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Sub emits low hum/buz
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Joined: Aug 2005
Posts: 16
frequent flier
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OP
frequent flier
Joined: Aug 2005
Posts: 16 |
Hello, I have the epic midi 125 system with the ep125 sub. I have had this system for many months now and just noticed a low hum from my sub. What can I do to fix this buz sound...
thanks, jon
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Re: Sub emits low hum/buz
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Joined: Aug 2005
Posts: 16
frequent flier
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OP
frequent flier
Joined: Aug 2005
Posts: 16 |
I got rid of the buz. I had to unplug my tv audio from my receiver. I guess I can't have stereo when watching tv...that sucks.
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Re: Sub emits low hum/buz
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Joined: Jan 2004
Posts: 13,848 Likes: 14
shareholder in the making
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shareholder in the making
Joined: Jan 2004
Posts: 13,848 Likes: 14 |
There are other options, that I'm sure others will offer advice. I don't have such problems with my EP500 and front projection environment.
M80s VP180 4xM22ow 4xM3ic EP600 2xEP350 AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85
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Re: Sub emits low hum/buz
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Joined: May 2003
Posts: 18,044
shareholder in the making
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shareholder in the making
Joined: May 2003
Posts: 18,044 |
Ye olde ground loop problem. Others will be along shortly with advice...
I am the Doctor, and THIS... is my SPOON!
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Re: Sub emits low hum/buz
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Joined: Jun 2003
Posts: 6,833
axiomite
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axiomite
Joined: Jun 2003
Posts: 6,833 |
Here is an article by Alan that covers ground loops. As a temporary fix you could try a cheater plug. If you try this make sure not to connect it to the cover screw, you want to lift the ground.
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Re: Sub emits low hum/buz
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Joined: May 2002
Posts: 10,654
shareholder in the making
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shareholder in the making
Joined: May 2002
Posts: 10,654 |
Jon, the fact that unplugging the TV audio got rid of the hum indicates that it's most likely a ground loop related to a cable TV input. You can buy one of the cable ground loop isolators. In the meantime, you can try to partially remove the RCA plug so that the center conductor still makes contact and transmits the TV sound, but the outer shield doesn't make contact and carry the hum into your receiver.
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Enjoy the music, not the equipment.
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Re: Sub emits low hum/buz
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Joined: Jan 2002
Posts: 3,270
connoisseur
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connoisseur
Joined: Jan 2002
Posts: 3,270 |
Hi jonn21, As JohnK mentioned, your incoming video signal from cable TV is almost always the source of subwoofer/TV/receiver ground loops. Here is a link to Axiom's ground isolator, which goes between your incoming cable-TV feed and the set-top box or your TV's cable input. http://www.axiomaudio.com/groundisolator.html The ground isolator causes no degradation of digital or HD digital services. However, it cannot be used with satellite TV feeds of any kind. By the way, your cable system may supply you with one of these if you complain. I've heard of one that did.
Alan Lofft, Axiom Resident Expert (Retired)
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