Question about Kenwood KAC-7252 Car Audio Amplifier

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Amp the power wire came loos and arcade on the amp. blowing the fuse. i put a new fuse in and the amp comes on for a in instant and shuts off. the fan on the amp is the only thing that work's.and the lite does not come on

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Re: amp

Sounds like you have blown 1or2 channels in the amp. The transistors that are against the heatsink. Check all you should find some are gone.

Posted on Sep 14, 2007

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Amps turn off and cut out

You just gotta get your gains set up right. Look Up "How To Set your Gains with a Multimeter" your over powering your subs or speakers and your amplifiers cant keep up. you also have to make sure your speakers are wired to the right ohms. your amp cant handle. if your amp cant handle, for Example:1 Ohms your gonna blow your amps. ......Speakers and subs are a science too.

Dec 27, 2012 | Kicker 10DX5001 Car Amp

1 Answer

I installed a planet audio TW402 amp in my car. i put this amp last summer. when i first put it in my car with an sony xplod sub. i had a very small 12 gauge power wire and ground wire. but still it worked...

It could have to do with how your speakers are wired. If you have 2- 4 ohm speakers and they
are both wired to one terminal (RIGHT OR LEFT) on the amp, you have a 2 ohm load and most amps are rated at 4 ohms.
Go to this site and use #58 on the right sidebar to see if you are wired correctly.

Mar 14, 2011 | Planet Audio TQ402 Car Amp

2 Answers

How come it blows 30 amp atc fuse instantly even with the system off

check connections are hooked up properly if it blowin the fuse with it off sounds like something is really wrong on inside get it checked out

Jun 04, 2010 | Kicker KX200.2 Car Audio Amplifier

1 Answer

Fuses blowing

It may not be your amp at all, disconnect the power wire from the amp and then try a new fuse. If it still blows you have the power wire grounding out somewhere, if it doesn't then it would have to be the amp.

Apr 01, 2009 | Diamond Audio D5-600.1 Car Audio Amplifier

1 Answer

Started blowing fuses

no you have created a solder jump fusing the circuit together I suggest buying another amplifier rather then repairing it you can buy a new amp or anything audio wise at dealer wholesale cost at this site:

Feb 01, 2009 | AudioBahn A2502DP Car Audio Amplifier

1 Answer

I have a kenwood kac-9152d amp i fried it opened it and the inner ground wire was fried in half now it just blows my fuses????

Dang! That's a class D anp! How did you fry it? If you "replaced" the internal ground wire and now it just blows fuses, I would say that the amp is direct shorted at the power supply if the fusesblow instantly when you put the fuses in.

Larry T
Winona Lake, IN

Dec 26, 2008 | Kenwood KAC-9152D Car Audio Amplifier

1 Answer

Blown fuses

there is a possibility that the current load is excessive nor there is a short circuit from elsewhere, do not try to install again a new fuse unless you are certain there is no shortages of any wire from inside the amp and throughout the system by physical inspection

also install the right value for your fuse meaning the right amp and voltage, high temp is an indicator of shortages and defective power transistor

Oct 06, 2008 | Pioneer GM-X862 Car Audio Amplifier

2 Answers

Amp in protection mode

Disconnect all speaker wires and signal cables from the amp. If it powers up normally (doesn't go into protection), the wiring needs to be checked. If it still shuts down, the amp likely has blown output transistors.

Nov 11, 2007 | AudioBahn A4401Q Car Audio Amplifier

2 Answers

Beer Spilled on my Power Acoustik PS2-820 Amp

Hi , now that you have the amp apart , just check the underside of the printed circuit board and check for any corrosion ,rub it with a soft brush . then try connecting without speakers . see if it still blows fuse, if it does then there is a likelihood that your mosfets / outputs may have shorted the first time you reconnected it . Good luck

Mar 21, 2007 | Power Acoustik PS2-820 Car Audio Amplifier

1 Answer

Blown fuses

I used to have one of those amps also (nice amp btw) Did you try another fuse of the same size?
Is it blowing fuses everytime you put one in or did it just blow that one fuse ?
Is the conection on the battery solid and clean of corrosion build up? Because that is a good amp and if wired properly shouldnt blow out or anything and so if the speaker is not blown then maybe connection is weak somewhere? I would try disconnecting the speakers from it and try a new fuse and if it does not blow the new fuse than amp is ok? and if it does blow the new fuse right away then there must be a short somewhere in the wire or the amp. then disconnect the fuse again and reconnect the speakers and if the fuse blows with the speakers connected but doesnt blow with them disconnected then you know it is a blown speaker causing the problem.

Just currious but what size fuse do you have connected at the battery?

Jan 06, 2007 | Rockford Fosgate Punch P4004 Car Audio...

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