Amp turns on then starts making subs go erratic with almost sounds like line nosie

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??

1 Answer

Anonymous

Hi i had the same problem people suggest checking ground thats where you start at then if it aint ground for sure, the make sure you have good rca cables. If there good this is what happen to me i had a cheap ole pioneer 70 doller cd player the actual rc jacks from that cd player was making and horrible sound travel through my speakers im talking humming whinning everything im positive that this will solve your problem email me at [email protected] and let me no something if i helped or if ya need more help

Posted on Jun 30, 2007

Add Your Answer

Upload

Upload an image from your computer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

Loading...

Include an image. It's worth a thousand words.

prev next

Related Questions:

1helpful

1answer

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

Read full answer

Nov 12, 2010 • MTX Thunder TA7801 Car Audio Amplifier

0helpful

1answer

I own a mtx 1501d.Also own a 18

THE AMPLIFIER NEEDS A 1 OHM LOAD AND YOU HAVE THE RIGHT SPEAKER TO PROVIDE THIS LOAD. THE AMPLIFIERS TERMINAL STRIP PROVIDES YOU WITH 2 POSITIVES AND 2 NEGATIVES, BUT THEY ARE ONLY FOR CONVENIENCE WHEN WIRING 2 DRIVERS. ACTUALLY THE 2 POSITIVES ARE THE SAME CONNECTION INTERNALLY ON THE BOARD, AS WELL AS THE 2 NEGATIVES. THAT BEING SAID, THE SIMPLEST WAY TO CONNECT YOUR SPEAKER IS TO PARALLEL THE VOICECOILS IN THE BOX BY CONNECTING THE 2 POS. TOGETHER AND THE 2 NEG. TOGETHER THEN RUN THAT POS. AND NEG. OUT OF THE BOX AND SIMPLY CHOOSE EITHER OF THE 2 POS AND NEG. OF YOUR CHOICE AT THE AMP. IF YOU EVER HAVE TO ADD A SUB, THEN YOU WILL HAVE 2 MORE TERMINAL LEFT OVER ON THE AMP. TO CONNECT IT TO AT THAT TIME. BY ALL MEANS, IF YOU WOULD LIKE TO RUN EACH COIL SEPARATELY OUT OF THE BOX AND CONNECT THEM TO ALL 4 TERMINALS, THEN THIS IS FINE TOO, AS EITHER WAY, THERE WILL BE NO DIFFERENCE WHATSOEVER. LET ME KNOW IF I CAN BE OF FURTHER ASSISTANCE....V

Read full answer

Nov 24, 2009 • MTX Thunder 1501D Car Audio Amplifier

0helpful

1answer

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.

Read full answer

Oct 11, 2009 • MTX Thunder 1501D Car Audio Amplifier

4helpful

3answers

1 ohm stable?

YES IT IS i have the same amp and i have it to 1 ohm its powering to kicker l7's which are 2ohm subs down to 1 ohm stability

Read full answer

May 16, 2009 • MTX Thunder 1501D Car Audio Amplifier

0helpful

1answer

Most power out of amp w/out blowing subs

you may only be able to get but so much out of the subs. If you turn the bass down a little so the that you dont drive the subs so hard you may get a little more wattage out of them

Read full answer

Apr 06, 2009 • MTX Thunder 1501D Car Audio Amplifier

0helpful

2answers

Mtx thunder 1501d

yes you can not run amps with your speakers being grounded un ground and then try

Read full answer

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

0helpful

1answer

Mtx 1501D

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

Read full answer

Sep 16, 2008 • MTX Thunder 1501D Car Audio Amplifier

0helpful

2answers

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.

Read full answer

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

0helpful

1answer

Car audio

hi, your amp seems to be getting power but the cables might be wrong so it's not getting enough power. the light on the amp should be green if everything is going well. are you sure the cables are suitable for your amp?

Read full answer

Sep 11, 2007 • MTX RT202 Car Audio Amplifier

0helpful

3answers