Question about AudioBahn A2150HCT Car Audio Amplifier

3 Answers

Wiring diagram or schematic

My amp is making a humming sound. Even when the volume on the stereo is completely turned all the way down. I was wandering what exactly was creating this problem.

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3 Answers

It may be a bad ground that is one of the hardest things to get rid of

Posted on Feb 23, 2008

Also make sure you have a proper earth

Posted on Feb 14, 2008

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Make sure no of the speakers wires,inputs or antenna even cable is runnig parallel wite an electric cord or line.that is 90% reason 4 feedback(humming). Iif you have to cross wires do it in a intersecting way.perpendicully<if thats a word.rating please

Posted on Jan 31, 2008

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2 Answers

So i have installed my amp, epicenter, all wiring is done, hace great ground.. But once i turn my car on to sound check everything starts fine but after turning up the volume a bit.. My amo goes into...


It sounds like you have your gain to high. best way to solve this is by turning the gain way down to - or lowest number , then turn everything on and upto the volume you desire, then slowly up the gain. also avoid using bass boost, I agree it sounds great but it puts strain on the amp and shortens life in the amp. with the bass boost off, you can adjust others (not the gain) to get bass.

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Humming from subs? If from inside amp, your experiencing a problem with a driver board. It makes transistors latch on and loads down the transformer, causing light to come on. And vibrations "hum" from transformer.

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Hello,

It sounds like you may have a ground loop issue. I'd start by checking all the power and ground connections. Then disconnect the RCA wires from the amplifier. If the hum goes away then you should try grounding the stereo to a better grounding point, the factory grounds are usually not very good at all. Then try it again, if it is still there try replacing the RCA"s.

If the hum is still there after you've redone the connections and replaced the RCA's, you may need to install a ground loop isolator.
Both www.crutchfield.com and www.sonicelectronix.com sell good ones.

Hope this helps

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I often troubleshoot these issues via a stereo head set, modify the leads so you can "Touch" them onto the Speakers Output Terminals, connect the "Shields" together, thats "Earth" and the other Two, are Left & Right... with the Amp's volume turned to about 25% volume, connect up the Earth wires to the Chassis with a clip, under a srew etc, just make good contact... then touch the Left & right wires onto the output, ya should hear sound... if not most probably the Output device(s) may have gone faulty.

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1 Answer

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