Question about Kenwood KAC-9102D Car Audio Amplifier

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Problems with my Subs amp

Hey, i have a KAC-9102D Kenwood Amp and it's been working good for year and a half and now the amplifier is protected, also the amp has a strange noise, i think it's because it's protected. I tried to fix the problem moving all the wiring conections and the ground cord, but it still protected. I don't know what to do about it.

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Here is the link for the user manual for your amp if you need it; http://akamaipix.crutchfield.com/Manuals/113/113KAC9102.PDF There appears to be no designed error code indicated by a flashing power light. the light is either on or off, and if the protection is on then the light is off.(page 2) I think therefore that your amp has a major problem in the control part of the circuitry, almost certainly something that needs replacing rather than being repairable. if you wish to try yourself then if you can open the amp up, and post us some clear close up photos then we may be able to help. If you wish to find the nearest Kenwood dealer then; http://www.kenwoodusa.com/support/simple.aspx?men=2&M2=38 Hope this helps - sorry if it is bad news :)

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Posted on Apr 14, 2007

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How do I wire two subs up for the full 850 rms on a kac-9102d amp

  • Wire up two 4 Ohm subs in parallel (bridged) or one 2 Ohm sub.

  • You will take both of your subs positive leads and run them to the left positive (white connector on the amp) and both of your subs negative leads and run them both to the right negative (gray and black connector on the amp). That's max RMS right there. Pay attention to the Ohm rating of your subs as this does play a factor. What I explained is how to bridge two 4 Ohm subs. 8 Ohm is a little different but car subs rarely are 8 Ohm.

  • If you have any comments please feel free to leave them here.
  • Hope this helps and thank you for using FixYa.

Regards, Tony

Sep 27, 2011 | Kenwood KAC-9102D Car Audio Amplifier

1 Answer

I have a a Kenwood amp (KAC-9102D), and it won't turn on and I cannot figure out why. All the fuses are good, all my wires are connected correctly, and it is fairly new. I have a feeling it may be in...
do you have the rem (remote turn on) connected to the remote turn on lead from your head unit? what make and model is your head unit>?

Aug 12, 2010 | Kenwood KAC-9102D Car Audio Amplifier

1 Answer

Solve Your ''kenwood kac x40m problems'' Problem Now! the operation protection light is on never goes off subs dont work what do i do
your amp output transistors are shorted and protection is activated to protect your amp from bigger damage.if you are confident you can try to open the amp and you should see some burn marks or burnt(blown) transistor and just simply replace him.or take it to repair shop

Mar 21, 2010 | Kenwood KAC-X401M Car Audio Amplifier

1 Answer

My amp is a kenwood kac-9152d it goes in to protection mode soon as you hook up the power
In protection mode do you mean the light comes on and it plays music and stuff? If that's the case, that's what the amp is supposed to do. Protect itself from a power surge

Feb 21, 2010 | Kenwood KAC-9102D Car Audio Amplifier

1 Answer

Wiring options
Yor best bet is to wire each one positive to neg to get 8ohms then pos-pos and neg-neg to get 2.66 ohms. Otherwise series parallel. If you wire them all pos-pos and neg-neg you will be running .66ohms and will most certainly fry your amp or it will overheat and shut down all the time

Sep 07, 2009 | Kenwood KAC-9102D Car Audio Amplifier

1 Answer

Amp goes dirctly into protect
ok well it could be two thing wrong your amp dont have a good ground or your amp is a smar amp and your subs must have to be hooked up so the power from the amp cn go to the subs so the amp can see that you do have subs hooked up to take it out of protect o and look at your fuses to to smal or to big will send it to protect to

May 19, 2009 | Kenwood KAC-9102D Car Audio Amplifier

1 Answer

To bridge a Kenwood KAC-9102D
Hello laurogleal,

The Kenwood KAC-9102D is a mono amp. There is no bridging. Having two sets of terminals is just a more convenient way of connecting two subwoofers. The amp is stable down to 2 ohms impedance, so it is safe to run 2 4 ohm loads in parallel.

Hope this helps.

Apr 28, 2009 | Kenwood KAC-9102D Car Audio Amplifier

3 Answers

KAC-9102d no sound, Amp powers on but no sound to the subs.
If the sub isn't working, you won't get a pop. All you need is a small speaker. Don't need a sub, you just want to test the sound. I recently blew 2 subs, no smoke, no smell, no sign of being blown. Absolutely nothing from the subs.... In the past my sub locked up. You can take your sub out of the box and hook the + and - to the battery to see if you can get the sub to pop there. I believe a small box will push a sub into a deep excursion to the center of the cone. I have 2 lanzar VW12D's that just quit. I hooked a 6 x 9 up to my amp and low and behold I had sound! Try that and see what you get...

Feb 07, 2009 | Kenwood KAC-9102D Car Audio Amplifier

1 Answer

Amp goes into protection
First change the wire,and disconnect the subwoofers to check if the amplifier turn on without going in to protection mode,if the amplifier go to protection mode you gotta change the Audio amplifiers IC's because they are in short circuit.And if don't go in to protection put one speaker at a time to check if one of them are damaged.Good luck.

Jun 02, 2008 | Kenwood KAC-9102D Car Audio Amplifier

1 Answer

Amps protection
No but eventually you will melt the varnish coating the wires on the voice coil and will cause the voice coil to fall to short and could possible blow the Amplifier. and definately ruin the speaker.

Sep 08, 2006 | Kenwood KAC-9102D Car Audio Amplifier

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How do I wire two subs up for the full 850 rms on a kac-9102d amp

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