Question about Kenwood KAC-9152D Car Audio Amplifier

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Amplifier not turning on

My am used to play fine but start shorting out on and then of now nothing

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  • seth Alvo
    seth Alvo May 11, 2010

    You really really really have to give more information. There are fuses in the amp and there are fuses in the car going to the amp...what is your level of expertise?


1 Answer

I have the same problem with a KAC-8151D. Just pulled it apart to do some PCB testing. If I find the problem I'll let you know.

Posted on Jun 20, 2008

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I have an ma audio hk2000d. A couple years ago I hooked it up to a set of subs an it played just fine underpowered then it popped a fuse on the amp. Now every time I Start playing music the fuse pops. I...

Have you tried different speakers? If a speaker has a short, it will draw too much current from the amp and pop the fuse. Also, does the amp pop a fuse on idle, or just under load. What is the gain set for?

Nov 04, 2013 | Car Audio & Video

1 Answer

My car Amp keeps blowing the main fuse, How to find the short?

Hello A4en1, hi, A short circuit need not be burned, the short usually are semiconductors such as ICs and transistors or diodes, I suggest you replace your IC power amplifier.

Mar 29, 2010 | Sony Car Audio & Video

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One sub is not playing and when is wired to the amp shorts out the other

from how i understand you statement, and your subs are connected in a bridged fashion, then i advise a word of caution, as i believe that you may be imposing a serious load on your amplifier. the sub that is not playing may in fact be shorted and that is why it cuts the signal to the other sub. the amplifier sees both subs and the shorted one will impose a serious load and can cause the amplifier to fail if driven hard. separate the subs and meter them with an ohm-meter and see if they are close to the same. if they are 4 ohm for example, they might read around 3.2 ohms, etc. using a dc ohm-meter is not an accurate to measure the impedance of the sub, but it is accurate for comparing two subs. you will probably find that the one that is out is shorted and will read below one ohm. everything that i have stated so for, takes into account that your subs are bridged to the amplifier. if in fact they are not bridged and on separate channels, then swap the subs around and if the bad one starts playing, then you have a bad channel on the amplifier or a bad input to the amp lifer. at this point you would swap the rca inputs around and if the bad sub that started playing when you swapped it around, goes out again, then it is an input problem which then you should check the rca cable or radio itself. i know my statement may be a little confusing, but if you follow them exactly, you should be able to determine exactly what is at fault. let me know if you need further assistance....v

Jan 07, 2010 | AudioBahn DUB Mag Audio DUB2502 Car Audio...

1 Answer

I have a dual XIA3145 580 watt amp that keeps blowing fuses

Generally, this indicates that there's at least one shorted output transistor.

Disconnect all speaker wires from the 'amplifier's speaker terminals' and disconnect RCA/signal cables from the amp. If it powers up normally, the speakers/wiring need to be checked. If it still blows the fuses, the amp almost certainly has shorted output transistors and will need to be repaired.

I'd recommend using two 10 amp fuses. The amp will power up with 10 amp fuses if there is no problem. If there is a problem, there's less of a chance of doing more damage by using the 10 amp fuses.

Let me know if you have any other questions.

Sep 04, 2009 | Dual Electronics illumiNITE XIA3145 Car...

1 Answer

Stops playing if i turn im up louder if i restart than he plays and wen i turn up the volume everything stps even the licht goes out

Disconnect speakers and test. Crank up the volume and see if it still cuts out. Then re connect one speaker at a time and test. if it cuts out, check for a short in a speaker wire or a bad speaker (blown or shorted coil) Hope this helps

Aug 08, 2009 | Lightning Audio S2.500 2CH 500W Amplifier...

2 Answers


Start removing wires from the amp, one by one (except for the +12V, Ground, and remote) until the amp seems to work fine. Usually, this type of issue is due to a speaker wire shorting to something it shouldn't be touching. Check the "non-amp" end of all the wiring to make sure they are solid and correct.

Apr 04, 2008 | Volfenhag ZX-8300 Car Audio Amplifier

1 Answer

Amp has power and sound at very low settings only

It sounds like you may have a speaker wire shorted to ground. This could trigger the protection circuit. Check all wiring including the area behind the 6x9s to make sure that nothing is shorted to metal/ground. If you can't see any shorts to ground, use an ohm meter to check the wires.

Disconnect the wires from the amp and measure the resistance between the speaker wires and chassis ground. Ideally, they should show infinite resistance. If you read anything other than infinite resistance, trace all wiring to find the short.

Dec 08, 2007 | Pioneer GM-5200T Car Audio Amplifier

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