Denon AVR-5800 AV Receiver The AVR-5800 may be the most iconic Denon AV receiver of all time. It debuted in 2000 to commemorate Denon's 90th anniversary and was the world's first 7.1 channel receiver, the first with DTS-ES Discrete 6.1, DTS-ES Matrix 6.1, and THX Surround EX (the forerunner of Dolby Digital Surround EX). Before the AVR-5800 arrived AV receivers, including the biggest flagship models, were all strictly 5.1 channel affairs. DTS ES and THX EX were the first six-channel codecs, with a single rear channel, but that surround channel was split to provide two rears and thus the need for 7 channel receivers. The AVR-5800 was a 7 x 170 watt design, and featured an IR and RF touch screen LCD remote, so you didn't have to point the remote towards the receiver to use it!
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