Question about Kenwood eXcelon KAC-X812D Car Audio Amplifier

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My KAC-X812D amp is stuck in safe

How can i get my amp out of safe mode?i had fior about aa year and 3 months after i bought it the watts dropped while i was driveing and know it only puts out not even half of what it use too,i had it disconected for about a week but it's still not working like the day i bought it

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From what you are explaining here, it suggests that there is an internal problem with the amp (Blown mosfets, pre-amp etc.) I suggest taking the amp to an authorised service centre.

Posted on Aug 31, 2007

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Best subs for the kenwood x812d


Try and match the rms output of the amp to the speaker , if the amp puts out 150 watts RMS make sure your speaker is at least 150 watts RMS.

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I don,t no where you are reading thease articles from,I installed car audio equipment for over 40 years, Untill i retired a couple of months ago, Who ever is writeing those sort of articles does not have the slightest clue what they are talking about, It is the opposite way around, It is allway better for yor (Speakers) To handle more power then what your amp puts out, Then you will not blow the spaekers, It is best to get speakers at least 20 watts more then what your amps maximuin (RMS) Watts are, Hope this helps you out, (PS) 50 watts (RMS) Is what most people go for, It is in no means (Under) Powered.

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1 Answer

Car amp not working


Well, it may be fried. Be more specific please. Did it ever work, does it turn on but no sound? There are multiple reasons why an amp won't work. Whats your actual problem

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i have a Kenwood KAC-X812D amp and a alpine SWR- 1242D Subwoofer in a sealed box. What is the best setting i should do for this amp. HEADUNIT KDC- X592

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1 Answer

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I believe that the amplifier is in protection mode; more than likely you either have an internal short in the amp or a bad speaker running off of the amp.

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1 Answer

Transistors


If it's only 2 months old, it should be under warranty. Have you tried to get it repaired under warranty?

Any car audio repair shop should be able to repair it.

If you want to repair it yourself, it's possible but you'd need basic test equipment and soldering/desoldering tools.

The following page shows you the basics for amp repair. Your amp is somewhat different than the one shown but the troubleshooting/repair procedure would be similar.

Basic Amp Repair Primer

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