I just tried to play some music using aux mode and optical 2 and got no sound.
I use this mode for my Itunes air express....thought it might be the source, so I tested Itunes and it was working fine on my macbook. Then I tried a standard TV transmission using optical 1 and got no sound, even after turning the unit off and on. Also, I was getting no response from the volume button on the remote or the unit itself. Then I tried the digital coax CD mode and it worked. So, I turned everything off and on again, and all is working. But, this is bothering me.....never had anything like this happen on my older multi mode Yamaha and it was only $400, and I've only had the 970 for a month or so.....is this an indication of more problems to come and the no sound problem everyone is talking about? A couple of times I also experienced a stutter in the audio when I initiated recorded programing off of my DVR....something else the Yamaha never did. For a new product, this is troubling.
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B&W 804s mains
B&W HTM4 Center
Outlaw 990
Anthem MCA 30 AMP
Audiosource Stereo AMP
Monitor Radius 180 surround
Comcast DVR
Sony HX929 LED TV
Apple Air Express/Apple TV