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I have a 12" MTX Thunder sub is in great shap but wont work. I know the rest of my gear works fine. if i hook up the MTX nothing. If i push in on the cone a bit it will start working agin till i let go. Anyone know what this is or how to fix it. Thanks Shaun

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  • 1,126 Answers

Use a multi meter to check resistance of the voice coil (between "+" and "-" terminals of speaker) Should read slightly lower than Impeadence of speaker. I would wager the voice coil has an open.

Posted on Sep 11, 2009

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I just bought 2 12 inch mtx thunder tc512 to replace my old school mtx blue thunders, everything worked great, but when i hooked up the new 12s i get nothing, zero, zip, nadda, there is nothing wrong


use a d cell battery and touch + of speaker to + of battery and hold it by doin the same with the -'s too if move they work if not there junk

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check to see if one of the RCA cables is unplugged or bad. check the gain check the sub level control on the deck if yours has one.

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first of all you should check the minimal impedance your amp handles , if is class d it should handle between 1-2 ohms total impedance in a mono conection , meaning whatever quantity of subs you have hooked to your amplifier,their total impedance should the minimum the amp handles that way all the power from your amplifier will be used.

Jan 23, 2010 | MTX Thunder 81000D Car Audio Amplifier

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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

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Sub stopped working, unless i push on it?


sounds like maybe the wiring from the cone to the magnet is ripped or broken.... which is why when you push the cone in it works because it pushes it far enough to make the wires touch just barely, but when you let it go the wires seperate and you get no sound.

Your wire is built with slack, so when the cone goes in and out during a song, the wire can move with it and not get broken. but when you cone moves too in or too far out, then that wire can snap or become disconnected.

I have fixed this by soldering the copper wire, but you may lose some power because your copper wire might be a bit shorter(it will probly break again)... or you can lengthen it, but it is not easy to solder... some places will fix it for you but the cost may be more than what it is worth.

This is just a guess, take your speaker outta the box, and look to see if these wires are broken, lose, or frayed.

good luck.

Sep 11, 2009 | Insignia 600W Bridgeable Amplifier with...

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My red light on my amp is on and wont go out


Unfortunately I think you need to get it repaired or replaced .When a protection light will not turn off it is generally caused by an internal short and needs one or more replacement parts for it to come alive again.
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1 Answer

Carlos


i have a 81000d for sale for 250 dollars car money still in perfect condition i am pushing 3 12 inch alpine type r subs

Apr 25, 2008 | MTX Thunder 81000D Car Audio Amplifier

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Mtx 895 trouble


check your fuse up front first. some amps will turn the light on with only the remote wire (the 12 volt signal from the head unit). That may be your issue. If not you need to check your signal input. try hooking the rca's to a diffrent source, i.e. other radio your tv anything with Rca out put. If still you get nothing then pull your subs out and take a regular 9 volt battery and touch the leads to the positive and negative of the sub. Just for a moment though if the subs move when they come in contact with the charge from the battery then my last suggestion would be to take it to a store where you can have an authorized tech check out the equiptment. Good luck

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