-channel preamp output, a fully-variable 24dB/octave infrasonic filter, and a signal-sensing turn-on capability that permits operation without a remote lead. In addition, the Audio 500/1v2 is priced at $599.99, a $100 less than its one-channel competitor in the HD series, the 750w HD750/1. The JL Audio 500/1v2 is considered an ample choice for consumers seeking a powerful subwoofer amplifier that is powerful, yet also affordable (at least in regards to other amplifiers).

Features

Rated Power: 500 W RMS @ 1.5 ohm - 4 ohm (11V-14.5V)
THD at Rated Power: <0.05% @ 4 ohm
S/N Ratio: >95dB below rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth) Frequency Response: 5 Hz - 250 Hz (+0, -1dB)
Damping Factor: >500 @ 4 ohm / 50 Hz, >250 @ 2 ohm / 50 Hz
Input Range: Switchable from 200mV-2V RMS to 800mV-8V RMS
Dimensions: 13.40 in. x 9.25 in. x 2.36 in.

Panasonic CY-PA2003U

Tue, 24 Mar 2009 00:59:05 -0400

The Panasonic CY-PA2003U is a car amplifier with a maximum output power of 1200W (600W x 2). It employs MOS-FET devices having low internal impedance. This helps preserve the transparency and crispness of the original audio signal for faithful audio reproduction through the connected speakers. There is a Low-Pass filter for Subwoofer, a feature that makes it easier to upgrade to subwoofers. There are several line-out jacks for expansion, which lets users easily connect multiple amps, while keeping the wiring neat for an attractive appearance. It has intelligent Bass Servo Circuit which results in a bass that is more coherent with the rest of the frequency spectrum, achieving greater fidelity to the original sound.

Features

Digital Technology: No
Power Output (maximum): 600W x 2
Power Output (at 4Ω and ≤ 1% THD+N): 200W x 2
Signal to Noise Ratio (1W into 4Ω): 85dBA
THD (1kHz): 0.02%
Frequency Response (±1.0dB): 10Hz - 30kHz
Crossover Frequencies: 50Hz - 250Hz
Bass Boost: 0dB - 15dB
Input Level Adjustment: 200mV - 6V
Speaker Impedance: 4Ω
Current Consumption: 24A (200W x 2, 4Ω)
Line-Out Jacks: Yes
Dimensions (H x W x D): 27/16"'' x 131/8"'' x 11"''

JVC KS-AX4302

Wed, 21 Jan 2009 01:57:44 -0500

The JVC KS-AX4302 is a compact Class AB car amplifier that features a Pulse Width Modulated regulated MOS-FET power supply and thermal, short-circuit, overload, and DC-offset protection circuitry. The second of three JVC KS-AX amplifiers, the KS-AX4302 is an upgrade from the JVC KS-AX3002 in that it offers an improved power output of 600w (versus 370w) and a superior sensitivity of 80dB (versus 76dB), not to mention a variable bass boost control, a variable speaker input control, and a variable RCA input level control. In all other ways, the KS-AX4302 is practically a duplicate of its peer. For instance, the KS-AX4302 supports 2- or 1-channel operation, a speaker-level input terminal connection, gold-plated RCA input terminals, and an LED indicator. The JVC KS-AX3002 retails for slightly more expensive $169.95 (versus $119.95) and comes with a 1 year limited warranty.

Features

Class AB Amplifier
MOS-FET Power Supply
Protection Circuitry
2 Channels
Maximum Power Output: 600w
Sensitivity: 80dB
Frequency Response: 5 – 50,000Hz
Speaker Level Input
Gold-Plated RCA Input
LED Indicator
1 Year Limited Warranty

Cadence IA9HC D2000.1

Tue, 15 Sep 2009 10:58:13 -0400

CADENCE iA9HC Review from Performance, auto, and sound magazine

Up in the Northeast corner of the United States, in Howell, New Jersey to be exact, is where you’ll find the folks of Cadence Acoustics. This dedicated group of people have been turning out high performance audio products for over 18 years! The company has made a name for itself as an innovative brand, offering high performance but still very moderately priced products. Sold in over thirty countries worldwide, the company believes they have a new approach to the old ways of thinking about sound reproduction.

A quick trip to their website; www.cadencesound.com informed me that their motto is “Consistently louder! Consistently harder!” So when the UPS driver dropped off the latest Cadence high performance Class D amplifier, I was eager to check it out and see what was what.

