I think I might have been vague...
Does the noise happen on all sources? If it's just one source try using different cables. Is it in one channel or both? If that doesn't work try a different input on the receiver. Are you using optical?
As you can see there are a lot of variables here.


M80's VP150 QS8's Earthquake SuperNova MKV-15
Integra DTR-7.4 Outlaw 755 Outlaw M200's Outlaw ICBM