Question about Kenwood KAC-9104D Car Audio Amplifier

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KAC-9104D pops fuses at medium to high volume. worked fine in my car, and when i put it in my friends somehow it stopped working. coincidence or my fault idn but i need to figure out whats wrong. any help? i took off the back plate and looked at all of the transistors and none of them seemed corroded or burnt...

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  • TDWPgtp Jul 23, 2009

    ya they are dual 4 ohms ran to 1 ohm on the mono amp. it IS one ohm stable. and even when i just wired a different set of subs to 4 ohms it still popped the fuses

  • TDWPgtp Jul 26, 2009

    ya i tried it with different subs 1 2 and 4 ohms and it still pops. it takes a little longer to pop them at 2 and 4 ohms tho.

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Make sure that the connected speakers have the correct impedance. should be 4 ohm typically. some amps support 2 and 1 ohm, too. wrong impedance could occur when you connect two speakers in a row for example. it's all about electric law.

Posted on Jul 23, 2009

  • spx09 Jul 23, 2009

    just to clarify: it pops even if you connect only 4 ohm per channel to the amp?

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2 Answers

Kenwood kac-9104d stopped working was in car music loud amp stoped worked I stop to change fuse it wasn't blown popped hood that amp was blown don't know what's wrong with it


Turn your gain below half. Make sure you have a solid ground, not a seat belt bolt. The fuse blew to protect the vehicle because there was too much power being pulled by the amp, possibly from overheating.

Sep 19, 2011 | Car Audio & Video

1 Answer

How many watts in a Kenwood kac-9104D


Kenwood KAC-9104D

Product Features
  • Mono subwoofer amplifier
  • 500 watts RMS x 1 at 4 ohms (900 watts x 1 at 2 ohms)
  • Variable low-pass filter (50-200 Hz at 24 dB per octave)
  • Bass boost (0-18 dB at 40 Hz )
  • Subsonic filter (15/25 Hz, 18 dB/octave )

Jun 29, 2011 | Kenwood Car Audio & Video

1 Answer

I have a Kenwood KAC-9104D that will power on but not produce any sound??


Be sure the RCA cables are attached and in good condition.
Be sure the remote wire from the deck is hooked up and good.
Be sure the GAIN control is turned up.
Volume on head unit is up. Make sure BASS options are not turned off on deck.
Be sure wires are going the right way. + to + & - to -
Loose wires in the box. Make sure subs are hooked to the terminals inside box.
Check all fuses on amp to determine if 1 or more i blown.

Feb 18, 2011 | Kenwood KAC-9104D Car Audio Amplifier

1 Answer

My kenwood KAC-9104D only hits when i tap the side of it or tilt it at a weird angle.... what do i do?


i had the same problem with the same amp. it was the internal positive terminal on the amp. the connection was bad. i was an easy fix.

Dec 23, 2010 | Kenwood KAC-9104D Car Audio Amplifier

1 Answer

KAC-9104D Car Audio Amplifier: how to bridge...


Sorry this is a mono amp, you cannot bridge one channel

May 17, 2010 | Kenwood KAC-9104D Car Audio Amplifier

1 Answer

My 1800w kenwood amp keeps blowing the fuses


there are 3 reasons your amp is blowing fuses. The first is that it is no good. If amp plays at all then that is not the case.

Then it is more likely 1 of or both of these 2 reasons.

  1. The fuse is too small for the load you are putting on it and needs a bigger one.
  2. You have the amp wired to an ohm load that is too low.
Try upping the fuse to the next size up.

If the amp just blows the fuse and will not work at all. It may be shot.

Dec 02, 2009 | Kenwood KAC-9104D Car Audio Amplifier

1 Answer

Have a Kenwood KAC-9104D the red triangle is flashing


maybe when hook up something sorted and blew the sub side .I have seen it happen

Nov 27, 2009 | Kenwood KAC-9104D Car Audio Amplifier

1 Answer

Knewood KAC-9104D AMP


if your good with electrical soldering circuit boards you maybe able to pull it apart it may have just popped a capacitor  it should be obvious when u get it apart if it is   then you could go to radio shack or order off the net what cap  you need  remember to use low temp solder when soldering to the board  write down the numbers from the cap that is blown and order same to replace  hope this helps  

Feb 05, 2009 | Kenwood KAC-9104D Car Audio Amplifier

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