Humming Sound coming from Stereo Speakers - AVS Forum
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post #1 of 5 Old 10-16-2011, 10:24 PM - Thread Starter
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I have a set of older stereo speakers hooked up to an older amplifier (1990's) and am experiencing a low humming noise coming from the speakers when i turn the volume all the way down on the amplifier. I have the auxiliary rca cables connected to my TV. When the tv is turned off the humming still happens. Its not that noticeable but it annoys me that its there. Any suggestions on how to fix this? Is it because i'm using old equipment(quality of speakers are still good)? The wires are just hanging behind my tv stand maybe its making an interference being so close to all the other wires. Help would be appreciated! Thanks.

Also, my right speaker goes out when I put on Low Cut. Any help on this also?

edit: I also read that a Ground Loop Isolator may help?
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post #2 of 5 Old 10-17-2011, 02:13 AM
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It's a ground loop caused by the antenna connection of your tv.
You need to have a filter inserted into the antenna cable, which breaks the ground loop.
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post #3 of 5 Old 10-17-2011, 07:04 AM
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Quote:
Originally Posted by xzmk07 View Post

I have a set of older stereo speakers hooked up to an older amplifier (1990's) and am experiencing a low humming noise coming from the speakers when i turn the volume all the way down on the amplifier. I have the auxiliary rca cables connected to my TV. When the tv is turned off the humming still happens. Its not that noticeable but it annoys me that its there. Any suggestions on how to fix this? Is it because i'm using old equipment(quality of speakers are still good)? The wires are just hanging behind my tv stand maybe its making an interference being so close to all the other wires. Help would be appreciated! Thanks.

Also, my right speaker goes out when I put on Low Cut. Any help on this also?

edit: I also read that a Ground Loop Isolator may help?

You could try removing the power-plug of the amp from the wall socket, flipping it and re-connecting it. I remember doing this solved the same problem for me in the '90s. If the plug doesn't fit because it's spades are of a different size, you may need an universal adapter which accepts any size between the plug and the wall-socket.
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post #4 of 5 Old 10-17-2011, 07:42 AM
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unplug the cable line that comes into the cable box. it (the hum) should disappear. if it does buy this..

http://www.rackmount-devices.com/mai...?page=015-8700

just plug that inline before your box..

problem solved...

My first DIY project. A dual, dual opposed setup


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post #5 of 5 Old 10-17-2011, 07:52 AM
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... or try this from the TV to the receiver.
http://www.radioshack.com/product/in...ductId=2062214
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