The static can be heard even from hi-end product like Red Rose Music’s $7k amp paired with their $8k speaker. It came from improperly located IC cables coming out of CD player. Besides the wire being inadequately shielded, it was running parallel with the power cord. In about half hour into auditioning, the static sound started. The store manager said the power cord and IC cables should run perpendicular to each other. Better yet, keep them as far away from each other as possible (remember soundhoud’s advice?). I’m not sure why they didn’t set it up that way to begin with but that’s in a separate thread (Favorite Demo).

See if this is helps with yours.