I have a Boston Acoustics speaker system on my PC. Previously no hum; now, a bad hum.
I just moved to a new house. At old house, no hum, even when everything was plugged in and operational. Had the bass up to a nice, decent level -- no problem. Unplugged everything, packed it, moved to new house a scant 2 miles away. Set it all back up again, changed NO settings... and now I have a hum.
Here's the funny part. It has NOTHING to do with the little speakers; it has NOTHING to do with loose connections or a surge strip; it has NOTHING to do with being close to PC's power cord. Here's how I know: I took ONLY the subwoofer to a bathroom, plugged it directly into an AC outlet by itself, near no other electrical devices, and it hums. Badly.
Any thoughts or solutions?