The amp they sent is one of the new iA series of amplifiers, and is sold by Cadence retailers as well as authorized internet retailers, so finding one near you shouldn’t be a problem. Once out of the box, the iA9HC is heavy and gives the impression of being a solidly built product. Rated at 2,000 watts into 1 ohm, the amplifier sells for about 700 bucks in the US market and slightly more in Canada, with a great 5-year warranty.

The black anodized heatsink is finished in a classy brushed aluminum look, with the Cadence logo CNC machined into the top for nice contrast. Measuring 16 x 9.25 x 2.5 inches it’s about in the middle of amplifier chassis sizes, and comes with a clear Lucite bottom cover, which lets you gaze at all the impressive cool parts inside, if you’re into that sort of thing. And I am!

Features

Belying its low price, the Cadence iA9HC doesn’t skimp on features either. It comes with all the usual controls; gain, crossover adjustment, subsonic filter, bass EQ, and pass through RCA’s. But in addition to the “usual” features, there are a few other unique ones that will prove to be very useful in system building and tuning. The Cadence iA9HC can be “strapped” to another one in a Master/Slave configuration, or several of them can be daisy chained together and controlled by a single set of controls. Also, in addition to the ubiquitous Bass EQ control, the Cadence amp has a “Bass Focus” control which is used to apply very low frequency boost for sealed enclosure applications. Have a look at the graphs for a detailed look at how this is different, and cool! There is also a diagnostic LED which will alert the user to a potential problem, and a 0-180° phase switch. A remote mount level control is also included, so you can change the sub level from the driver’s seat. The nickel plated, solid brass cable connection terminals are large and beefy, as you’d expect on an amplifier capable of 2KW of power. The B+ and Ground terminals accept 1/0 gauge wire, and the speaker terminals provide dual connections for 8 gauge speaker cable. The wires are securely fastened with hex-head set screws. I took the clear bottom cover off, and poked around inside, and was quite impressed with what I found, considering the very reasonable price of the Cadence amp.

Tech

The power supply is the heart of any amplifier, particularly a big powerful Class D amp like this. The Cadence iA9HC is equipped with a pair of large toroidal transformers, and uses no less than 16 – 1000µF high speed, low ESR capacitors. Power supply switching and current delivery is taken care of by 12 large TO-247 case size HEXFETs. Devices of this type are typically capable of switching 50 amperes or more each, so there is no doubt that ample current will get delivered to the output stage. And speaking of the output stage, again I found abundant capacitance, with 4 large can 3300µF caps, and 8 more 470µF capacitors. The output devices are plentiful as well, with a total of 20 high current TO-220 case MOSFETs on hand to handle the toughest current loads.

The rest of the inside of the amplifier is also worth talking about, as the same sort of attention to detail was applied to often overlooked components like the output filter stage, which is critical to properly remove the high frequency square wave carrier. From the signal control to the protection circuitry, the amp is well built using traditional through-hole components, and heavy gauge copper PCB traces on the double sided PCB. An anti-thump circuit uses a high current relay to open the circuit to the loudspeakers until the amp is fully on and ready to play, and eliminates turn on and off noises. Control pots and switches are good quality as well, and were placed well, with the pots in the center of the holes in the end plate, and straight.

Listening

Connected to my 2 ohm reference system, I adjusted the crossover and set the bass EQ controls to flat. True to the claims, the amp does indeed turn on and off quietly, with no pops from the woofers. Beginning with some of my favorite drum recordings from the likes of Neil Peart, Ian Paice, Buddy Rich and Carmine Appice, I put the amp through the paces, listening at low levels for detail and later at very high volumes to see how much power it would really deliver. The overall sound from the Cadence amp was excellent, with very good control of the woofers and an obvious plethora of power. Moving on to some jazz and other tracks with acoustic bass, I also thought the amp had good timbre for a Class D design, and again the control and definition was excellent.

Because I was using a sealed woofer system,
I played with the Bass Focus control a bit, and
I was really pleased with the warmth it can add, particularly if your woofer system is a little shy on cone area. But be warned, this control can overdrive a woofer if your system isn’t up to it, and should be used with some common sense. Thankfully the folks at Cadence obviously realized this as well, and limited the amount of boost available.

Performance/Measurements

After my listening was done, it was time to move into the electronics test lab, and get the real performance numbers out of the amp. With published power ratings of 600, 1,000, and 2,000 watts at 4, 2, and 1 ohm respectively, I’m happy to report that the Cadence amp delivered power in excess of those numbers when fed with a 14.4V supply voltage.

