Question about MA Audio H2K-TP Car Audio Amplifier

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Having no sound.

I have a HK4000D ma audio amp. It lights up and come on but there is no sound. What that could mean.

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  • r_cokley Dec 15, 2008

    My output is gone in it. I got it tested today at the pawn shop. Thanks for the help.

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  • 14 Answers

Try putting your remote wire on a hotwire thats not on your headdeck

Posted on Dec 14, 2008

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1 Answer

My m.a amp whont work. The protection light turns on. what could be the problem


The protection light comes on when a wire is crossed, shorted, loose, etc. Check your wires, and then double check them, at the amp, and from the head unit, you may have a short or loose connection. If you have any kind of Y adapter on your RCA cables, this could also cause this problem.

It could also mean your amp is dead. If this is the case, get it serviced.

Jul 14, 2010 | MA Audio HK4000D Car Audio Amplifier

2 Answers

Gain control


I would check ebay i know i bought one from there before. Hope this helps

Jan 13, 2009 | MA Audio HK4000D Car Audio Amplifier

1 Answer

Ma audio hk 4000d


you have definately blown a output channel, or power supply. Send it in for warranty.

Jan 09, 2009 | MA Audio HK4000D Car Audio Amplifier

1 Answer

My ma audio hk 4000 amp is powered on no sound coming thru subs amps brand new


If there is no protection light on, be sure the input is on. Some head units need to be turned on manually (factory set to OFF).
Verify the subwoofers are wired properly.
A list of your components would help to solve your problem.
If it is new, it should still be under warranty - worst case scenario output transistor(s) blown, or power supply bad.

Jan 09, 2009 | MA Audio HK4000D Car Audio Amplifier

1 Answer

MA AUDIO HK4000D SUBS CUTTING IN AND OUT ???????


for a amp that big you need atleast 2 gauge thats your problem

Nov 23, 2008 | MA Audio HK4000D Car Audio Amplifier

1 Answer

Ok did


It sounds like the capacitor is connected backwards (+/- polarity) or is defective..


Aug 16, 2008 | MA Audio HK4000D Car Audio Amplifier

2 Answers

MA Audio HK4000D please help me ?


Turn the system off and disconnect the speakers. Turn the system on. If the amp still goes into protection mode with no speakers connected, then most likely the output transistors are bad. If the protection light is off, hook up one sub at a time until you find the one that is causing the problem

May 21, 2008 | MA Audio HK4000D Car Audio Amplifier

1 Answer

Amp ???


Ever find a solution? i am having the exact same problem... didnt happen until i plugged in the bass remote they send with it...

Dec 28, 2006 | MA Audio HK4000D Car Audio Amplifier

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