Have you verified your outlet has a proper ground? You can get an inexpensive socket tester.
And make sure it's 120vac on the button. I think it's either broken or if there is a fuse pull it clean the fuse holder and install a new fuse.
No matter what plug it into a maintainer/cleaner. I use 4 Triplites 2400 in my systems with a tube of clear silicone pumped around the
transformer to get rid of 90% of the noise and ALL the AC trash that comes trough from time to time. I did have a router that was
plugged in another room that caused a problem and Laptops are know to add noise. They are put on a dirty plug anyway.
I would turn every breaker off except that room and a known room that runs on the opposite leg. Swap L1 for L2 with an extension cord
if you have to. He doesn't need a 20 amp receptacle to JUST test the the Leg he's using.
LED, the thing you plug in to dispense a room deodorizer can drive you nuts, unplug every thing in the rooms you use for power
and unplug everything in those rooms except, a maintainer, a NEW AC cable and hook up one speaker with a different speaker cable
and a different RCA or XLR. I've had at least 5 XLRs make a LOT of noise, RCAs countless time cheap RCAs made noise.
Plug one speaker in at a time and make sure all the cable are disconnected from the amp not the preamp, then add one speaker cable
then add one input cable. If either cable makes noise, swap with a different brand, zip cable will work fine or it could be the problem
A bad cable is a bad cable. No aluminum/copper clad in the system or cheap RCAs? Right.
I had a Mcintosh SS MC 501 make noise it had to be repaired. I bought it that way and it was 550.00 to repair, at a local dealer/repair
facility in Daily City.
Are you holding your tongue right?
Happy hunting.
