Question about MTX Terminator TN400/4 Car Audio Amplifier

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When i turn up the volume to a certain point my subs pop.

The light on the amp turns yellow. When i start the car again its red and works fine till i turn them up again. How do i fix this.

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  • 88 Answers

Low Ohm speaker configuration or bad current intake. how many speakers you have on it? what size of power cables you use?

Posted on Jun 02, 2010

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1 Answer

I have a kenwood kac-9152d amplifer and it works just fine for about 10 minutes then just shuts off and subs dont work, about 30 seconds later my amp turns back on with the subs.


make sure it's well ventilated. If there's no air flow, then there is no way of cooling down and to protect itself it will shut off. Make sure the speakers are wired correctly as per amp specs. too many subs or subs connected improperly can draw too much current and shut the amp off, but you will notice this when you turn up the volume to a certain point and the amp shuts down.

Aug 30, 2011 | Kenwood KAC-9152D Car Audio Amplifier

1 Answer

When i turn my volume up to a certain point the power light on my amp will blink off and on and the subs will cut off...what could be some possible solutions? is the amp not suppose to be tuned up? it...


Sounds like you are showing too low of an impedance load to the amp. The E1200 is only stable as low as 2 ohms. If your subs are wired to show lower than a 2 ohm load then the amp will go into protection mode as the volume or gains are turned up

Dec 23, 2010 | Jl Audio E1200 Car Audio Amplifier

1 Answer

Sound disappears if volume is increased.


It sounds like when your increasing the volume the amp is either trying to put too much watts out or it's not getting enough power to do what you want it to do. Personally i think that it's being worked too much. That's why the amp light turns from yellow to red.

Mar 06, 2010 | Car Audio & Video

1 Answer

My punch 550.2 amplifier's thermal light is turning on and off


well, hopefully the amplifier was wired correctly. But either way there are so many factors that can cause this problem... But the biggest one is the amplifier must have been sending some distortion to your subwoofers which a subwoofer can take a certain level of distortion and be fine but too much will blow any subwoofer even the highest of high end subs at a high volume... when your subs hit the point of blowing they will tend to just blow out one at a time... they don't just pop both right away. I'd say get the sub that isn't blown off off of the amp before it blows too... distortion is clipping most of the time... when you destroy the subs it will eventually work it's way to the next component in the system which is your amp and then you will be out an amplifier and subs. save yourself the headache.......

Dec 12, 2009 | Rockford Fosgate Punch P550.2 2-Channel...

2 Answers

Subwoofer Turns Off when volume is turned up


check your earth from the amp i had same prob and the vibration broke earth connection once secured it was fine

Aug 24, 2009 | Pioneer TS-SWX310 Car Subwoofer

1 Answer

1000 w sony xplode works at low volume then red lights at volume5


Most likely one of your subs are blown, or the Ohm's are too low for the ampliphier. Try hooking up one speaker at a time to the amp and see if it does the same thing. If it shuts off on one of the two speakers, that speaker is most likely blown.

Apr 19, 2009 | Sony Xplod XM-1652Z Car Audio Amplifier

1 Answer

Basicly my speakers were working fine, my subs were working fine but everytime i was turning my volume up to a certain level i would lose all base and all noise from the subs in my boot, so i turned it...


The amp should always light up showing you that it is powered and there will also be a red light that will light up if theres something wrong.Sounds like maybe the hot wire that goes to the amp isnt big enough to give the amp enough power.Check your positive wire and ground wire for tightness and make sure hot wire supply is big enough and also the ground wire is big enough and has a good ground.I hope this Helps you.Have A great day..

Mar 31, 2009 | Pioneer GM-X722 Car Audio Amplifier

1 Answer

Stops working


THEY MIGHT BE DRAWING MORE CURRENT THEN UR ALTERNATOR CAN HANDLE.TRY CONNECTING A CAPACITOR FOR THE SUBS.

Feb 01, 2008 | Bazooka EL1204 Car Subwoofer

1 Answer

Hifonics 1605d stopped working


the red light blinking because your amplifaier its dead look for the alimentation cabel end replace the calibration protector

Apr 16, 2007 | Hifonics BX1500D Car Audio Amplifier

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