cable causing interference with subwoofer

Robert Silge

Agent
Joined
Jan 8, 1999
Messages
43
I have a problem with interference in my subwoofer caused by my cable TV. I've read about this before (I believe somehow grounding is the source of the problem?) and the solution I found was to get two simple parts from Radio Shack http://www.radioshack.com/product.as...5Fid=15%2D1297 and http://www.radioshack.com/product.as...5Fid=15%2D1230 . If you put these back to back the noise was eliminated. HOWEVER, this caused all cable channels above channel 50 or so to be incredibly bad as far as static in the picture and sound. If we plug the cable straight into the wall without the transformer thingies the channels are fine, but the subwoofer buzzes.

Is there another solution? Thanks.
 

Wayne A. Pflughaupt

Moderator
Premium
Joined
Aug 5, 1999
Messages
6,585
Location
Corpus Christi, TX
Real Name
Wayne
You might try this Dayton Video Isolation Transformer from Parts Express.

There are other things you can check, too. Make sure your incoming CATV feed is grounded to the electrical stake at the breaker box. Also, make sure the sub is plugged into the same outlet as the rest of your equipment (the wall, not a power strip).

Regards,
Wayne A. Pflughaupt
 

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