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
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.
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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.