Question about MA Audio HK4000D Car Audio Amplifier

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

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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.

Posted on Jan 09, 2009

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I have the amp hooked up and the power light comes on, but there is no power going to my subs.


Check your gains. Make sure they are not turned down all the way. Are you getting audio to the amp. Use an MP3 player with a headphone to RCA cable directly into the amp to make sure your getting sound. Check the speaker wire to the subs. Make sure they didn't get disconnected moving the box around.

Apr 19, 2011 | MA Audio HK797 Car Audio Amplifier

3 Answers

I have a Lanzar 4000 watt amplifier hooked up to 2 12inch MA Audio subs. When I crank my car the green power light on the amplifier comes on, but after a second or two it changes to protection mode. I have...


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. Time to get an old school Opti Drive. .A thumbs up would be greatly appreciated if this answer is helpful to you. lanzar-4000-watt-amplifier-hooked-up-2-shonxoarcym4awy4zl1imx4o-2-0.jpg Lanzar

Jan 29, 2011 | Lanzar VIBE286 Car Audio Amplifier

1 Answer

Amp burned out but fuses still good?


this is caused by inproper wiring from the speakers/subs to the amplifier.. an amp will still put out power to subs and speakers when it's wired improperly but it won't last for very long doing it... 6 months is longer than usual....

Dec 05, 2009 | MA Audio M1900XE Car Amp

1 Answer

My ma audio hk 898 will power on but will not push subs at all what can i do


Hello 76firebirdfo,

If there's no sound at all from the subs and you know they are good, there's probably no output from the amp. It's either wired incorrectly or it is defective.

If there's some sound but just not loud enough, then either the amp is not getting enough of an input signal from your head unit, or the amp settings are not adjusted properly. Adjust the crossover and gains for the best output to subs. LP filter on, crossover frequency at about 80-100Hz, and gain to maximum without distortion when head unit volume is at about 3/4 maximum.

Hope this helps.

Jul 14, 2009 | MA Audio Hard Kore HK-898 Car Audio...

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

No power


You probably have ONE of the speakers wired out of phase.

If the speakers are wired correctly, you may have the crossover set to high pass instead of low pass.

Let me know if you have any other questions.

Aug 11, 2008 | Lanzar VIBE286 Car Audio Amplifier

2 Answers

Is it enough


Audiobahn subs are not too powerful and they can not handle too much continuous RMS, be careful they will heat up and tear off the voice coils off ur subs. run about 100 - 150 RMS at 75 HZ to each sub and keep the gains at about 3/4 this way you will avoid blowing out your subs. It also depends on the amp? What kind of amp is it?

 

Let me know if you wish. Otherwise

Oct 21, 2007 | MA Audio HK4000D Car Audio Amplifier

2 Answers

Amp heats up and goes into protect mode


Hi Saint108. You're describing it well, and i know what the problem is already. The MA audio amp, can't hold with a 2 ohm load. It's too low for that amp, that's for sure. Those are budget amps and they are not well built enough to handle low ohm setups like that. It's overheating and there's no ways around it.. Other than wiring your subs differently ! Just wire your sub directly (not in parallel) in a 4 ohm load, you will notice it will stop overheating that much. Do it quick, you'll most likely fry your amp giving it such hard work !! The HUM you're hearing could be related to it also. Try that, and keep me posted on the status. Thanks ! Cheebster.

Jul 02, 2007 | MA Audio Hard Kore HK-898 Car Audio...

1 Answer

Driving in first gear


Your Amp is in protect. Disconnect your subs and turn it back on. IF the led goes back to green the you have a blown Sub and it will need to be replaced. If the amp stays in protect even with the subs removed the the amp is toast.

May 29, 2007 | MA Audio HK2000D 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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