Question about Kenwood KAC-9152D Car Audio Amplifier

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Car audio, power wire problem...

I hook my system up.. car off power wire says 12 volts... turn the car on and power goes down to 4 volts.... help grately appreciated

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  • howdoiuhhhh Jan 29, 2009

    im running a 1800 watt kenwood amp, with power from the battery.. ground is for sure good (i even hooked up two grounds).....thanks for help

  • Larry Tezekjian
    Larry Tezekjian May 11, 2010

    Need more info to better troubleshoot. What size amp (look at the outside fuses and give me a total) Where is the power wire ran to, the battery? How about the ground wire. Ran to where? Did you get a GOOD ground? Metal to metal? Hit me back. Thanks.



    Larr T

    Winona Lake, IN

    http://www.cybersoundsaudio.com/cybersou...

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A 2nd ground isn't good unless it's the same guage as the 1st and it's grounded AT THE SAME POINT as the 1st one. Did you check the voltage at the amp? I wouldn't trust your dash gauge as I've seen them report a unreliable display under a load. I hope you're in good shape now. Booming season is fast approaching lol!

Posted on Jan 30, 2009

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75% of the time all you need to do is reground the ground wire. If you don't have a sturdy ground it can't complete the circuit. Make sure to grind off the paint so you're grounding to bare metal. Also, make sure your ground wire is the same gauge as the power wire or larger than. That should do it.

Posted on Jan 29, 2009

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1 Answer

How to connect wires to amp


Most amps have 3 places where you need to hook up wires to power them. the 1st is a ground wire that at best is 1 foot long and it goes on the ground or negative 12 volt connection then a bolt on the car you may need to sand off the paint for it to work, 2 a RMT or remote wire that is normally in the middle of the power and the ground connections the remote turns the amp on and off so it needs to go to the remote wire on the radio or a ignition spot on the fuse box - turns on with key on and off when you turn the key off , 3 the power wire is hopefully large 4 gauge wire and goes to the + 12 volt plug on the amp this wire has a in line fuse and goes to the battery and to the amp only. RCA wires go from the radio to the amp and are round and just plug in with no screws some factory radios need a conversion kit you can get at walmart for RCA wires. the speaker wires have some sort of mark or line to tell you what to put were like if you put the line on a negative on the amp you need to put the line on the negative on the speaker box to or it will not bass and could hurt your amp. ask me if you need anything else :) and please rate :/

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I have two amps one for my speakers and the other for my subs it was working fine but recently one of them turned off. I thought was a short circuit and bought a new one but still doesn't work. Its looped...


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WHAT IS HAPPENING IS UR SYSTEM IS PULLING TO MUCH POWER FROM UR BATTERY, I WOULD RECCOMEND GETTING A CAPACITOR.

Mar 20, 2009 | Kenwood KAC-9152D Car Audio Amplifier

1 Answer

Power wire volts go down when turn the car on


Is the power wire going to the battery? Is the ground wire short (3-4 ft) and connected securely to a GOOD metal groun source? Are you using an AGU fuse holder at the battery? Reason I ask these questions is you migh have a weak connection somewhere or a bad fuse that looks like a good fuse. When the amp is turned on, it requires more amperage that at a standby mode. Hit me back.

Larry T
Winona Lake, IN
http://www.cybersoundsaudio.com/cybersounds/vehiclepics.html

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1 Answer

When i hook up the remote wire it makes my power wire go to 4 volts


If the battery is strong enough to start the engine, you probably have a bad connection or a defective fuse in the power wiring. If you solve the voltage problem and the amp blows fuses, it likely has shorted output transistors.



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