Rob,

Thanks for the reply. I have an Integra DTR 9.9 receiver. It was new this last summer with my Axiom speakers (M80's, QS8's VP150 and EP500) that followed in Sept or October. My first amp had a problem of making a hissing sound at times when everything in my system was off. I was sent a replacement amp around Christmas and this one has the problem of going silent. I read the thread you guys mentioned.

I had set my EP500 up by setting the volume level at about 25% and then running the audyssey set up in the receiver. This resulted in a -2.0 level being sent to sub.

Last night I set the volume level to about 1/8th and re-ran audyssey which now gives me a +4.0 level being sent to sub. The sound is the same so I will see if this increased level to sub will keep it from having the problem.

Out of curiosity, how did you rule out the cable. Did you try another?

Steve