Other performance measurements were also excellent; the amp has very good S/N (signal to noise) performance as well as good overall efficiency. If you drive it to full power with a sinewave and a 1 ohm load, it can draw almost 200 amperes, so if those conditions sound like you, prepare your electrical system accordingly. With a musical signal however, the average current draw is much lower, and the efficient design helps keep the current draw down, and minimizes amplifier heating as well. After all the full power testing and measurements were made, the amp was barely warm. Crossover and subsonic filters performed as advertised both using -24dB/Oct slopes. Output impedance was exceptionally low for a Class D amplifier at 0.002 ohms (lower is better) which is a testament to the output filter design, and perhaps helps to explain the good definition and woofer control I noted.

Conclusion

When I first wrote the next sentence, I was going to say that the Cadence iA9HC is an excellent amplifier for the money (which it is). But with performance as good as or in some cases much better than amplifiers costing twice as much, the Cadence iA9HC is simply an excellent amplifier, period! With a host of features that include a few really unique and useful ones, great sonics, and very good design and construction, if you’re in the market for a high power subwoofer amp, you owe it to yourself to give this powerhouse some serious consideration. I give the Cadence iA9HC two rockin’ thumbs up! Visit www.cadencesound.com

Polk Audio PA1200.1

Sun, 09 Nov 2008 18:43:48 -0500

The Polk Audio PA1200.1 is a 1,000 watt power amplifier. This unit has enough power to run a large subwoofer, due to the 1 ohm design. A powerful model in the PA product offering, this unit is a high-end product from Polk, designed specifically for use with the Polk SR series subwoofers. For a more mid-range amplifier, look at the PA500.4 or the PA400.1. The PA1200.1 comes with mounting hardware, including rubber isolation grommets and extra fuses. Made of anodized extruded aluminum, it weighs 24 pounds. The end caps are made of cast aluminum and are removable and the cover plate design hides all the wiring. The logo is in solid aluminum and comes with cobalt blue back lighting. This amplifier can be used with any available speakers. A remote control is included to control the subwoofer levels.

Features

14.4 Volts RMS not bridged at 1 kHz
- 4 Ohms = 400 watts x 1
- 2 Ohms = 800 watts x 1
- 1 Ohms = 1,200 watts x 1
Signal to noise is > 98 dbA
Input Sensitivity Range is 250 mV to 7.5 Volts
Input Impedance > 20k Ohms
Output Impedance is < 0.02 Ohms
Overall Frequency Response (-3 dB Points) is 20 Hz to 20 kHz main channel and 20 - 250 Hz sub channel
3 x 30 amp fuse, power and ground reversal, thermal and short, current overdraw and low impedance protection
The unit is 16 lbs and is 2 16/25" high x 15 13/50" wide x 10 1/4" deep or 6.71 cm high x 38.76 cm wide x 26.04 cm deep

Alpine PDX-4.150

Tue, 04 Nov 2008 13:21:48 -0500

The Alpine PDX-4.150 is a 4/3/2 channel density digital amplifier sporting 150 watts of power for 4 channels. It shares a uniform size with the rest of the series (10-1/8" Width, 7-9/16" Height, 2-7/16" Depth) making it easy to expand the system and stack them to save space. However, the Alpine PDX amplifiers cannot be installed in any manner other than parallel to the floor without voiding the warranty. Some of its features include a 4-Layer glass epoxy PC board, a non-fading pre-amp RCA output, adjustable gain control, a speaker quick connect plug, a subsonic (infrasonic) filter, STAR topology, protection circuits, a power/status LED, a low pass filter, and the same power output for 2Ω or 4Ω loads. The Alpine PDX-4.150, like the others in the series, is CEA-2006 compliant, meaning it passed the new system of testing and measurement for mobile audio amplifiers.

