Question about Kenwood KAC9105D Car Amp

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My kenwood kac9105d amp turns on but i get no sound from my subs. what could be the problem? i checked the subs with another amp and they are fine, and i replaced the rca cables and the remote wire, live wire, and ground wire are all working well. help!

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Posted on Jan 02, 2017

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Is the master/slave switch set to master? Have you tried feeding the signal into a different amp to make sure that there is signal reaching the amp?

Posted on Sep 19, 2007



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.

Posted on Apr 24, 2008

  • 92 Answers

SOURCE: humming noise in amp

You must break it down through a process of eliminating items. With the system running unplug the RCAs from the amp. Do you still hear the noise? Try turning the gain down on the amp a bit and increasing the subwoofer level on the head unit instead. Make sure you have a low pass crossover set (probably below 80Hz).
Does the noise change with engine RPM?
Try a different RCA cable. I find that most times noise filters will make the problem worse not better. If none of the above things work, check that the grounds within the car are good, battery to frame, to engine block and chassis. Sometimes a bad vehicle ground is the cause. If all else fails, hook it up to someone else's system and see how it works.

Posted on Oct 07, 2008

  • 113 Answers

SOURCE: amp overload protection mode

it sounds like the ground is bad to begin with and check the positve cable for oxidisation on the battery terminal and at all other places that the power wire is connected to

Posted on Aug 09, 2009

  • 60 Answers

SOURCE: amp has power but sub doesnt work

You say the amp has power so you mean the green l.e.d. comes on correct? If so and you don't get any juice to your sub, check your RCAs make sure they're hooked up correctly. If they are check the wires to your sub, make sure they're making good contact, if its a binding post connection to the sub it can look connected but not be i've had it happen to me before. If the l.e.d. is red, you either blew a fuse on your amp, or your sub is blown, but if you get a green l.e.d. on the amp don't worry about those. If everything checks out and you still don't get power, take your setup to a professional and have him personally look it over for you....... hope you get your bass bangin!!!

Posted on Sep 15, 2009

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My kenwwod kac-9105d power led indicator turns on with my kill switch, but there is no output to my two 12 inch 4ohm kenwood subs. i dont know what the problem is, i checked the wiring and it was fine....

check the leads that your using to send the audio signal to your subs and try a few different ones, if its digital do the same, both from amplifier to sub and from device to amplifier. you can also try a direct audio connection to the speaker or use a 9V battery and a couple of cables to see if the sub speaker moves or makes a hum or something when electricity is pushed through them. other than that i dont have a solution. best regards

Oct 30, 2013 | Kenwood KAC9105D Car Amp

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I have a Kenwood KAC-9105D amp. It is brand new and worked for about 20 minutes while I was driving and it hasn't worked since. When I turn my car on, the blue and red LEDs on the amp both come on for a...

First of all, how are your subs wired to the amp. Make sure your amp is not bridged or you'll fry it, it only has one channel. If that doesn't work you probably already fried your amp.

Oct 09, 2010 | Kenwood KAC9105D Car Amp

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My KAC9105D wont turn on? i had this amp stolen from me a week ago, purchased a new one and hooked it back up to the same wires that had been running the old one the exact same way, and it just lies there...

check your fuse on your power wire, should be under the hood by the battery. if the fuse is good then check to make sure you have a good ground and power on the remote turn on wire. it sounds like a blown fuse though, hope this helps. dave

Oct 04, 2010 | Kenwood KAC9105D Car Amp

1 Answer

Is the p.con the spot where i should hook up the remote wire on a kac9105d kenwood amp?

Yes it is. it runs to the blue and white striped wire coming off the head uni.

Oct 03, 2010 | Kenwood KAC9105D Car Amp

1 Answer

I have a Kenwood KAC-9105D amp with 2 Rockford fosgate 10 inch subs in a sealed 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...

It's the battery, not enough juice to supply your amp at loud volumes so the bass will drop out especially on long bass notes. Replace your battery!

Sep 25, 2010 | Kenwood KAC9105D Car Amp

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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...

Cant solve the problem but can help calling kenwood in am i have to of those amps and both do same thing its a cooling problem only 1 little fan pulling air out going to buy couple bigger fans and install in both ports and will let u know how it works out

Aug 06, 2010 | Kenwood KAC9105D Car Amp

1 Answer

No amp sound output

it might be ur ground check the gound wire

Jul 06, 2010 | Kenwood KAC9105D Car Amp

1 Answer

I just installed a kenwood dnx7140. Everything is

Have you checked to see if the sub amp is turning on. Check to make sure you have at least 12 volts on your power as well as your remote turn on (Blue/White on radio harness).
If everything is hooked up correctly, it is possible that the preout is turned off. Some headunits have selectable preouts. If so you should be able to turn the sub on and off in the menu.
Hope this helps

Mar 08, 2010 | Kenwood DNX7140 Car GPS Receiver

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