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Help my MonsterPower HTS3500 is humming

This is so weird. I just moved my audio set-up to another room in the house. I plug my Meridian 508.24 and my Conrad-Johnson PV12 preamp into the MonsterPowerHTS3500. My Bryston 4B-ST is plugged into the wall by itself. Now, when I turn the pre-amp on a hum starts to come out of the powercenter. Also, when I turn the LIGHTS on, a different hum starts to come out of the powercenter. Now the light is on a dimmer switch, and as I turn the switch, the hum changes pitch and intensity. Can anyone tell me what is going on? Thanks.
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Showing 1 response by kennyt

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kennyt
1,226 posts
 
I had a similar problem with my system when I added amps to a receiver, it was completely eliminated by plugging into a circuit without the dimmer. (or just replace the dimmer with a regular switch, or replace the light//move it if it has a dimmer on the light) (Halogen torchete's are famous for this type of stuff..) It seems they make a huge amount of AC noise by shedding current, this sounds like your problem.

How to sell the wife on the no dimmer deal is another issue.
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