Well i was in the middle of watching tv when suddenly there is a popping noise and the sound from my entire system stops. I can still change settings on my 970 but no output audio-wise. I have yet to connect any video to it. the 7125 and 970 still turn on. I can control the 970 but it won't allow me to control the volume. Any idea whether this is the 970 or amp?

oh BTW, The audio input is coming from an analog signal from my tv output ( which i noticed was a little loose but i tightened it back and still get nothing.