I'm suddenly getting sporadic and severe static through our receiver. I've tried different channels, using SAT/TV & DVD inputs. It just comes and goes so I'm not even sure what to look for as a problem. When I go right through the TV's volume, bypasssing the receivers and Bose speakers everything's fine. Any suggestions?
Could be the wiring to your speakers from your receiver. Make sure you have good connections, the guage of wire you are using isn't to big to fit tightly in the connection, and that no pieces of the exposed speaker wire is touching the back of the receiver or speaker.
After that, if you are still getting the static, try connecting a different receiver to the speakers. This will help determine if your problem is in the speaker/wiring or in the receiver.
If it isn't your speaker wires as suggested above it would be necessary to provide additional information such as make and model of all of the components.
Oops, I see the model of the receiver in the subject line. What would help at this point would be if this static occurs while listening to the onboard tuner (AM/FM).
If not working open the cover with the amp powered then with a plastic tip press on each part of the pre-amp board to found a bad soldering or defect part!