Question about MA Audio M1900XE Car Amp

1 Answer

Amp burned out but fuses still good?

I actually have ma audio m700xe but this was the closest one i can find to it.
i have a 1000watt ma audio amp and a 300watt spx amp and at first i just had the 1000 watt amp hooked up to two 12 inch subs idk what watts but its the pair that come with the amp ma subs.

and when it was by itsel it was extremely loud i had to keep the bass db in the car on -10 i got a splitter for the wire from the power to the battery to hook the other 300 amp up for the door speakers

after i got it all hooked up the bass was no where near as loud if it was on 0db it still wasnt as loud as it used to be on -10

so i hooked everything up like it originally was and it never got as good as it was also i noticed the 300 watt subs sounded better hooked to the subs so i hooked the 1000 watt to the doors and tweeters

then today, four months later i was driving and i all of a sudden the doors went out and all i could hear were the subs i thought it was a bad ground but when i changed the song it would play fine then smoke started coming from my back seat and trunk i got home and checked it everything looked fine

but now my ma amp will not show any signs of power, power light or protection light and my spx amps power will not turn on but when i disconnect the ground the protection light comes on other than the protection light no other signs of power and nothing is coming out of any speakers

grounds ar good the big fuse 6 in away from the battery is good and the 25 fuses in the amps are all fine

what happened

Posted by msp252 on

  • Anonymous May 11, 2010

    You can't know if the power/ground connections are good without using a multimeter to confirm that you have the proper voltages. With your multimeter set to DC volts, the black meter probe 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 probe alternately to the B+ and remote terminals of the amp. If the voltage is below ~11 volts on either the B+ or remote line, you need to check the wiring feeding whichever line is too low. If 'both' the B+ and remote turn-on lines are low and your battery is fully charged, you may have a bad ground connection.

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  • 84 Answers

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....

Posted on Dec 13, 2009

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