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Audiophile novice needs your expert opinion

I recently purchased an Acurus 125x5 for my home theatre system.I love the amp,but I have a small humm-buzz in every channel(speaker) My last system I had a Classe CA-100 pre-outted for my front channels and the reciever amplifying the center and rears,and it was dead quiet no humm.After experimenting I found it(the humm-buzz)was coming from my cable TV connection at the wall.(very close to the outlet for my HT)If I disconnect the cable line the humm-buzz stops.What is this from? And what can I do to stop the humm-buzz? I would appreciate any help. Happy Holidays- John
krelldog
swampwalker's avatar
swampwalker
5,138 posts
 
You have got a ground loop. You can get a ground isolation transformer for Radio Shack for cheap or a better made but not necessarily more effective one from Mondial (called Magic) or from Audioadvisors (made by MIT). Our you can try a cheater plug (3-prong adapter) on the amp.
kennyt
1,226 posts
 
John, I had a similar problems with Acurus amps (A250 and a 200x3)... it's a ground problem. I managed to solve it by running ground lines from every component to the screw in the outlet the components were plugged into... It seems the cable wire is truly a definitive ground, so the cable folks tell me, so by bettering the rest of your systems ground you should be OK.

Good luck!
sattothestars
233 posts
 
Get yourself the "magic box" from Aragon/Acurus/Klipsch(any Klipsch/Aragon dealer can order it) and it will solve your problem.You shoud be able to get it for around 100.00.
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