Question about Kenwood KAC-9102D Car Audio Amplifier

2 Answers

MTX 7500 single voice coil

How can i tell if a subs shorted? I blew three amps with this sub

Posted by on

2 Answers

Re: MTX 7500 single voice coil

You cant blow an amp ur polly putting the amp at too low of ohms

Posted on Feb 09, 2007

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer
Re: MTX 7500 single voice coil

Take an ohm meter to your + and -, if you read 0 ohms, you have a short, if you read infinite ohms, you have a broken coil. That is the trouble shooting solution to a shorted or broken coil.

Posted on Feb 06, 2007

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer

Can you help with my wiring?

The more amp you are pushing the better. Better too much amp then not enough. How many watts per speaker? less then the amp I hope. When you need decibles the more air you push the louder it will be. Enclose in a MDFB enclosure or plexiglass and feed towards each other and port the box to the sides. This will cause some annoyance. We ran 2 rockforts @1000 watts and abtained 137dc before the back windshield blow out,,lol

Mar 09, 2010 | MTX 6001 Car Audio Amplifier

1 Answer


Just wire one voice coil each into left and right rear respectively, in series with the original rears or if this is too quiet, wire both voice coils in parallel together and connect as per original single coil unit.

As they are 4ohms each they can simply be connected as simple speakers on each rear channel output, since thats exactly what they are, capacitors are used inside to make them react to bass frequencies only. Wiring them up is no different to wiring up a pair of 6x9's.

Oct 24, 2009 | MTX Thunder 4244 Car Audio Amplifier

1 Answer

Not working

disconnect the subs from the amp and check to see if the amp will turn on and stay on-check the subs to see if they are blown with a different source try a pair or a single sub that you know works fine on the amp and see if it plays-this should tell you whether your amp is fried or your subs are roasted

May 19, 2009 | MTX 4002 Car Audio Amplifier

1 Answer

Need help

Hello bully_bread,

Your amp will be powering the sub at 4 ohms.

The impedance or "load" that the amp sees is determined by the number of voice coil(s), the number of sub(s), and how they are connected. Whatever that final load, it is the impedance or "ohms" that the amp is supplying power at.

A single 4 ohm sub with a single voice coil cannot present a 2 ohm load. However, a sub with dual 4 ohm voice coils wired in parallel will present a 2 ohm load.

Here's a link to Rockford_Fosgate's "wiring wizard" where you will find all combinations of subwoofer wiring and the resulting loads.

Hope this helps.

Apr 13, 2009 | SPL Audio Phantom DK2-1000 Car Amp

1 Answer


I looked up that amp, it doesn't have a listing for 2ohms x1 but it has 2 ohms x 2 and its at 250watts. For this situation, I would recommend a different amp or different subs. Right now you are getting the most you can get out of your sub/amp combo, if you only have single voice coil subs. Which is common in the mtx preloaded boxes. Either you want an mono block amp stable at 2 ohms or 2 dual 4 ohm voice coil subs. If you got the subs you would wire the voice coils in series so you could get 8 ohms then the subs in parallel so you could get 4 ohms, which would be the best for that particular amp. Good luck.
-Andrew Hawkins

Aug 23, 2008 | Legend LA1490 - American Legacy Series 2 -...

2 Answers

Directed 1100d 2-channel amp

You will bridge the amp, and if the subs are all 8 ohm subs, you can probably wire them all in parallel, if they are all 4 ohm subs, you would wire then in series.

Oct 17, 2007 | Directed 1100d Car Audio Amplifier

1 Answer

My car AMP will play for a few minutes, then just Turn OFF

Is your sub single voice coil or dual? If it's dual, is it wired in paralel or series? It's possible for an amp the heat up so fast, the outside is not hot to the touch. Also, the next time it happens, use a paperclip and short the 12+ to the remote wire on the amp and see if it comes on. Let me know, and be sure to leave feedback or I don't get paid

Sep 30, 2007 | Car Amplifiers

1 Answer

How should I wire up this amp and sub

The amp's not actually a very good match for the sub, since the sub can be wired for 2 ohms or 8 ohms, and the amplifier is most efficient at 4 ohms in bridged mode. My advice would be to wire the amp in bridged mode, and wire the sub for an 8 ohm load. To do this, the amp's (+) wire should go to the (+) terminal on one of the sub's voice coils. Then run a wire from the (-) terminal on the OTHER voice coil to the (-) terminal on the amp. The remaining (+) and (-) terminals (on opposite voice coils) should be connected to each other with a wire. Your original wiring setup had the amplifier connected to only one voice coil, while the other voice coil was shorted.

Jun 10, 2007 | Kole audio Q2-480 Car Audio Amplifier

1 Answer

My 7801 doesnt turn on

check pwm circuit amps turn on with 3-4 volts on mosfet gates ic 494, 5252or 555 controll these.hit me up for more


1 Answer

Amp protection problem

I run one sub on my Kenwood Amp also. It does over heat also. My conclusion is that we are both trying to push that one sub too hard and the amp is having to work really hard to make that sub do what we are asking. Also, not having enough power or a good ground will cause it to over heat. I am going to go with the voice coils are heating up though.

Sep 16, 2006 | Kenwood KAC-9102D Car Audio Amplifier

Not finding what you are looking for?
Kenwood KAC-9102D Car Audio Amplifier Logo

Related Topics:

135 people viewed this question

Ask a Question

Usually answered in minutes!

Top Kenwood Car Amplifiers Experts

Matthew Spark
Matthew Spark

Level 3 Expert

1042 Answers

Tygh Duval
Tygh Duval

Level 2 Expert

290 Answers

Pieter Vleeshouwers

Level 3 Expert

1315 Answers

Are you a Kenwood Car Amplifier Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides