Kenwood KAC-9103D Car Audio Amplifier - Answered Questions & Fixed issues

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Power keeps cutting in and

Sounds like u have some blown output transistors possibly. Check all connections especially Ground! If no luck have ur local repair technician have a look at it.
6/1/2014 12:38:38 AM • Kenwood... • Answered on Jun 01, 2014 • 79 views
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No sound

Sounds like the bumby road may have made ur output wires touch and short out some output transistors in ur amp. Or ur amp has bad solder connections. Either way have ur local repair technician have a look at it
6/1/2014 12:16:52 AM • Kenwood... • Answered on Jun 01, 2014 • 90 views
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Replace rca ports in an amplifier

Have ur local repair technician have a look at it. It may just be bad solder connections on the board where the rca jacks are connected. If not order them and have a tech. Put them in
6/1/2014 12:08:29 AM • Kenwood... • Answered on Jun 01, 2014 • 63 views
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I have a Kenwood KAC-9103D hooked up to two 12

your amp has a output section problem,contact eric @ Capital Audio & Electronics Repair in Tallahassee,FL 850-339-1130 wee repair all brands and models
6/1/2014 12:03:37 AM • Kenwood... • Answered on Jun 01, 2014 • 317 views
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Adjusting wattage on kenwood kac 9103 class D mono amp

That amplifier is 900W x 1 @ 2ohms.
If your subs are 4ohm SVC wired Parallel, resulting in a 2 ohm load, each sub will only see 1/2 of the rated power. (450W ea.)
Your gain (sensitivity) setting should be between 75% and 85% to max. You will be fine.
11/16/2012 7:26:26 PM • Kenwood... • Answered on Nov 16, 2012 • 741 views
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Two questions. 1) can my amplifier over-power this

No, your not over powering your L7, your underpowering your subwoofer.
Your Kenwood is
500W x 1 at 4ohms [20-200kHz 0.5% THD]
900W x 1 at 2ohms [100Hz 1.1% THD]
Your L7 is:
Max Rec Amplifier Power (WATTS PEAK/RMS)* 2000/1000But its ok for your subwoofer, alteast your not giving it to much stress. But personaly, get another mono amplifier that would match your subwoofers rating.

4/8/2011 5:42:48 AM • Kenwood... • Answered on Apr 08, 2011 • 212 views
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My kenwood kac 9103d just crapped out on me and i

More specifically, the amp must support the resistance of the sub, or subs. If your amp is 2-ohm stable, it can run a sub, or subs wired for a 2-ohm load. Also, whatever the recommended maximum wattage is for the subwoofer, try not to exceed this much, if at all, with the amplifiers wattage. I’m happy to help further over the phone at https://www.6ya.com/expert/jeremy_69f3cc28d95bf514
1/18/2011 8:30:31 AM • Kenwood... • Answered on Jan 18, 2011 • 107 views
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What size amp is the kenwood KAC-9103d amp

im not sure what you mean by what size amp....whether you mean physical size or wattage (power) so I have provided a website link for all the specifications that you require..........

http://my.kenwood.com/Car_Entertainment/Power_Amplifiers/KAC-9103D

PLease vote if you liked this response....
8/20/2010 5:44:52 AM • Kenwood... • Answered on Aug 20, 2010 • 137 views
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All the power and head-unit cables were installed

try checking the amps fuses
4/20/2010 8:50:06 PM • Kenwood... • Answered on Apr 20, 2010 • 123 views
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KAC-9103D hooked up to two 12

My best guess is that it would be your ground wire or even the power into your amp. I would check all the connections going to and from your amp
3/12/2010 5:09:18 PM • Kenwood... • Answered on Mar 12, 2010 • 435 views
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KAC9103d been running great for a year, factory

Could be that you have a partially roasted(blown) coil on one of your subs which will function- but will keep tripping your amp.You can check that out just by using a different set of subs to listen to and by the process of elimination if the problem goes away then you know where the problem is at.Also check your gains you might be riding the gain a little high which causes distortion which causes heat(FAST) which will cause the amp to shut down completely or some amps will decrease output in a programmed attempt to save itself.turn the bass boost down to half if you even use it at all- that too can cause massive distortion in the amp itself,meaning only that if you have the bass boost on your deck turned up and then you turn the boost up on your amp the sound signal is then WAYYY distorted which will cause a thermal shutdown too. Last thing is to make sure that your subs arent running below 2 ohms because i believe that particular amp is designed to put out about 900 watts at 2 ohms.good luck
1/30/2010 7:53:33 PM • Kenwood... • Answered on Jan 30, 2010 • 130 views
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Why does the kenwood kac-9103d has two sets of

Hello damasogrizzl,

The 2 sets of terminals are connected internally. Having 2 sets just makes it more convenient when wiring multiple subs. The amp is rated for 900 watts RMS into a 2 ohm load. The specs claim that it is stable at 1 ohm but does not give a power rating.

