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#27146 - 12/07/03 07:20 PM Subwoofer Hum
g_hunt Offline
regular

Registered: 12/07/03
Posts: 7
I have a Cerwin Vega sub that hums all the time. I found you site tonight and tried a few things. The noise comes from my cable TV. I went outside and cleaned the ground cable. Nothing happened. I went and bought 2 70-300 transformers and nothing happened.
When the cable is hooked up the sub will not go onto standby.

Anyboby have other suggestions

Regards,

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#27147 - 12/07/03 07:51 PM Re: Subwoofer Hum
pmbuko Offline
shareholder in the making

Registered: 04/02/03
Posts: 16297
Loc: Leesburg, Virginia
Have you tried plugging your subwoofer into a different outlet, preferably on a separate circuit?
_________________________
"I wish I had documented more…" said nobody on their death bed, ever.

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#27148 - 12/07/03 07:52 PM Re: Subwoofer Hum
g_hunt Offline
regular

Registered: 12/07/03
Posts: 7
I have had all the equipment pluged into a power bar and have also had the sub pluged on the other side of the room

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#27149 - 12/07/03 07:57 PM Re: Subwoofer Hum
2x6spds Offline
connoisseur

Registered: 03/16/02
Posts: 2726
Loc: CA, USA
If the noise is coming from the Cable TV, try an isolation transformer. Check out the Calrad 75-504
_________________________
Enjoy the Music. Trust your ears. Laugh at Folks Who Claim to Know it All.

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#27150 - 12/07/03 08:01 PM Re: Subwoofer Hum
g_hunt Offline
regular

Registered: 12/07/03
Posts: 7
Where would I pick up one of these units and do you know what the cost would be?

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#27151 - 12/07/03 08:05 PM Re: Subwoofer Hum
2x6spds Offline
connoisseur

Registered: 03/16/02
Posts: 2726
Loc: CA, USA
Try Marvac Electronics if you're in Southern California. About $8.00.
_________________________
Enjoy the Music. Trust your ears. Laugh at Folks Who Claim to Know it All.

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#27152 - 12/07/03 08:07 PM Re: Subwoofer Hum
g_hunt Offline
regular

Registered: 12/07/03
Posts: 7
I wish! its -10c tonight so im a little further north.
Toronto Canada

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#27153 - 12/08/03 05:29 AM Re: Subwoofer Hum
Hawkson101 Offline
devotee

Registered: 11/06/03
Posts: 359
Loc: wilmette illinois
it may be a grounding issue.
check for a grounding outlet/wire
_________________________
Once You Pop You Can't Stop

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#27154 - 12/08/03 10:01 AM Re: Subwoofer Hum
JasonG Offline
local

Registered: 04/29/02
Posts: 216
Loc: central Ohio
If the sub has a three-prong plug, you could try one of those two-prong "cheater" adaptors. That worked for my Hsu.

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#27155 - 12/08/03 05:17 PM Re: Subwoofer Hum
alan Offline
connoisseur

Registered: 01/29/02
Posts: 3191
Loc: Toronto/New York/Dwight
Hi g_hunt,

See my answer to "Speaker Hum" (Curtis and Kevin). If you are on Rogers' cable system in Toronto, you have to keep complaining until the guy comes and installs an earth ground--if nothing else works.

Regards,
_________________________
Alan Lofft,
Axiom Resident Expert

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