Question about MTX421D Car Audio Amplifier

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AMP troubles Why would my amp keep blowing fuses every time i stick it in

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  • cnnn_crts Sep 24, 2008

    Why would my amp keep blowing fuses every time i stick one in ?

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Most likely you have a bad ground, Take all the wires out running to it then put the fuses in, check you ground, then install everything back

Posted on Sep 25, 2008

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1 Answer

Rockford Fosgate Punch P325.1 Amp keeps blowing fuses every time I start the car. What is going on?


well if the amp works with the car off and when you start it the fuse blows then you may have alternator issues use a volt meter to check battery voltage is not above 14.5 volts
if the fuse blows when the amp turns on then most likely you have a shorted output section in the amp.

Mar 18, 2010 | Rockford Fosgate Punch P325.1 Subwoofer...

1 Answer

AUDIOBAHN A2601X AMP FOR CAR KEEPS BLOWING A FUSE


its probably something lose inside ur amp that causing the amp to ground out ur fuses every time

Feb 22, 2010 | Car Amplifiers

1 Answer

I have a dual XIA3145 580 watt amp that keeps blowing fuses


Generally, this indicates that there's at least one shorted output transistor.

Disconnect all speaker wires from the 'amplifier's speaker terminals' and disconnect RCA/signal cables from the amp. If it powers up normally, the speakers/wiring need to be checked. If it still blows the fuses, the amp almost certainly has shorted output transistors and will need to be repaired.

I'd recommend using two 10 amp fuses. The amp will power up with 10 amp fuses if there is no problem. If there is a problem, there's less of a chance of doing more damage by using the 10 amp fuses.

Let me know if you have any other questions.

babin_perry@yahoo.com

Sep 04, 2009 | Dual Electronics illumiNITE XIA3145 Car...

1 Answer

Im having trouble i keep blowing fuses on my amp?


you have you gain and freq knobs turned up too far, try turning them down and turn down subb level from deck

Apr 13, 2009 | Rockford Fosgate P3001 Car Audio Amplifier

1 Answer

Keeps blowing fuses!!!


HI ..PUT AN AMP METER IN LINE TO SEE WHAT THE AMP IS DRAWING..WHEN IT IS CRANKED UP ..IS 20 AMP WHAT IT CALL FOR ON THE AMP IF SO I WOULD NOT GO ANY HIGHER.....BUT IF YOU HAD JUST USED 20 AS A STARTING POINT FOR AN AMP-AGE...SOMETIMES IT IS BETTER THAT THE FUSES BLOW ONCE IN AWHILE THAN THE AMP...ALSO CHECK FOR A LOOSE GROUND.....GOOD LUCK

Jan 29, 2009 | Planet Audio VX2002 Car Audio Amplifier

1 Answer

Help my fuse is blow!


If the amp blows fuses only AFTER you send remote turn-on voltage to the amp, the amp probably has blown output transistors. To eliminate other possible causes, read through the following page.

Amp Troubleshooting

Let me know if you have any other questions.

Aug 25, 2008 | Eclipse Premium 34230 Car Audio Amplifier

1 Answer

Amps


If the amp blows a fuse with no remote voltage applied, the amp has a short in the primary side of the power supply. If the fuse only blows after remote voltage is applied, the amp probably has shorted output transistors.

May 02, 2008 | Boss Riot 1500D Car Audio Amplifier

1 Answer

AMp keeps blowing fuses


When any amp blows fuses, this indicates that something is drawing too much current. The most common cause are components in the output stage and driver stages that have become defective.

On the amp that is blowing the fuse with the volume being turned up, this means that the output stage is partially working. The short or over-draw of current must be in the output stage, or what is loading it. It is possible in this case that a crossover in a speaker unit is defective, and is drawing too much current. I have seen this with especially sub-woofer crossovers, and the driver itself. Subs pull a lot of current because of the amount of drive power required to have very strong bass sounds. Other than that, this still does not rule out the possibility of the problem being defective components in the amplifier.

Jerry G.

Apr 25, 2008 | Car Amplifiers

2 Answers

Blowing fuses


Here are some answers:

1. Make sure your amp does not have a higher amp rating then the fuse, For example, an 18 amp amplifier will blow an 15 amp fuse, so connect it to a 20 amp fuse

2. you have a connection issue, where something is shorting out

3. you are pushing the amp or car to it's limit with how loud you put it, and thus blowing it, fixed by getting a more powerful amp and a better fuse.

4. or there is something very wrong and cannot help you and you would have to bring it into a shop.

Nov 18, 2007 | Car Amplifiers

4 Answers

AMp keeps blowing fuses


http://www.howtodothings.com/electronics/how-to-fix-the-fuse-on-your-guitar-amplifier

Hi You can refer to my detailed solution above...if you still have issues please feel free to contact.

Thanks

Feb 15, 2007 | Kenwood KAC-7202 Car Audio Amplifier

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