My 1501d is making a wierd noise when i turn it on almost like an amplifed line noise but thats not the problem??
I have an mtx 1501d amp. that was hooked up to 2 kicker L7 15s and when i turn on my radio and turn the volume up in any way my subs start making a weird and really loud noise almost like an amplified line noise it use to work fine till i blew a tranistor i had all three in the set replaced and turned it on and it was working fine till it started to make this noise i hooked up another amp and they work fine all the subs are at the perfect ohms and wired right but the amp seems to have a prob. Any suggestions??
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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.
Remove cover and set in direct sunny window for long time, may be no problem with it, Took a month to dry one of my amps out enough that it decided it would come back to life, cell phone dropped in sink took 2 weeks, If you try power to it too soon --fried--, good luck finding diagram and repairing it sincerely-hope its okay, good amp, bad luck,
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.
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:
if your power light is on then check your preamps (sub out from head-unit).Maybe you need to turn on that output thru head unit's audio menu.Also when using dual voice coils if you wire them out of phase there will be no output