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.

  • Anonymous 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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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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1 Answer

No sound from speakers, but yes from sub. Grounding issue?


Grounding issues are just simply earth connections that are either loose or are badly soldered. Sometimes with bad soldering a knock on the unit can make it play. It's just a question of going inside and looking - with a lens sometimes - at soldering joints - wire connections and screws fixing. Random cut outs certainly sound like bad soldering problems etc. The only other cause is heat sensitive devices, which shut down when too hot. But I wouldn't jump to that conclusion just yet.

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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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this is the problem with the additional battery wiring. use appropriate cutout and do rewiring. make sure the Dynamo has the enough capacity to charge both the batteries. better avoid using your music system till the problem is rectified.

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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

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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

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1 Answer

I bought a 500/1 jl audio amp and also a w7 10 sub


if its cutting off and right back on then check your ground and your power wire makes sure both are connected good and none of your fuse's are blown, either that or you got a wire hooked up backwards in the sub.. but my guess is that the sub is hooked up wrong... that sub should be hooked up in a series or in parallel,

ok if your running just one speaker, it should be hooked up like this and 2 speakers are a different way...

this is parallel :pos to pos , neg to neg, then one wire coming from pos on sub to pos on amp then neg on sub to neg on amp but bridge the amp on your amp should be 2 pos and 2 neg in two different channels take the pos off the sub into the pos on 1 channel and then the neg from sub to the neg on the other channel,

this is series : on the sub it will go pos to neg then the other neg and pos will go to the amp, but make sure the pos and neg r on different sides of the sub, dont hook them both to the same coil

if your need more help give me your email and ill send you a pic of how to do it...


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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

Cant figure out my car audio problems!!!!!


There are a couple of tests you can perform. I'd first recommend checking the shield ground. You'll need an ohm meter. The details can be found on the following page.

RCA shield ground test

You can also test the output with the multimeter. Set the multimeter to AC volts. If it's not an auto-ranging meter, set it to a voltage range of ~2v AC. Disconnect the RCA cables from the head unit. Touch one meter probe to the outer ring of the head unit's RCA jack. Touch the other probe to the metal contact in the center of the RCA jack. With the head unit near full volume and a clean signal source, you should read at least one volt on musical peaks. If you have a bass disc or a test tone disc (~60hz sine wave), use those.

May 04, 2008 | MTX Thunder 8302 Car Audio Amplifier

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

1 Answer

Amp shuts off


is this a new problem or has it always done it?? it mos tlikely needs repairs, but try this first. Hook up ther + of one sub to the speaker + on the amp. Hook the - of that samne sub to the + of the other sub. Then connect the - of the other sub to the speaker - on the amp. This will run the speakers in series and will put alot less strain on your amplifgier. It will not "hit" as hard but it sbetter then having it shut of fall the time. I would also make damn sure that:
Your ground wire is large enough and properly grounded. It should be BOLTED to a solid poiece of metal on your car. Use a screwdriver, whatever so scrape off any rust as the connection should be a clean, BARE METAL connection. Next make sure your power wire and fuse are ok. If you are using round glkass fuses, replace it even if it looks good. I have seen those fuse smelt the solder in the ends. They can look great but really be bad.

SO go through all the basics and if it still gives you problems then it needs repaired. Please dont rate me un-helpful.

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