Question about MTX Thunder 1501D Car Audio Amplifier

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My mtx thunder 1501d car amp making noise in the subwoofers

Hey i got an pioneer deck it's an deh-3900mb cd player that an friend of mind let me have because he said when he was hooking it up he touched the speaker wires on the back of the radio and then he didn't get no more sound out of it so i took it and put in my car and hooked up through the rca's jack cause they still work but it has the noise when u hit the gas it makes that wineing noise and do the volts on the radio got somthing to do with cause my pioneer is 2.2 volts they told me at mtx when i had call them that this amp needs an 4-8 volts just to get an high gain out of it thats y they think the noise coming thought the spreaks and do u think i need another cd player can u help this problem.

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This is common with pioneer head units, the rca jacks are not properly grounded and this lets engine noise come through the rcs cables. This thread explains a fix http://www.caraudio.com/forum/showthread.php?t=337644.

Posted on Jan 03, 2009

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1 Answer

1501d,, What subs should i use/


I would stick with Kicker or MTX. The best place in my mind to get them is soncelectronix.com
Just try to mach the specs as close as possible. Make sure to look at the recommendations of the subs for the size of the box and the port volume.

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Nov 26, 2008 | MTX Thunder 1501D Car Audio Amplifier

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Although open shields on the head unit generally cause MTX amps to squeal, it can sometimes cause the symptoms you described. To check the shields, you will need a multimeter. The procedure is on the following page:

Testing for Open Shields on RCA Signal Cables

If the shileds are OK, we will have to check a few other things.

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ARE U USING THE CONTROLS THAT CAME WITH THE AMP?
USUALLY THE CONTROLS CABLE GOES BAD

May 08, 2008 | MTX Thunder 1501D Car Audio Amplifier

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Hi i have a mtx 1501 d


If it does it with no RCAs plugged in, the speakers or wiring need to be checked.

If the speakers and wiring are OK, the amp may have shorted output transistors.

Apr 10, 2008 | MTX Thunder 1501D Car Audio Amplifier

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