Features

150W x 4
Easy, flexible installation
60% smaller than previous models
Same power output for both 2Ω or 4Ω loads
Stackable with any model in series
10-1/8" Width, 7-9/16" Height, 2-7/16" Depth
4-Layer Glass Epoxy PC Board
RCA Output: Non-Fading Pre-Amp Output
Adjustable Gain Control

Alpine PDX-1.600

Tue, 04 Nov 2008 13:21:24 -0500

The Alpine PDX-1.600 is a mono power density digital amplifier that promises up to 600 watts of power, an average amount for the Alpine PDX series. Stackable with dimensions (10-1/8" Width, 7-9/16" Height, 2-7/16" Depth) matching all the other amps in the line, multiple PDX-1.600 (or any in the series) can be purchased and stacked discretely in the trunk or under a seat, saving space and maximizing sound. Wire hookups are located all on one side which help a lot with a clean installation. In terms of sound quality the PDX-1.600 has non-fading pre-amp RCA output, a crossover of 50Hz-200Hz (-24dB/oct) as well as the same power output for both 2Ω or 4Ω loads - the last being a high end feature among its peers.

Features

600 watts x 1
Easy, flexible installation
60% smaller than previous models
Same power output for both 2Ω or 4Ω loads
Stackable with any model in series
10-1/8" Width, 7-9/16" Height, 2-7/16" Depth
4-Layer Glass Epoxy PC Board
RCA Output: Non-Fading Pre-Amp Output
Crossover: Variable, 50Hz - 200Hz (-24dB / oct), Low-Pass
Adjustable Gain Control

Pioneer GM-D8400M

Tue, 04 Nov 2008 00:06:10 -0500

The Pioneer GM-D8400M is a one-channel class D amplifier based on an extra-compact class D circuit designed for extra-versatile installation. An upgrade from the GM-D7400M, the GM-D8400M supports an increased maximum power (1200w versus 800w). The GM-D8400M, however, maintains the GM-D7400M’s frequency response (10Hz0240Hz) and signal-to-nose ratio (100dB). The GM-D8400M also comes equipped with a Pulse Width Modulator that modulates the audio signal to offer a more fixed frequency, a selectable 50Hz bass boost that lets the user manually control the bass, and built-in-crossovers that correctly route big bass signals to the subwoofer. Priced at $299.95, an $80 increase from the $219.95, the Pioneer GM-D8400M is cited as an optimal solution for consumers seeking the functionality of the GM-D7400M combined with a greater power output.

Features

Output Power (4 Ohm, <=1% THD): 300W x 1
Output Power (2 Ohm, <=1% THD): 600W x 1
Signal to Noise (1 Watt into 4 Ohms): 80 dBA
Signal-to-Noise Ratio: 100dB
Peak Music Power: 1200 Watts
Number of Channels: 1
Load Impedance Capability: 2~8 Ohm
Continuous Power (4 ohm): 300W x 1
Continuous Power (2 ohm): 600W x 1
Frequency Response: 10Hz ~ 240Hz
Total Harmonic Distortion: 0.03%
Dimensions: 11-3/8" x 2-1/4" x 7-7/8"

JL Audio G6600

Sun, 02 Nov 2008 19:47:37 -0500

The JL Audio G6600 is a class A/B six-channel amplifier based on an Absolute Symmetry class A/B circuit. The only JL Audio amplifier with six channels, the G6600 packs up to 100w of power per channel, giving it a combined 600w threshold. The G6600 also maintains a frequency response of 10Hz-25kHz and a damping factor of >200 @ 4 ohm. Priced at only $499.99, the JL Audio G6600 is cited as being an affordable six-channel amplifier that comes with several features including fully-variable active crossovers, differential-balanced inputs, preamp outputs, and bass control features.

Features

Rated Power 14.4 V Stereo: 75 W RMS x 6 @ 4 ohm, 100 W RMS x 6 @ 2 ohm
Rated Power 14.4 V Bridged : 150 W RMS x 3 @ 8 ohm, 200 W RMS x 3 @ 4 ohm
Rated Power 12.5 V Stereo: 55 W RMS x 6 @ 4 ohm, 75 W RMS x 6 @ 2 ohm
Rated Power 12.5 V Bridged: 110 W RMS x 3 @ 8 ohm, 150 W RMS x 3 @ 4 ohm
THD at Rated Power: <1% THD, 20 Hz - 20 kHz
S/N Ratio: >104 dB referred to rated power (A-weighted, 20 Hz – 20 kHz noise bandwidth)
Frequency Response: 10 Hz – 25 kHz (+0, -1dB)
Damping Factor: >200 @ 4 ohm per ch. / 50 Hz, >100 @ 2 ohm per ch. / 50 Hz
Slew Rate: ± 22V / µs
Input Range: 200mV – 8V RMS
Dimensions (L x W x H): 17.70 in. x 9.25 in. x 2.50 in.

