Question about MA Audio HK4000D Car Audio Amplifier

1 Answer

Thanks well im going to by a meter as soon as sears opens up how do you know if your amps blown and needs to be returned

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 631 Answers

If your amp has ~12v DC on the remote and B+ terminals (with the black meter probe on the ground terminal of the amp) and no fuses are blown, the amp is defective.

Posted on Aug 16, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

I have a A1200 DX ample audio amp i hooked my 2 12" speakers anf as soon as i turnd it on one ov my speakers started to smoke rill bad im shore its tost but what did i do wrong


You might not have done anything wrong. The thing to do now is get a meter and put it on the amp so that you can see if the amp is putting out straight voltage at the speaker connections.

Mar 15, 2015 | Ample Audio Car Amplifiers

1 Answer

Hi everyone i am soon going to be putting a system in my car i am ordering 6 rockford fosgate p1s4 subwoofers each are rated 250-500 watts rms then i have a old pair of mtx thunder 7500s sitting there they...


It's possible that you may need a second battery AND a larger alternator. What you are doing is overkill. The human ear can only hear so much. When those woofers all get going, you could run into resonance problems that could cause serious distortion and / cancellation of certain frequencies. Also , sub bass sound in non directional. It won't matter too much about speaker placement. You didn't mention the type of car this is going into. Give that and I may be able to give you better information.

Nov 02, 2013 | Car Amplifiers

1 Answer

JL Amp isn't powering subs and speakers


just go through ur connections man one by one ull find the prob soon.....check teminals on battery...power line to amp ....all fuses within prob area and obviously make sure u have a good ground.....really impotant.....ground is the most neglected thing people do from my experience bein a audio tech oh and if that isnt it check ur subs....stick a 9v batt on the back pos n neg of each sub n c if they pop in r out this will determine if ur subz r blown

May 14, 2010 | Jl Audio 500/1 Car Audio Amplifier

2 Answers

Smoke was coming out of my subs and it was alot.


Open the sub box and see what it looks like before you go purchasing stuff with no problem for certain. You may have had wires touch and they will smoke. Also try connecting a different speaker to the amp and see if it works. this lets you know if the amp/speaker is working or not

Sep 07, 2009 | Jl Audio 500/1 Car Audio Amplifier

1 Answer

Sub cuts out


With your multimeter set to DC volts, the black meter lead on the ground terminal of the amp (not on the point where the ground wire connected to the vehicle) and the head unit on (so the amp will have remote voltage applied), touch the red lead alternately to the B+ and remote terminals of the amp. If the voltage is below ~11 volts, you need to check the wiring feeding whichever line is too low.

If the voltage remains near or above 12v, the sub may be damaged. You'll need to measure the resistanace of the voice coil. It shouldn't read less than ~85% of the rated impedance.

Oct 26, 2008 | Cadence Z8000 Car Audio Amplifier

1 Answer

Rockford Punch 550.2 amp wont play


The amp is blown and need to be repaired.
You can contact Rockford direct to find a repair dealer.

Apr 16, 2008 | Rockford Fosgate Punch P550.2 2-Channel...

1 Answer

Bass perfect when I drive but as soon as I drive slower it goes softer?


Sounds like maybe you are not getting enough power to your amp. It sounds like you have a pretty powerful amp and it could be you don't have a large enough cable going back to your amp. If you have access to a volt meter then you could take a reading of your "12volt" power connection at the amp while stopped and amp running to see if you do indeed have 12 volts or better. If it is getting down to 11 or 11.5 volts then you will need to improve that. I have a saying that when you have a huge amp you must wire it as if you are trying to power your cars starter motor from the trunk and wire accordingly. And that means your ground connection too. Don't forget the ground connection from the battery to the car's chassis. Maybe this will help. Good luck.

Mar 31, 2008 | Generic Memory Clif Designs 4000W Digital...

1 Answer

Subs


2x12 in sub each duel voice coil can iether wire to 1 or 4 ohms. im guessing you have everything wired up in series (1 ohm) and aer probably burning out the amp.

http://www.crutchfield.com/learningcenter/car/subwoofers_wiring.html?imageID=2DVC%5F4%2Dohm%5Fmono

Feb 25, 2008 | Car Amplifiers

3 Answers

Kenwood KAC-7202 wont turn on


I have found the problem to my Kenwood KAC-7202. The amps fan was the only thing that would come on thats it. So I started checkin zener diodes cause all transistors checked out fine. So I remember readinf about a guy that had same problem and took it to a shop and they said it was some diodes. Well, thats what I was thinkin or the transformer. It turned out that 1 zener diode was no good, diode D9 1ss133. I took a zener out of an old vcr I use for parts and put it in and the fan came on as usual then the red light. Then I hooked my mp3 player to the rca input and hooked up some speakers and it works great. Hope this helps you other guys with the same problem. Check your zener diodes with a digital volt meter, if you get any measurement other than the reverse impedance which will read between 600 and 1200 ohms some lower or higher and then reverse the leads on your meter and if you get any reading it's no good and the reading will be 0-50 cause mine read 047 ohms.

Feb 09, 2008 | Kenwood KAC-7202 Car Audio Amplifier

Not finding what you are looking for?
MA Audio HK4000D Car Audio Amplifier Logo

Related Topics:

41 people viewed this question

Ask a Question

Usually answered in minutes!

Top MA Audio Car Amplifiers Experts

Robert Rankin

Level 2 Expert

338 Answers

Ronald Prier

Level 1 Expert

26 Answers

sonic boom...
sonic boom...

Level 3 Expert

1557 Answers

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

Answer questions

Manuals & User Guides

Loading...