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JL Audio G4500

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.

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JL Audio G4500 1
MSRP $349.99
Release date November, 2008
Brand JL Audio
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Pros & Cons

ProSCORE
1 review
100
negative
mixed
positive
1 positive
0 mixed
0 negative

[i] How is the ProSCORE calculated?

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Pros:
Do you agree?
half the price for all of the same features
+1agreedisagree

10-25000Hz frequency response is still very good
+1agreedisagree

adjustable crossover for fine tuning a custom system (2 options, apply separate settings to two pairs of speakers)
+1agreedisagree

protection circuitry with status indicator lights
+1agreedisagree

Cons:
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Details

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.

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This report was started November 2, 2008 at 7:47 pm by vsaxena911
with the last edit occurring November 3, 2008 at 1:34 pm by Yale
This page has been viewed 966 times, with 17 edits by 2 contributors.
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Reviews

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Yale

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November 3, 2008
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ProSCORE
100
negative
mixed
positive
4 pros
0 cons
0 out of 1 people found this review helpful.

Pros

  • half the price for all of the same features
  • 10-25000Hz frequency response is still very good
  • adjustable crossover for fine tuning a custom system (2 options, apply separate settings to two pairs of speakers)
  • protection circuitry with status indicator lights

Cons

Did not agree with any cons

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This product is also known as:

G, 4500, G4500