JL Audio 250/1v2

Fri, 31 Oct 2008 02:10:30 -0400

The JL Audio 250/1v2 is a class D monoblock subwoofer amplifier based on a high-damping class D circuit that utilizes discrete control circuitry and feedback loop designs for greater power and dampening. The first amp in the JL Audio Slash v2 series, the 250/1v2 offers a relatively weak power output of 250w at 1.5-4ohms. However, it must be noted that the 250/1v2, although considered weak, is priced at $429.99, much lower than its competitors such as the $699.99 JL 500/1v2 and the JL $1099.99 1000/1v2. In addition, the Audio 250/1v2 features a variable boost up to +15dB, a defeatable 24dB infrasonic filter, and a signal-sensing turn-on capability that permits amp operation without a remote lead.

Features

Rated Power: 250 W RMS @ 1.5 ohm-4 ohm (11V-14.5V)
THD at Rated Power: <0.05% @ 4 ohm
S/N Ratio: >95dB below rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth)
Frequency Response: 5 Hz – 250 Hz (+0, -1dB)
Damping Factor: >500 @ 4 ohm / 50 Hz
Input Range: Switchable from 200mV-2V RMS to 800mV-8V RMS
Dimensions: (L x W x H): 10.25 in. x 9.25 in. x 2.27 in.

JVC KS-AX4504

Wed, 21 Jan 2009 01:57:49 -0500

The JVC KS-AX4504 is a compact Class AB car amplifier that features a Pulse Width Modulated regulated MOS-FET power supply and thermal, short-circuit, overload, and DC-offset protection circuitry. The third of three JVC KS-AX amplifiers, the KS-AX4504 is an upgrade from the JVC KS-AX4302 in that it offers 2-, 3-, and 4-channel operation. In all other ways, however, the KS-AX4504 is an exact duplicate of its peer. For instance, the KS-AX4504 also offers a power output of 600w, a sensitivity of 80dB, and a frequency response of 5 – 50,000Hz. In addition the KS-AX4504 boasts a speaker-level input terminal connection, gold-plated RCA input terminals, an LED indicator, a variable bass boost control, a variable speaker input control, and a variable RCA input level control. The JVC KS-AX3002 retails for slightly more expensive $199.95 (versus 169.95) and comes with a 1 year limited warranty.

Features

Class AB Amplifier
MOS-FET Power Supply
Protection Circuitry
2, 3, & 4 Channels
Maximum Power Output: 600w
Sensitivity: 80dB
Frequency Response: 5 – 50,000Hz
Speaker Level Input
Gold-Plated RCA Input
LED Indicator
1 Year Limited Warranty

JVC KS-AR8002D

Sat, 17 Jan 2009 23:40:53 -0500

The JVC KS-AR8002D is a 2-channel digital car amplifier from JVC's Arsenal AR8000 series for 2009. The amplifier features a MOSFET power supply and pre-output stage to provide a RMS power output of 170 watts per channel (at 2 ohms) and wide frequency response of 5-40kHz. It is designed quite small allowing flexiblility of installation and has an illuminated panel to make it easily viewable regardless of where it is placed in the car. The KS-AR8002D can be externally bridged making it possible to use it along with another amplifier for twice the power. It offers numerous controls including variable input RCA level and bass boost and includes protected anti-pop circuitry for long-lasting performace. The amplifier is the digital upgrade to JVC's KS-AR7002 from it's Arsenal AR7000 series.

Features/Specs

PWM-regulated MOS-FET power supply
MOS-FET Output stage
Max power output of 600W
RMS Power Output: 150W RMS x 2 at 4 ohms, 170W RMS x 2 at 2 ohms, 300W RMS x 1 at 4 ohms bridged
2- or 1-Channel Operation
Full Range digital Class D
Frequency Response: 5–40kHz
Class-D circuit
Variable input RCA level control
Variable bass boost control
Gold-plated RCA jacks
Gold-plated block terminals
Thermal/short circuit/overload/DC offset protection circuitry
Anti-pop circuit
Control panel on top/cover
Blue LED illumination
Dimensions: 10'' x 2.5'' x 7.25"

JL Audio G4500

Sun, 02 Nov 2008 19:47:32 -0500

The JL Audio G4500 is a class A/B four-channel amplifier based on an Absolute Symmetry class A/B circuit. The G4500 is the only four-channel amp in the G series, and is in direction competition with the Audio Slash V2’s 300/4v2 and 450/4v2, and the Audio HD’s HD600/4. The G4500 maintains lower power (125w per channel max versus 150/300) and an inferior frequency response (10Hz-25kHz versus 5Hz-30kHz), but supports the same damping factor (>200 @ 4 ohm). The G4500 also comes equipped with fully-variable on-board crossovers and differential-balanced inputs. Priced at $349.99, the JL Audio G4500 offers tremendous savings versus the $559.99 300/4v2, the $699.99 HD600/4, and the egregiously expensive $849.99 450/4v2, while still maintaining almost the same functionality and capability.

