Summary: Onkyo use to make quality products, but I've had 2 TX SR706's and both have needed service. The first one to break was covered under warranty, but there are so few service centers that most people will be forced to ship their product. The second unit just stopped working recently (powers up and then shuts off.) Forget customer service. It doesn't exist with Onkyo. The corporate office in NJ cannot be reach by phone and they don't reply to emails.
Summary: in and out of service center (over an hour away)...they couldn't replicate the problem so they couldn't fix it. turns out it's a known issue between the onkyo unit (and others) and my samsung tv making it unable to pass video signal via hdmi. the failure of the unit is one thing, but their inability to provide customer service to fix it means i'll never buy another onkyo product. such a shame.
Summary: This unit was well reviewed and seemed to offer good price performance. That was my assessment before I bought it. I would not buy this unit again. I liked the 4 HDMI inputs which is why I bought the unit. Problems developed. Strike 1: It turns out the upscaling is not recommended for THX. So what's the point of a THX unit if it doesn't work with a key feature. Strike 2: It also clicked heavily like there is some relay going off.