Ah, I just re-read the thread, so you are indeed having problems with both speakers. That makes things much trickier. I'm not sure what could cause this problem on the receiver end. Talk to Axiom for sure and see if they can do some troubleshooting for you. If it is not successful then you would have no other choice to send both of the QS8's back to Axiom for replacements. How old are these speakers?

I’m armed and I’m drinking. You don’t want to listen to advice from me, amigo.

-Max Payne