Features

Rated Power 14.4 V Stereo: 80 W RMS x 4 @ 4 ohm, 125 W RMS x 4 @ 2 ohm
Rated Power 14.4 V Bridged : 160 W RMS x 2 @ 8 ohm, 250 W RMS x 2 @ 4 ohm
Rated Power 12.5 V Stereo: 60 W RMS x 4 @ 4 ohm, 90 W RMS x 4 @ 2 ohm
Rated Power 12.5 V Bridged: 120 W RMS x 2 @ 8 ohm, 180 W RMS x 2 @ 4 ohm
THD at Rated Power: <1% THD, 20 Hz - 20 kHz
S/N Ratio: >104 dB referred to rated power (A-weighted, 20 Hz – 20 kHz noise bandwidth)
Frequency Response: 10 Hz – 25 kHz (+0, -1dB)
Damping Factor: >200 @ 4 ohm per ch. / 50 Hz, >100 @ 2 ohm per ch. / 50 Hz
Slew Rate: ± 22V / µs
Input Range: 200mV – 8V RMS
Dimensions (L x W x H): 13.80 in. x 9.25 in. x 2.50 in.

Alpine MRP-M1000

Tue, 04 Nov 2008 14:40:06 -0500

The Alpine MRP-M1000 is a mono channel power amplifier with 1000 watts x 1 or 600 watts x 4. With a sleek black design the amplifier is an unobtrusive addition to any vehicle. It has a wide variety of features such as gold plated RCA input connectors, STAR topology, subsonic filter, non-fading pre-amp output, a power/status LED, a low pass filter, MOSFET power supply, CEA-2006 compliant, gold plated screw terminals, selectable bass boost, speaker- and preamp-level inputs, and a 1 year warranty The system is easy to install and upgrade - the level inputs and additional end caps to protect wiring make sure of that. The power of the unit means that it could overheat which is why it includes thermal management control which saves energy and increases the longevity of the system.

Features

1000W x 1 (2 Ohms)
600W x 4 (4 Ohms)
Crossover: 50Hz-200Hz, -24dB/oct (Low-Pass/High-Pass)
Non-Fading Pre-Amp Output
Blue LED Power Indicator
Thermal Management Control
Gold Plated RCA Input Connectors
STAR board circuitry
Over-Current, Over-Voltage, and Thermal Protection

Alpine MRP-F600

Tue, 04 Nov 2008 14:40:00 -0500

The Alpine MRP-F600 is a 4/3/2 channel power amplifier that delivers 100 watts x 4 and 300 watts x 2 at 4 Ohms, and 150 watts x 4 at 2 Ohms. It includes a variety of features such as gold plated RCA input connectors, STAR topology, subsonic filter, non-fading pre-amp output, protection circuits, a power/status LED, a low pass filter, MOSFET power supply, CEA-2006 compliant, gold plated screw terminals, selectable bass boost, speaker- and preamp-level inputs, and a 1 year warranty. Thermal management control is included to save energy and dissipate heat to create a high power system without risking long term functionality - very important for someone who wants to have their system last for a while. Ideal for a consumer who likes to have their system expandable, controlled, and stylish -- the Alpine MRP-F600 is decent, average cost option.

