I read a lot of audio boards as I pursue this other obnoxiously exspensive hobby since I am more than happy with my rig these days and have never ever heard of such a thing. My guess is is that it is not the wire but something else. Personally, I would have them looked at. You should consider one of the new digital lines of receivers as well to replace that Yamaha! Loving my XR-50, and my XR-45 is in Boulder at Bolder Cables getting the 1k mod job as we speak, with full bybee's to boot!