Question about Kenwood KAC-X520 Car Audio Amplifier

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Amplifier installation I recently installed an amplifier in my 1989 Mustang, and everything worked good, sounded good and the sub-woofer worked well too. I then turned down the volume and started the car up, and no sound except for one speaker and even at the highest volume I couldn't even hear it over the sound of the car running.

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  • Tygh Duval
    Tygh Duval May 11, 2010

    A few questions first:


    1. Does shutting the car off cause things to work fine again?

    2. Are you using the preamp outputs from your head unit to connect to the amp or the speaker (high) level outputs?

    3. Have you verified no wires have come loose, been pinched, or broken?

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Since there's been no response in over a month, I guess I'll assume the problem was fixed!

Posted on Mar 27, 2008

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When you say the 40 Amp fuse blew. Was it your mains battery fuse or was it the fuse on the amplifier? If it was the fuse on the amplifier then you may have hurt the amplifier. The Kenwood KAC-8101D is a 1000 Watt monoblock amplifier. Therefore if you say that 1 of your woofers is not playing, then it is almost certainly blown if you are sure it is connected correctly. Try disconnecting it and only running the woofer that tries to play. If this woofer is still working correctly, you will notice a drastic drop if the sound of your bass. The reason for this is because you have changed the impedance load on your amplifier due to the fact that the other woofer is not working. Have your working woofer checked and replace the faulty woofer then you should be banging again.

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