Features

4/3/2 Channel
100W x 4 (4 Ohms)
150W x 4 (2 Ohms)
300 x 2 (4 Ohms)
Crossover: 50Hz-400Hz, -12dB/oct (Low-Pass/High-Pass)
Non-Fading Pre-Amp Output
Blue LED Power Indicator
Thermal Management Control
Gold Plated RCA Input Connectors
STAR board circuitry

JL Audio G2250

Sun, 02 Nov 2008 19:47:28 -0500

The JL Audio G2250 is a class A/B two-channel full-range amplifier based on an Absolute Symmetry class A/B circuit that utilizes discrete control circuitry and feedback loop designs for great power and dampening. The G2250 is essentially a two-channel version of the Audio G1300. There are a few differences though. For instance, the G2250 actually offers a reduced power of 160w max (versus 300w). However, it maintains the G1300’s frequency of 10Hz-25kHz and dampening factor of >200 @ 4 ohm. Due to the balancing (up and down) factors, the Audio G2250 is priced exactly like the G1300, at $249.99. It’s cited as a solid solutions seeking the functionality and affordability of the G1300 in a two-channel model.

Features

Rated Power 14.4 V Stereo: 80 W RMS x 2 @ 4 ohm, 125 W RMS x 2 @ 2 ohm
Rated Power 14.4 V Bridged : 160 W RMS x 1 @ 8 ohm, 250 W RMS x 1 @ 4 ohm
Rated Power 12.5 V Stereo: 60 W RMS x 2 @ 4 ohm, 90 W RMS x 2 @ 2 ohm
Rated Power 12.5 V Bridged: 120 W RMS x 1 @ 8 ohm, 180 W RMS x 1 @ 4 ohm
THD at Rated Power: <1% THD, 20 Hz - 20 kHz
S/N Ratio: >104 dB referred to rated power (A-weighted, 20 Hz – 20 kHz noise bandwidth)
Frequency Response: 10 Hz – 25 kHz (+0, -1dB)
Damping Factor: >200 @ 4 ohm per ch. / 50 Hz, >100 @ 2 ohm per ch. / 50 Hz
Slew Rate: ± 22V / µs
Input Range: 200mV – 8V RMS
Dimensions (L x W x H): 9.80 in. x 9.25 in. x 2.50 in.

Kicker ZX400.1

Thu, 30 Oct 2008 15:03:33 -0400

The Kicker ZX400.1 amplifier is one of the more cost effective amps in the Kicker ZX mono series. It is outfitted with differential RCA inputs which helps eliminate whines and trashy noise, improving the sound quality and the overall enjoyment of the music. The ZX mono-channel amplifier Kicker ZX400.1 has 400 watts protected by a heat sink. With 24dB/octave low pass electronic crossover, a 24dB/octave subsonic filter fixed at 25 hertz, and 18 decibels of boost centered at 40 hertz the Kicker ZX400.1 is an average part of the ZX series. Included is a remote bass control to make it easy to work with no matter where it is installed. The ZX mono amplifier series contains 300 watt amplifiers all the way up to 2,500 watts, a huge range of diversity giving the consumer the ability to choose exactly what they are looking for. With the ZX400.1 the consumer gets a lower power amplifier (but not the lowest) for a lower cost.

Features

Differential RCA inputs
Automatic turn-on modes
400 watts
18 decibels of boost
Remote bass control
24dB/octave subsonic filter
24dB/octave low pass electronic crossover
Automatic Turn-On modes: DC Offset, Audio Signal Sense, +- 12V (Remote)

Boss NXD5500

Tue, 10 May 2011 13:51:13 -0400

Polk Audio MOMO C500.1

Sun, 09 Nov 2008 18:40:39 -0500

The Polk Audio C500.1 is a one channel, 500 watts power amplifier. The unit has a total dynamic power of 970 Watts. The most power in the MOMO high performance product offering, look at the C300 or the C400 to get less power. The C500.1 has a signal to noise rate greater than 105 dbA. Made of industrial strength extruded aluminum, it weighs 10 pounds. The end caps are made of cast aluminum and are removable and the cover plate design hides all the wiring. This amplifier can be used with any available speakers. A remote control is available separately to control the subwoofer levels.

Features

1 Channel
975 Watts Total Dynamic Power, all channel driven
When the amplifier is 14.4 Volts RMS not bridged at 1 kHz
- 4 Ohms for 350 watts x 1
- 2 Ohms for 500 watts x 1
Signal to noise is > 105 dbA
Remote Gain is 0 to -30 dB
Input Impedance > 10k Ohms
Output Impedance is < 0.02 Ohms
Overall Frequency Response (-3 dB Points) is 10 Hz to 200 Hz
Power and ground reversal, thermal and short, current overdraw and low impedance protection with automatic stand-by mode
The unit is 12 lbs and is 2 1/2" high x 11" wide x 9 3/4" deep or 6.35 cm high x 27.94 cm wide x 24.77 cm deep