Hello,

I have a Model 7125 with three channels that crackle with static. The static/crackling noise is loud enough to hear at the seated position.

To test which component (amp, speakers, or speaker wires) may be causing the static I have everything unplugged from the amp with the exception of the speaker wires that are connected to the speakers.

The pre/pro and all other cables are unplugged from the 7125.

The three channels that make the noise are the two left and right surrounds, and the left back surround.

I ruled out the speakers and the speaker wires as the culprit. I did so by swapping a quiet (non-static) speaker (Center) to one that makes static (Left Surround). When I did the static noise changed to the Center and the Left surround was quiet. I did this with the other two that make the static/crackling noise with the same results.

Is there something that can be done, or something I'm missing before sending it in for service?

Thanks for advising,
-Jim