Question about Kenwood KAC-8101D Car Audio Amplifier

2 Answers

Amp not powering up??

Ok i hooked up all the wires. (ground, battery, head, and speaker wires) first time it worked for like 10 seconds then the sub cut out. i looked at the amp and the light was off. so i turned the car back on and the light comes on for not even a second then cuts out again. it does this every time i turn my stereo on. i moved the ground wire and it does the same thing. what could be the problem?

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  • andrew mccallister May 16, 2007

    But the amps power light will flash on for a second when i turn on the car then it just turns off. it does this if the speaker lines are conected or not. if i leave it on and mess with the ground wire agains the metal it will flash again. i have tried to ground it in like 10 different places but i cant get it to work.

  • fatos Mar 09, 2008

    Ok i hooked up all the wires. (ground, battery, head, and speaker wires) first time it worked for like 10 seconds then the sub cut out. i looked at the amp and the light was off. so i turned the car back on and the light comes on for not even a second then cuts out again. it does this every time i turn my stereo on. i moved the ground wire and it does the same thing. what could be the problem?

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2 Answers

Or you could have to low of gage wire??

Posted on Apr 22, 2008

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  • Contributor
  • 45 Answers

The sub amp may be damage, shorted. you may have a wrong speaker hook-up the first time you use it. too low impedance may have damage the sub.

Posted on May 15, 2007

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2 Answers

I have checked all connections to my amp battery,head unit,remote or trigger wire,fuses,power cable,rca leads,ground wire,amp has a green led light on it indicating if it works ok,red if it`s not,light...


Your amp could be in protection mode! Sometimes turning up to high or wires touching will put in protection mode! It will have to be unplugged for a day or two to drain all power out of the memory. Leave accessorie/ignition wire hooked up, just not power and ground wiring. It should reset itself.

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1 Answer

Amp burned out but fuses still good?


this is caused by inproper wiring from the speakers/subs to the amplifier.. an amp will still put out power to subs and speakers when it's wired improperly but it won't last for very long doing it... 6 months is longer than usual....

Dec 05, 2009 | MA Audio M1900XE Car Amp

1 Answer

Wiring issues


ok here is how it goes power wire from the battery all the way to amp..then ground wire from amp to a good ground on car then the remote wire which you have to run from the amp to the back of your stereo which in most cases is blue then hook subs from the sub box to the amp

May 30, 2009 | Legacy 2 Channel 1600 Watt Bridgeable...

1 Answer

Amp doesn't come on


Hello rheabarb,

You did not say whether or not you checked the wiring going to your subs. Many times, a shorted or grounded speaker wire will cause an amp to fail. And if the amp powers up OK with the subs disconnected, I'd suspect one or more of the wires.

Hope this helps.

May 19, 2009 | Clarion APX1300 Subwoofer Mono Amp - 300W...

1 Answer

Sub cutting out


Check the 12v wire running from the battery to the amplifier. Also the sony explode is a garbage subwoofer compared to the Alpine.. sony (they say 1200w max but its more like 100w to power the thing) Amp could be going. Is the amplifier hot when running. If there is a burnt smell comming from the amp, its the amplifier

Mar 27, 2009 | Alpine Type-R SWR-1222D Car Subwoofer

1 Answer

Cd player plays, but no sound comes out of speakers.


first off the amp gets power straight from the battery. the amp is used to power the subs. the subs are suppose to be connected to the amp only( never the speakers).

for the second part you mostlikely killed the wires. you should get some one to look at it and check the wires. thee speakers might need to be re-wired

Jan 31, 2009 | Kenwood KDC-MP238 CD Player

1 Answer

Intstall sub and amp


ok not much info but
u need a red thick wire with a fuse from positive on battery to positive on amp
thick black ground wire from negative on amp to car body
remote wire from remote on amp to remote on back of head unit
rca leads from back of head unit to amp
then hook up sub

Jul 02, 2008 | Car Audio & Video

1 Answer

AMP FOR SUB SHUTS OFF SOMETIMES


your amp may be overheating, or you have it up too loud and the surge protector is shutting it of in fear of damage to your amp.

Apr 24, 2008 | Kenwood KAC-7202 Car Audio Amplifier

5 Answers

Rampage BA-100 200W amplified subwoofer


Actually. I don't think you have to wire a remote switch from the radio to the amp on this product. This powered subwoofer supposedly has automatic signal sensing turn-on circuitry. I have the same problem. So I think I'll try to just hook up the power (to the battery), ground and the + / - speaker wires to one of the back speakers in the car and see if that works.

Jan 22, 2008 | Audiovox BA100 Car Subwoofer

1 Answer

My amp is not working


For the visonik, you should check your speakers. You can use a D-cell battery. Remove the speaker wires from the amp and connect each speaker across the battery (for no longer than a few seconds). The speaker should pop each time the wires are touched to the battery. If they don't, the speaker is defective (assuming the battery isn't dead).

If the speakers are OK, you need to confirm that you have a good signal feeding the amp. You can use the RCA cables from another working amp in the vehicle. Do this with the amp that had the power light lit.

If you have signal going to the amp and the speakers are OK, the only two things left are the power supply feeding the amp (from the battery) and the amp. If you have B+ and remote voltage AND a good ground, the amp is defective.







For the pyramid, the amplifier probably has shorted output transistors. The amplifier will have to be repaired.

Nov 16, 2007 | Visonik V117SX Car Audio Amplifier

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