Question about Amplifiers & Preamps
Any suggestions on how to take care of this one? My home theater setup has a mean ground loop hum.
Ran into this problem myself in two different homes. Went to A/V store where they install high end equipment, they explained its a problem with the way the AMP for the **** kicker and the amp in my subwoofer, and a/v processor are all plugged into the same electrical circuit in the house. They tried to sell me a $35 ground loop eliminator kit. Didn't go for the kit after looking at it, I came up with a solution that cost me $.39 cents. Thats right 39 cents. Go to Home Depot, Lowes, Ace Hardware and ask for a plug adaptor (they usually come in grey but you can shop around to find other colors). They are sold for older homes that dont have ground fault plugs only the two prong outlets. Plug your Subwoofer or your AMP into the adaptor then plug it in. All the humming and feedback noise will be a distant memory.
Posted on Jan 23, 2009
Boy you must have a mess. We will start process of elimination. Make sure power cords are out of the wall at first. First plug the preamp into the duplex then plug the amplifier into the wall. Connect the speakers then connect the wires between the preamp and amplifier. All should be well. If buzzing countinues, you need to find a ground adapter. This is a small device that on the female side has 3 prongs and the male said 2 female redeptor. If your using a AC strip plug put the adapter on and then plug in wall...
Well pick it up in the next chapter if nothing works here...
Posted on Jan 17, 2008
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