Question about Car Amplifiers

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My car amp is not working right.....

When turning on the car the amp dont stop from throwning bass its just goes boom boom boom boom boom and with no volume on the car stereo

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  • Remove the RCA preout connections from the amp. If the problem is still there, we know it's the amp, not the head unit.
  • Check your gain settings. Set them to 50% and see if that affects the issue at all.
  • Check that your ground wire is nice and short.
  • If the issue is still there, it's possible it's internal to the amp and will need repair.

Posted on Mar 20, 2008

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I have a koiiler xm-8787 1000w amp. the problem is when i hook everything up correctly, the dual 10 inch sub make a repeating papapapapapapa none stop and doesn't produce bass. could it be the amp is...


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I need to know how to wire this amp up!


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Speakers cut off when bass goes up


probably the amp going to safe or protect mode judging by the fact that you have 3 subs wired to it i would say it is not 1 ohm stable try disconnecting 1 sub and see if it still happens this will be running a 2 ohm load rather than 1 if it stops happening then you need to figure out a better wiring configuration that will work with your amp.

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Remote bass control short


It Could be Eiher Problem Make Sure The Remote our using is thew same brand as the amp its plugged in to

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AMP shuts off


your problem could be in the fact that you are trying to overdrive the amp. sony will not carry a 1 ohm stable load and if your speaker are 4 ohm speakers wired in series then you cant drive the bass your looking for. try using soundstream tarantula amp or new hifonics block mono class d amp with about 1000 watts rms. what kicker subs do you have? that will also make the difference in amp choice. im running tarantula on 4 polk momo 4 ohm 12's and has broke my back glass in my jeep twice one time was for a show. oh well let me know. happy boom boom. i'll be glad to help

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It sounds like you have an open shield ground. To check the shield in your head unit, read through the following page.

Temporary Shield Ground Repair

Let me know if you have any other questions.

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Sony xm1652z amp problems


it sounds like you have the high lvl inputs on the amp hooked up instead of the rca's. this will cause the boominess for a few seconds when the amp is on and right when you turn it off

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Amp went into protect, but front speakers sound distorted too


If the amp still goes into protect mode, the easiest thing to do is disconnect the RCA cables from the amp and see if still goes into protect mode (after turning off/on). If it does, the issue lies in the amp or the wiring to/from the amp (most likely case). Check to make sure no speaker wires came loose and touched +12V or ground (car body). From the sound of it, my guess is something internal to the amp died and will need repair.

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