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The following page was printed from RemoteCentral.com:
| Topic: | Subwoofer Ground Hum This thread has 61 replies. Displaying posts 1 through 15. |
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| Post 1 made on Monday February 28, 2005 at 20:36 |
Slimfoot Select Member |
Joined:
Posts: | October 2003
1,546 |
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Attempting to use Denon AVR 785 with Earthquake SUB80 subwoofer. When powered up there is a hum/buzz coming from the SUB80. Earthquake support suggests connecting a dedicated ground wire to the Denon AVR. Is there a correct way to do this?
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Sir, my concern is not whether God is on our side; my greatest concern is to be on God's side, for God is always right.
Abraham Lincoln
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| Post 2 made on Monday February 28, 2005 at 20:54 |
flandon Advanced Member |
Joined:
Posts: | September 2004
803 |
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Does the hum go away when you detach the cable system?
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Flandon the mighty Dragon Fisher |
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| Post 3 made on Monday February 28, 2005 at 21:14 |
quest51459 Founding Member |
Joined:
Posts: | September 2001
197 |
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And are you usuing a shielded cable?
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| Post 4 made on Monday February 28, 2005 at 21:35 |
AHEM Select Member |
Joined:
Posts: | January 2004
1,837 |
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I'm with Flandon, I'd bet money that disconnecting the CATV eliminates the hum. Earthquake should know this!!!
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| OP | Post 5 made on Monday February 28, 2005 at 21:57 |
Slimfoot Select Member |
Joined:
Posts: | October 2003
1,546 |
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Dish Network, no cable.
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Sir, my concern is not whether God is on our side; my greatest concern is to be on God's side, for God is always right.
Abraham Lincoln
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| OP | Post 6 made on Monday February 28, 2005 at 21:59 |
Slimfoot Select Member |
Joined:
Posts: | October 2003
1,546 |
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Hmm... shielded, I'll try that.
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Sir, my concern is not whether God is on our side; my greatest concern is to be on God's side, for God is always right.
Abraham Lincoln
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| Post 7 made on Monday February 28, 2005 at 22:08 |
rmht Long Time Member |
Joined:
Posts: | August 2003
295 |
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What is it with the HD cable hum?!!!!!
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"I am extremely skeptical about the role of fruit in Newton's life." |
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| Post 8 made on Monday February 28, 2005 at 22:25 |
AHEM Select Member |
Joined:
Posts: | January 2004
1,837 |
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On 02/28/05 21:57 ET, Slimfoot said...
Dish Network, no cable. Is the subwoofer on the same electrical circuit at the receiver?
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| Post 9 made on Monday February 28, 2005 at 22:44 |
avis21 Long Time Member |
Joined:
Posts: | February 2004
92 |
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Did you try a "cheater plug" adapter that takes a 3 prong down to 2? I have seen it work.
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| Post 10 made on Monday February 28, 2005 at 22:49 |
rmht Long Time Member |
Joined:
Posts: | August 2003
295 |
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That works but kills the warranty (of the surge protection)and the safety
We know phase and same curcuit
My RF base stations explode with HD DVR's also
What is going on.
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"I am extremely skeptical about the role of fruit in Newton's life." |
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| OP | Post 11 made on Monday February 28, 2005 at 22:57 |
Slimfoot Select Member |
Joined:
Posts: | October 2003
1,546 |
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I've tried seperate circuits, even my next door neighbor's AC plug.
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Sir, my concern is not whether God is on our side; my greatest concern is to be on God's side, for God is always right.
Abraham Lincoln
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| OP | Post 12 made on Monday February 28, 2005 at 22:59 |
Slimfoot Select Member |
Joined:
Posts: | October 2003
1,546 |
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Did you try a "cheater plug" adapter that takes
a 3 prong down to 2? I have seen it work. Non grounded plug does eliminate problem.
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Sir, my concern is not whether God is on our side; my greatest concern is to be on God's side, for God is always right.
Abraham Lincoln
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| Post 13 made on Tuesday March 1, 2005 at 01:10 |
Tom Ciaramitaro Loyal Member |
Joined:
Posts: | May 2002
7,851 |
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Would one of those dandy electrical testers indicate if the outlet is wired correctly?
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There is no truth anymore. Only assertions. The internet world has no interest in truth, only vindication for preconceived assumptions. |
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| Post 14 made on Tuesday March 1, 2005 at 02:22 |
Daniel Tonks Wrangler of Remotes |
Joined:
Posts: | October 1998
28,766 |
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Multiple gounded devices in a system can always be trouble.
I'm assuming you've tried disconnecting EVERYTHING from the system (ie. only have the receiver + sub connected together - no TV, DSS, whatever) and adding everything back one device at a time until the problem is narrowed down.
If you get a ground hum with JUST the receiver and subwoofer hooked together... you may not have many options.
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| Post 15 made on Tuesday March 1, 2005 at 04:13 |
flandon Advanced Member |
Joined:
Posts: | September 2004
803 |
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Are there any VC in the system? Zone2 Internal amps w/ niles VC's? or Multichannel amps? It may also be bleed through from an unpowered down (analog) source?
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Flandon the mighty Dragon Fisher |
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