Excerpt: I am very proud to be an owner of Denon AVR 689 receiver for almost two years now. I would say that this is a one of a kind receiver. It has a very good sound which delivers real and rich sound quality.
Summary: I knew when I bought this unit that I could not get sound over HDMI so I bought the digital cable (better sound quality anyway from what I was told). This reciever is excellent and replace a old Kenwood that served me well for many years (8 to be exact). Very satisfied with sound quality and ease to setup. If HDMI sound is important to you stay away. Otherwise great product for the $$$$.
Summary: This receiver has 3 HDMI inputs but will not play the audio from them. It is a great receiver in every other way, but that missing feature is a total deal killer. Why spend so much money on a receiver that won't handle today's standard? My recommendation: Step up to the somewhat pricier . Denon AVR-789 630-Watt 7.1 Channel Home Theater Receiver , which offers that feature and more.
Summary: Overall, very dissapointed in this product. Denon is a good name and I've heard good things about Denon sound quality but this product just doesn't cut it. I purchased this product to use the Audyssey dynamic volume control to control those nasty high-volume commercials. Unfortunately, the sound in dynamic volume or multi-eq or dynamic EQ modes is absolutely terrible. It's muffled, boomy and contains no higher-midrange frequencies in the vocal ranges.
Summary: This reciever is every thing I expected and more.The sound quality from any source is exceptional,wether it's playing softley or cranked up loud the sound is clear and distortion free.I'm using optical and digital cable from my componets to the reciever and I could'nt ask for any better sound.
Summary: Disappointed...... I am a loyal Denon fan....I currently own the Denon AVR-4308 which gets 10 stars out of 10.... This received disappointed me ... the quality is there, the options are there, but no AUDIO over HDMI.......WHAT? Why spend $400 for an expensive hdmi switcher - which is what this becomes since you need audio to run through coax/optical. You can never say enough about the build quality, sound quality, and or feature set of Denon....