Question about MTX Thunder TA7801 Subwoofer Mono Amp Car Audio Amplifier

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I have a mtx ta7801 amp that was working fine and just stopped i have changed fuses and hooked to direct power and still get no leds or sound

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Take it to service center, you have internal problems

Posted on May 05, 2009

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I have a MTX 300XD...it just stopped working. I tightened everything up and it still doesn't work. the red light is on but there is a green flash and when it flashes it makes a noise that I can hear...


What is the electrical system in the different car like?You may need to get a secondary battery for that amp.Also ceck your in line fuse,it may need to be larger.Sounds to me like you either do not have enough power,or a ground is not connected.

May 20, 2011 | MTX X Thunder 300XD Car Amp

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I got a mtx ta7801 amp every time I hook it up it says short even when no rca our speaker wires are attached any one have any clue as to whath is wrong


Im sure you have but check all the fuses and be sure ground/power is in the right spot, and check remote wire for cuts

Dec 17, 2010 | MTX Thunder TA7801 Car Audio Amplifier

1 Answer

Can you bridge 2 4 ohm kicker speakers to a mtx thunder 7801 amp?


Ya. Just hook one sub to your amp (bridged) and hook the other sub (positive and negative) to the first subs positive and negative

Nov 12, 2010 | MTX Thunder TA7801 Car Audio Amplifier

1 Answer

Mtx 1000xd led light is flashing and the subs will not work


The light flashing usually means there is a short somewhere. Check your wires to make sure there are no slices and are touching. Also check to make sure you have your remote wire hooked up.

Sep 19, 2009 | MTX X Thunder 1000XD Car Amp

3 Answers

What gauge wire should i use for my mtx7801 amp


Since the distance is short, you can go with 14 gauge wire but 12 is pretty much the best you can use...

May 16, 2009 | MTX THUNDER7801 SUPER AMPLIFIER CLASS D...

1 Answer

Amp is a mtx 801d not sure


no you will not blow it out by hooking up both voice coils. But First before you do, what oms are they. and is your amp one oms stable? There a lot of ways you can wire double voice coil. But if you can get me that info i can send you some digrams to help you out and tell you whats best.

Oct 05, 2008 | MTX Thunder TA7801 Car Audio Amplifier

2 Answers

Mtx 1501d no sound


There are a number of things that can cause it to act as you described. Have you pulled the covers off of it yet to see if you can see any problems?

If you do, disconnect power from it and don't touch ANYTHING on the board when ANY of the 3 LEDs (2 are not visible from the outside) are lit.

Aug 19, 2008 | MTX Thunder 1501D Car Audio Amplifier

1 Answer

Mtx ta7801 amp not working


Depending on where you live, Car Tunes is a good place to fix it but it might cost a good amount. I have a mtx 1501XD and the same problem, lights but no sound i saw no marks inside mine however. They told me i was better off buying a new one bc it was going to cost so much to fix most likely. That was coming from a guy I know so they were just trying to **** money out of me either, he does sound for a living.

Feb 25, 2008 | MTX Thunder 8302 Car Audio Amplifier

1 Answer

Amp is not coming on


the fuse may not be working, you could try a larger sized one, also if you have the old power cable try it again with a larger fuse in place, if it worked before its likely to just be the fuse wasnt big enough, check all the other connections are in the right place, if they all are and you know the amp hase worked before then it could only realy be the fuse isnt big enough or the power lead is faulty.


cheers, adam

Nov 17, 2007 | MTX Thunder TA7801 Car Audio Amplifier

2 Answers

My amp doesn't turn on...


If there is a zero ohm connection across the B+ and ground terminals, it should blow the fuse as soon as you apply power.

 

 

 

Oct 10, 2007 | MTX Thunder TA7801 Car Audio Amplifier

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