Question about Kenwood KAC-9152D Car Audio Amplifier

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Won't Turn On--- Positive, Negative touched

Well I am not sure why but i was hooking up a new sub,, MTX 9500 15 (not sure if that matters) I had to unhook the power to get the speakers wired so I did and then when i was putting the power back on and it sparked because the positive and negative touched. Now my amplifier will not work at all, I hooked it up to a different car to see if it was the remote wire but did not work. I do have a farad capacitor hook up to the amp.

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Re: Won't Turn On--- Positive, Negative touched - Kenwood KAC-9152D Car Audio Amplifier Car Amplifiers

Change your fuse

Posted on Dec 28, 2007

Re: Won't Turn On--- Positive, Negative touched

I've had the same problem, what happened to me was i blew some diodes in the amp and it had to be sent to kenwood for repair.

Posted on Sep 28, 2007

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Re: Won't Turn On--- Positive, Negative touched sounds to me like you may have fried the capacitor...try hooking it up without the capacitor in line,and check to make sure the in line fuse on your power lead is ok( usually in theengine bay) and also that the fuse on the amp is ok too.

Posted on Sep 06, 2007

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1 Answer

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Positive out from amp to positive on first coil. Negative on first coil to positive on second coil. Negative on second coil to negative out on amp.

If you have 4 ohm coils, that will make it an 8 ohm load for the amp. It won't be anywhere near as loud, but it'll run a lot cooler.

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lets do some diagnosis.. if it's possible, try hooking another known good sub up to the amp and see if that works. if it doesnt, it's an issue with your amp. if it does work though, it's an issue with your sub. or the wiring. if it's a dual voice coil sub, make sure you've got both positives hooked up to positive from the amp, and both negatives hooked up to negative from the amp. if you've accidently got positive from the amp going to positive of one voice coil then to the negative of the other, and the negative from the amp going to the negative of one voice coil then to the positive of the other, the voice coils will be pushing against eachother cancelling eachother's movements out. and this will fry the sub. OR the sub is already fried.

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2 Answers

My amp keeps going into protect

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check your fuse up front first. some amps will turn the light on with only the remote wire (the 12 volt signal from the head unit). That may be your issue. If not you need to check your signal input. try hooking the rca's to a diffrent source, i.e. other radio your tv anything with Rca out put. If still you get nothing then pull your subs out and take a regular 9 volt battery and touch the leads to the positive and negative of the sub. Just for a moment though if the subs move when they come in contact with the charge from the battery then my last suggestion would be to take it to a store where you can have an authorized tech check out the equiptment. Good luck

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