Question about Alpine PDX-1.1000 1000W x 1 Car Amplifier Car Audio Amplifier

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Why does my KAC-8404 cut off at high volume bass?

Ive got 2 Kenwood KFC-HQ718 speakers and a Pioneer TS-WX301 sub hooked to a Kenwood KAC-8404 amp... the system was working fine up until a week ago...the problem is when i raise the volume above half, it works fine... but as soon as heavy bass kicks in, the amp cuts off for a few seconds then comes back on... n it keeps doing this if the heavy bass continues...wht cud b the problem and how can it b fixed?

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My uncl had the same problem and he went back to the audio shop twice...Then called me...I discovered that the powr cords they used were not thick enough,giving the amp a low current to work on...but if you have the original cords you got when you bought the amp...it might also be a weak power supply....try playing the music while driving on a high speed or while reving the car to give more voltage from the alternator...If that doesnt work...come and shoot me please...im out,PEACE

Posted on Dec 29, 2008

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Amp 101

1/0 wire to the amp or the amps will loose power

check the connections mainly the negative

wiggle the wires see if you get a cut out or not

a cap will help you give constant power to the amp and not allow them to drain on long bass notes

hope this helps

Posted on Dec 26, 2008

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I have a Kenwood KAC-9105D amp with 2 Kenwood KFC-W3012 subs in a seal box. When i turn the volume up loud the bass fades out for a few secs and then comes back to being loud again, this keeps happing over...


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Need help


It should be better to use the Pioneer GM-7200M Amp with your subs.

For 8 ohm setup hook up this way:
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dont hesitate to contact me if you get stuck


cheers, adam

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