Experience emilinating Ground Noise?


I need help gettig rid of the various noises that plague my McIntosh system through my loadspeakers; I have an MX130 pre-amp, and MC206 6 channel power amp, a McIntosh CD player, as well as a Panasonic DVD player recorder, and a cable box processor. I purchased a Monster HTS 5100 which did not get rid of the various buzzes that come through my speakers, but I did learn that when my voltage exceeds 120 the noises start. When it hits 125 volts it sounds like I'm being attacked by a plague of locusts, it's very noisy. Initially I had some luck getting rid of noise by eliminating the ground phugs, but this was only a temporary fix. Would love to hear from anyone with experence solving this sort of issue.
crest
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various companies make a device for cable boxes, this is most times the biggest culprit. To test this just remove the cable to see if most or all of the buzz flys away.
Jensen Transformers, Inc., 9304 Deering Ave. Chatsworth, CA 91311
Toll Free Order Line: (866) 476-6291 Voice: (818) 374-5857 Fax: (818) 374-5856

Model VRD-1FF

http://www.jensen-transformers.com/iso_vid.html

Worked for me.