Question about Kenwood KAC-9102D Car Audio Amplifier

2 Answers

Rockford P550.2 going into protect mode

I have a Rockford Fosgate P550.2 pushing a kicker CVX 12 and when it starts hitting good it will go into protect mode and then come back on after a few minutes, then shut back off.... Can anyone help?

Posted by on

2 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 631 Answers
Re: Rockford P550.2 going into protect mode

Does it shut off for a couple of minutes or a couple of seconds? Is the amp hot when it shuts off? Are you sure you have the speakers wired to an acceptable ohm load for the amp? Have you measured the voltage at the amp (across the B+ and ground terminals) to make sure it's not dropping too low on hard bass notes?

Posted on Oct 09, 2007

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer
Re: Rockford P550.2 going into protect mode

Have you tried using bigger gauged wires? If the amp can not pull enough power through the wire it can cause it to run into protected. This solved my problem running a 2000W amp on 12 gauge wire, went to 8 and it worked great.

Posted on Nov 14, 2008

Add Your Answer

0 characters

Uploading: 0%


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


3 Points

Related Questions:

2 Answers

I have a Rockford fosgate P4004 with two 12'

I think you are right about the "fried" part. It would have to be opened up and repaired to be able to use it again

Oct 29, 2012 | Car Amplifiers

1 Answer


speak english sorry to sound like a **** but this sentence makes no sense.

Apr 08, 2010 | Rockford Fosgate P3001 Car Audio Amplifier

1 Answer

I have a rockford fosgate p5002 amp. I have 2 alpine 12" type-r's. I just got them bridged together and my amp keeps going into clipping mode. i tried turning down my gain and adjusting my frequency but it...

Hi unbridge the subs and run them sterio your overloading the amp and its going into protection mode. if you have anymore questions about car audio feel free to ask me...

Feb 05, 2010 | Rockford Fosgate Punch P5002 Car Audio...

1 Answer

Is a kicker zx 2500.1 better than a rockford t2500-1bd?

no way. fosgate is on top of there game right now and is a great amp once again. it will out preform and out last the kicker and i love kicker also but fosgate has this one.

Jan 31, 2010 | Car Amplifiers

1 Answer

Sub Wiring

Hello jtkpay,

Rockford-Fosgate claims their latest V-power 1500bd is stable to 1 ohm, and I would think that your Oldschool would also be. The 2 wiring options for 3 subs with 2 ohm dvc would give you a 1.34 ohm load and a 3 ohm load. The 1.34 ohm option would mean more watts to the subs, but the amp will run hotter. The diagrams look like this:


Using just 2 of the Kickers, you can wire 3 different ways, with final impedances of 0.5 ohms, 2 ohms, or 8 ohms. You do not want the 0.5 ohm load. It's bad for the amp. You don't want the 8 ohm load. It doesn't allow the amp to produce as much power. So that leaves only the 2 ohm, with coils in series and subs in parallel. It looks like this:

Hope this helps. If it does, please rate as "FixYa".

Apr 27, 2009 | Rockford Fosgate Power 1500BD Car Audio...

1 Answer

Multi amp hook-up

honestly i dont think those to amps will push cvxs no matter how you wire them up.
the rms on the 200 should be used to push a door speaker.
the 800watt should deff just be hooked to 1 cvx but still wont max it out.

Dec 25, 2008 | Rockford Fosgate Punch 301M Car Audio...

2 Answers

I have a Rockford Fosgate Puch 1000 watt amp "thermal" problem

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.

If the voltage remains near or above 12v, disconnect all speaker wires from the speaker terminals of the amp and disconnect signal cables from the amp. If it powers up without the thermal LED being lit, the wiring needs to be checked. If it still indicates that it's in thermal protection, it needs to be serviced. A local repair shop will be the quickest. Rockford will email you the schematics.

Apr 07, 2008 | Rockford Fosgate Punch P5002 Car Audio...

2 Answers

Rockford Fosgate 800a2 To 2 SVC 2ohm subs

Ok.. Bridge the two sub into 4ohm than bridge to amp.

So. this how it goes.

sub1 + -
to      | |
sub2 - +
=      4ohm

           From Sub
            -          +  
            |           |
amp (L) - + (R)- +

This will use the full potiental of RF 800a2 amp. I believe it like 1153 watts max out.

Sep 26, 2007 | Rockford Fosgate Punch 800a2 Car Audio...

1 Answer

Rockford Fosgate 501bd question

that amp should work fine with those speakers,just make sure that they(speakers)are wired for 2 500-600watts coming from amp, you should be getting 250-300 watts per speaker,just dont crank your gain too high on the amp.

Aug 29, 2007 | Rockford Fosgate Power 501BD Car Audio...

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

Related Topics:

244 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