Hello RP

Some receivers require that you calibrate the speakers for each source. In other words, just because you have calibrated the receiver for DVD doesn't mean it will 'take' for your HD cable box source.

Just a thought. I always found Sony receivers have a decent processing section but weak amps. Maybe you should check out the manual again.

G'luck

Enjoy the Music. Trust your ears. Laugh at Folks Who Claim to Know it All.