The Radial SD competition series from Phoenix Gold are rated to handle up to 600 watts RMS. If you have the model RSdC124 with dual 4 ohm voice coils, it would be best to wire the voice coils in parallel for a 2 ohm load and connect the sub to one set of terminals on the amp. If your sub is the model RSdC122 with dual 2 ohm voice coils, you should wire the voice coils is series for a 4 ohm load and connect the sug to one set of terminals on the amp. Wiring the voice coils in parallel will result in a 1 ohm load. And, while the amp may be stable at 1 ohm, the sub will be seriously overpowered.

Hope this helps.
9/23/2009 10:44:08 PM • Kenwood... • Answered on Sep 23, 2009 • 381 views
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Amp doesnt power on no lights or anything

To test if the amp even turns on take the amp and three wires (does not matter what guage) and connect it straight to the battery. Two wires (one for the power and the other one to the remote) and the third wire goes to ground. This will verify that the amp does in fact work. If this test fails then something has happened to the amp. If the test passes and you see that you do have power to the amp with this test then you know that you have a wire issue. Trace out your wires and make sure that you have a good connection throughout the car. This should fix the problem
4/5/2009 11:01:19 PM • Kenwood... • Answered on Apr 05, 2009 • 276 views
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Power from the kenwood 9103D to the Kicker comp 15's is on n off

Most times I hear of people turning up the volume on a head unit and cutting off on the amp it tends to be wired to a speaker with the wrong impedance. I googled kicker comp and got tons of different models, not to mention almost all of them were 250 watt rms. That amp is 900 watt RMS at 2 ohms. If you only have 1 woofer, you can't possibly wire it wrong being all the subs I've seen in the results were 4 ohm. If you are using just one though, you should get a larger speaker, both 2 ohms and 1000 watt rms to prevent distortion. I'm afraid I can't answer your post without further information on the sub you are using.
8/3/2009 11:29:02 PM • Kenwood... • Answered on Aug 03, 2009 • 403 views
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LED is on, but no sound

If the LED is on then that pretty much means that your remote wire is functioning properly but that does not always mean that the amp has power

The 40amp fuse connects to the main power wire that is run from the battery to the amp and must be connected at the battery end NO MORE THAN 18 INCHES from the battery but the closer you can put it to the terminal the better since this fuse protects you car from extreme damage or fire that can occur if the amp power wire should happen to short out.

TIPS:

Power wire from battery to amp needs to be at least the same size or bigger than recommended for the amp (the longer the wire the thicker it should be)

Always Run amp power wire through a rubber grommet to the engine compartment to avoid wire short that can be caused when car parts move and flex during driving

Run power wire on separate side of car away from RCA cables to avoid noise in the system


11/20/2008 12:54:41 AM • Kenwood... • Answered on Nov 20, 2008 • 91 views
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I recently baught the

It's possible that the installer cheated on wiring gauge, using wire too light for the 12v side causing the voltage to be dropped to a level the Fosgate won't tolerate and causing it to shut down.
If you have a multimeter, monitor the supply voltage at the amplifier while a friend turns the volume up. If you see a significant decrease in the 12 volts, the wire feeding the amp is too light.  
9/23/2008 8:15:58 PM • Kenwood... • Answered on Sep 23, 2008 • 87 views
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No sound from KAC-9103D

What kind of amp is it?
6/19/2008 9:57:07 PM • Kenwood... • Answered on Jun 19, 2008 • 213 views
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Repairing a kenwood amp

With your multimeter set to DC volts, the black meter lead on the ground terminal of the amp and the head unit on (so the amp will have remote voltage applied), touch the red lead alternately to the B+ and remote terminals of the amp. If the voltage is below ~11 volts, you need to check the wiring feeding whichever line is too low.
3/22/2008 2:19:19 PM • Kenwood... • Answered on Mar 22, 2008 • 144 views
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I need a security code of keenwood dpx-MP4100 or rest tips

The best is if you try making one or try to figure it out.
9/11/2021 6:59:56 PM • Kenwood Car... • Answered on Sep 11, 2021 • 162 views
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1answer

How to change language in Kenwood lz-755 to EN, or how to reset?

Hi did you ever find the answer? I'm looking to do the same
8/12/2021 3:15:54 PM • Kenwood Car... • Answered on Aug 12, 2021 • 136 views
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