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excessive hum-buzz in speakers

I have a sony 400cd ES changer connected to a classe cp35 preamp which is connected to a sunfire stereo amp which feeds a set of carver alIII's

The classe has an mit a/c cord and my whole system is connected to two panamax 1000's which connect to a hospital grade wall switch.

I also put those funky cardas rc plugs on every unused rca input connector on the classe and the sunfire.

But still I have some serious hum coming from the speakers.
Before, when I only had my yamaha rxv 2095 with the pre-out mains going to a carver tfm35x and a pair of psb golds, my system was relatively quiet. Although the overall sound has improved, the humming is driving me CRAZY!!!

Please help!!!
elmexica215a
jeffloistarca
1,004 posts
 
I had a similar problem, couldn't get the damned buzzing to stop. It was driving me crazy! I switched from a 25' run of single-ended interconnect (preamp to amp) to a 25' run of Goertz Micropurl copper balanced interconnect The buzzing went away! Completely. Thank goodness, it was beyond irritating. From what I can tell, my single ended cable was picking up all kinds of garbage, acting like a very effective antenna for the nasties. Food for thought at any rate. Jeff
greengroup
1 posts
 
I am curious about the actual line conditioners or similar products, Is it's sole purpose basic like in car audio a crossover or something related? Please educate me on this.
ampzilla747
28 posts
 
usually if all your equipment is running on the same outlet,you wont get ground loop problems,they are caused by differences in potential,between different outlets!i also had a problem with a loud hum,i thought my amp was going out but it turned out to be the cheap banana plugs i was using at the back of the amp!got rid of them, bare wired them in,and tada!no noise,well,except from my frayed p.s audio cable from x-former to preamp.but using my thalia now,its DEAD silent!!!
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