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Kenwood xr400 amp shutting off

After turning up the volume, my kenwood excelon xr400-4 amp shut off and I had to reset it to get it to come back on. It did not feel hot.

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Posted on Jan 02, 2017

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zzedly
  • 300 Answers

SOURCE: Kenwood Excelon KAC-X521

According to page 7 of the radio's manual, E-02 means the amp has failed and DC is being applied to the speakers. It also says "Turn the POWER switch "OFF" and release the protection."

Posted on Mar 05, 2008

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tech48
  • 624 Answers

SOURCE: Kenwood eXcelon KAC-X810D

On the top of the amplifier are 4 controls. The first one is labeled as "input sensitivity". That is the adjustment you need to make. It would need to be set at around mid way between minimum and maximum.

One way for you to set it perfectly for your speaker would be to have it set first at about 1/4th of maximum, and then with the volume of the head unit turned all the way up with some heavy bass playing start to turn the input sensitivity up very slowly until you hear a small amount of distortion or rattling from the sub woofer. At that point you would back it down just a touch until there is no distortion or rattling from the speaker. This would have your amplifier set at a point where it is not pushing the speaker too hard but you would be getting the most from it.

Remember that any time you hear distortion, you are either pushing the speaker too hard or the amp too hard. The distortion is caused by clipping, which is not a good thing. If there is no clipping from the amp, and no abnormal sound from the speaker, you have it set properly to get the most from both the amp and the speaker and you are then minimizing the chance of damaging either the amp or the speaker.

Very wise decision on your part to want to use your equipment properly and not expect more than it is actually capable of. Many people just push their equipment to the max and then complain about how it broke down on them. If you follow my instructions you should be able to keep your sub woofer and amplifier in good working condition for as long as possible. It is no guarantee that it will never break down on you, but you will at least give it it's best chance for longevity.

Posted on Aug 26, 2008

  • 2 Answers

SOURCE: Volume turned up, kenwood shuts off briefly...

does it keep cutting in and out?
if so i think you have your polarities crossed
make sure you have negative to negative positive to positive

Posted on Jan 28, 2009

dunnbiker
  • 8546 Answers

SOURCE: Anyone know the protection reset button combo for

Plug it back in WHILE HOLDING the POWER key.

Posted on Mar 11, 2010

adamncc1701
  • 158 Answers

SOURCE: my kenwood vr615 reciever had the volume turned

hello ,i strongly suspect the units protect circuit is sensing a speaker problem.Listen to each speaker to see if all the drivers(woofer,midrange,tweeter) are working and if so are any of them sounding distorted.When an amp is damaged it wont play at all,sounds like a bad speaker to me.

Posted on Jan 09, 2011

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I bought a car with a Kenwood KDC X 569 system and when I went to lay the remote down the system turned off I don't know if I hit a button or something but it wont turn back on please help


Kenwood Excelon KDC-X569 - Crutchfield

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Dec 03, 2015 | Kenwood Car Audio & Video

1 Answer

Kenwood kdc-mp142 why does it shut down when


Have you checked your speaker wiring as it could be you have some wires crossed ie: negative feeding the positive side causing the shut down & check the Ohms if at high volume you are trying to drag to many Ohms it will also cause the built in amp to shut down to protect the system dont keep incresing the volume as the strain will do damage

Sep 18, 2014 | Car Audio & Video

1 Answer

What's your problem?Kenwood kac-6295 shuts off then turns back on at high volumes


You got a (Problem) I have never heard of a amp doing that, In the 40 pus years, That i was a certified electronc technician, But like they stay you learn something new everry day,

Nov 06, 2012 | Car Audio & Video

1 Answer

I have a kenwood kac-9152d amplifer and it works just fine for about 10 minutes then just shuts off and subs dont work, about 30 seconds later my amp turns back on with the subs.


make sure it's well ventilated. If there's no air flow, then there is no way of cooling down and to protect itself it will shut off. Make sure the speakers are wired correctly as per amp specs. too many subs or subs connected improperly can draw too much current and shut the amp off, but you will notice this when you turn up the volume to a certain point and the amp shuts down.

Aug 30, 2011 | Kenwood KAC-9152D Car Audio Amplifier

1 Answer

When I raise the volume the music turns off. What would be the cause of this?


2 things could shut your amp...to low of a ohm load, or very low voltage drops. I need some more info to help you out.
1. Is the amp really hot when it shuts off?
2. Is it a mono sub amp or 2 channel stereo amp?
3.What ohm's are your subs & are they SVC or DVC?
4. How do you have them wired to the amp?
You can email me at thefowlerfam09@yahoo.com I have a idea whats going on just need some more info.

Apr 02, 2010 | Kenwood Excelon KAC-X521 Car Audio...

1 Answer

Volume turned up, kenwood shuts off briefly...


does it keep cutting in and out?
if so i think you have your polarities crossed
make sure you have negative to negative positive to positive

Jan 27, 2009 | Kenwood KDC-X692 Car CD/ MP3 Player

1 Answer

Amp shutting off


your amp is likely over heating.Does it have enough air space around it? You may be over driving it does your head unit have variable out put? if so try lowering the output volume to the amp
Hope this helps...........Good Luck!

Dec 14, 2008 | Kenwood KAC-9152D Car Audio Amplifier

2 Answers

Kenwood KAC-9152D monoblock


The amp says it's 1 ohm stable, so assuming the DVCs are dual 4 ohm, you should be able to connect all "+"'s together and all "-"s together, like the picture below:
0f1cebe.jpg

As for the amp shutting off for a few seconds, it sounds like it's either:
A) Not getting enough power at high volume.
OR
B) Overheating.

The cap on the +12V to the amp should help, but putting a meter on the +12V might tell you whether it's dropping too low (<11V).

When you first turn the volume up, how long does it work fine before shutting off? Is it with the vehicle running or not?

Mar 25, 2008 | Kenwood KAC-9152D Car Audio Amplifier

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