The Denon AVR-590 is a 5.1 channel home theater system and is the most affordable made available by Denon. It has 5 channels each with 75 watts of power and uses high quality 24-bit/96kHz A/D (analog/digital) converters for superior sound quality and is compatible with Dolby TrueHD, DTS-HD Master Audio and is one of the first receivers to include Dolby’s new Pro Logic IIz decoding, which provides front channel height effects, to dramatically increase the front soundstage for the ultimate surround sound experience. The Audyssey MultEQ room acoustic measurement and correction system uses up to six measurement positions to optimize the audio quality for your room and Audyssey Dynamic Volume and Dynamic EQ ensure no annoying volume jumps during commercials. There are three HDMI inputs and dual component inputs for ample HD connectivity and features HD upconversion to the HDMI output for a simple setup with one cable to your HDTV. You can also easily connect an iPod or iPhone with an optional dock giving you on-screen control.