Question about Jensen 100W x 4 Amplifier KA5 Car Audio Amplifier

1 Answer

Car every time we turn the car on it turn on but if also turns off when we let off the gas

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that gotĀ 5 achievements.


    An expert whose answer gotĀ voted for 20 times.


    An expert who has answered 20 questions.

  • Expert
  • 102 Answers
Re: car

Your battery is probably not able to supply the current needed to power the amp and your alternator is not supplying enough charging current when idling. Check these two and the wiring to the amp.
Should be some sort of decent stranded copper wiring able to handle the power consumption of the amp. When you have access to a multimeter do check the voltage at the amps 12 volt power leads and when this is below 12 volt when idling I would suspect wiring and/or alternator/battery.

Posted on Jan 12, 2008

Add Your Answer

0 characters

Uploading: 0%


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


3 Points

Related Questions:

1 Answer

Blue light on top flashing???not powering subwoofers.. was working fine.( blue light stayed on.) When I noticed it I shut the system down immediatley!!! Have'nt turned sytem back on since. What should I do...

You amp went into protect mode from an abnormal condition. Were you hammering on this amp when that started? I might suggest letting up on it a bit if so. Also check your wiring. Make sure all are insulated well and fully connected. It cut the noise off because if it would have continued it would have blown your amp. Make sure the fuse is good as well. Perhaps it is getting weak. Turn things down and turn the amp on. Give it a chance to cool for a bit first and then turn things down and turn it on. Everything a go? Then turn it up a bit then. My guess is it was getting worked a bit to hard and went into protect mode. Give the amp a rest from time to time. Good luck.

Mar 06, 2011 | Pioneer Car Amplifier GM-7100M - Mono Bass...

1 Answer

My amp would turn on and off and one time it just stopped working its a powerful amp want to fix

Disconnect all speaker connections and rca cables. Leave power, ground and remote wires intact. Try turning on again. If you still have a protection light your amp is faulty. Hopefully you have warranty. Contact Kicker to have them repair. .A thumbs up would be greatly appreciated if this answer is helpful to you.

May 20, 2010 | Kicker KX500.2 Car Audio Amplifier

1 Answer

Every time i turn on power it snap the reset breaker. and won't power up.

unplug everything but the 12v power/remote power and ground. turn on and see if it triggers the safety. if it does you have a short in the amp. if it turns on and stays on, plug one cable in at a time to see whats making it trip.

Sep 24, 2009 | Peavey AMPLIFIER, 1000 WPC, DDT, 8/4/2...

1 Answer

Black smoke and plugs no power under load

if theres an excissive amount of black smoke, then you have a fuel problem. something i sletting way too much gas into your engine. the most probable cause is a bad fuel injector o-ring. to check this, fijrst take off the air intake. while your under the hood, keep an eye on the inside of the throttle body., while a friend sits inside your truck and turns on the ignition. dont try to start the vehicle, just turn the keyswitch on. if the injector o-rings are bad, you should see gas leaking from the injector inside the throttle body. it will be pretty obvious. this is assuming your truck has throttle body fuel injection. you didnt say what year it is...

Aug 31, 2009 | Car Amplifiers

1 Answer

Buick regal

Some next steps. You need the engine to turn - you have that, fuel supply, and proper engine timing in order for the engine to start. The "chug hard..." could be related to engine timing.

I would start by reading the diagnostic codes in the engine - these are stored even if the check-engine light goes out.

Next I would check fuel pressure and fuel filter to be sure we don't have a fuel delivery issue.

Next step would be engine timing, distributor or crank shaft sensors - I'm not sure about what the 95 has in it.

Aug 31, 2009 | Car Amplifiers

2 Answers

Change Oil Reminder

dis-connect battrye for ten minutes and see if dont vehicle need to scann and diagnose problem

Mar 26, 2009 | Orion Cobalt 2105 XP Car Audio Amplifier

1 Answer

Subs wont play music

Sounds like your RCA's are the source of your problem. Unplug your RCA's before you turn your car on. You may need to isolate your RCA's and the ground wire on the back of your head unit.

Feb 04, 2009 | Metrik Amplifiers MAX-1202 Car Audio...

1 Answer

Getting shocked by my truck

Yes it is..Its only static electricity.. But be careful if you are getting gas.. Do not start pumping gas and then get back in to your truck while pumping and then get back out and grab nozzle WITHOUT touching metal first.. Even a little static can ignite the fumes..Rule #1.. Ground yourself before touching the gas nozzle..

Nov 11, 2008 | Alpine MRP-F250 Car Audio Amplifier

1 Answer

Iwont turn on

It sounds like the amp is shot but there is a few things you can try.You can check the ground it has to be metal to metal make sure there is no paint,plastic,washers ect in between the wire and the metal if you cannot find a paint free surface get some sand paper and sand the paint off.If your current ground hook up still dosen't work then try to ground it in a different area before drilling any new holes for the ground check and make sure you won't be drilling into the gas tank otherwise is will cause gas fumes in the vehicle.If this isn't the problem check your inline fuse on your amp battary cable to make sure it's not blown if it is replace with a higher amp fuse.If it still don't work after that check the remote wire this is the wire running from the power antenna on the stereo and it runs to the remote on the amp this turns the amp on when you turn the stereo on.If u need more help with this problem get back to me i will be glade to help.

Oct 26, 2008 | Kenwood KAC-5201 Car Audio Amplifier

1 Answer

Turns on 1 out of 4 times?

The problem might not be with the amp. You will need to check the "remote" output from your head unit at the amp end using a voltmeter. It should be ~12.5 volts dc when the head unit is turned on. If there is no voltage when the head unit is turned on, then the problem is not the amp. The head unit may be bad or there may be an intermitant short somewhere in the remote wire.

You can test the amp by removing the remote wire and connecting the remote input directly to the +12v terminal. Use a short scrap of wire. This will (should) manually turn on the amp. Don't forget to return the remote wire to the remote input or the amp will never turn off.

A friend of mine had his remote wire shorted to ground once after he replaced his head unit. Turns out when he slid the new one into the dash opening he pinched the remote wire against the chassis. Frustrating but an easy fix.

Sep 03, 2008 | Kicker 06ZX750.1 Car Audio Amplifier

Not finding what you are looking for?
Jensen 100W x 4 Amplifier KA5 Car Audio Amplifier Logo

Related Topics:

42 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jensen Car Amplifiers Experts

Andrew Taylor
Andrew Taylor

Level 3 Expert

9503 Answers

Trippy Tripp

Level 2 Expert

191 Answers


Level 3 Expert

4507 Answers

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

Answer questions

Manuals & User Guides