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Just hooked up mtx 500d mono amp and 12 inch sub worked for a 1/2 hour then sub quite and led on top of amp just flashes.

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Either ur ohm load is way off ur pos n neg might be touchin or more than likely u blew u sub is it scratchy when u push in the middle of the cone ? does it push in at all?

Posted on May 17, 2010

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Need to know how to wire my system ...I have the infinity reference series 611a I was told it was a mono block but it has two channels on the exterrior...also I have two 12 inch MTX thunder dual voice coil...


it all depends on what kind of box the mtx subs are in as far as wiring the subs. The best way would be take the speaker wire from both sub boxes and run the positive into the right positive then the negative into the left negative. and run 8 gauge wiring kit to the amp because 10 might be to small and 4 is to big 8 gauge is perfect for this amp.

Jul 18, 2010 | Infinity Reference 611a Car Audio...

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How can i bridge a mtx 9500 using a mono amp?


You cant bridge it to the MONO AMP . You can only bridge subs & speakers to 2 CH & 4 CH AMPS that are bridgeable. Because if it appears that there is 2 channels on a Mono amp its so its convenient for you to hook up 2 4ohm subs to it easily But both channels are actually connect internally together in parallel inside the amp unlike a 2 channel they are separate.

So just connect your mtx 9500 to a plus and a minus and doesnt matter which since all the + terminals of are connected together and - are connected together already.

Whats important is on the side of the sub/box it reads 2 ohms. The lower the ohms the more power the Mono amp will put out. Mono amps are designed to handle 2ohm loads.

If it reads 4ohms The MONO amp is the wrong amp to use cause the power will be weaker. So if you have a 1000 Watt Mono amp at 4ohms the sub will only get 500 WATTS Max while a 2 ohm will get the full 1000 Watts.

If it reads 4 ohms connect it to a 2CHANNEL AMP and BRIDGE IT (connect + of the sub to 1st channels positive of the amp then connect - of the sub to 2nd channels negative of the amp) . The power will be doubled when you bridge it on a 2 channel amp. NOW if it was a 2 ohm sub and you bridged it to the 2 channel amp it will fry the subs and ruin the amp. 2 CHANNELS CANT TAKE A 2OHM LOAD BRIDGED OK.

Apr 08, 2010 | MTX (SLH-T7512X2-A) Car Speaker

1 Answer

Just hooked up mtx 500d mono amp and 12 inch sub worked for a 1/2 hour then sub quite and led on top of amp just flashes.


Your amp went in to power protect. You must adjust the settings on amp. This is usually very time consuming to get it right. Good Luck

Mar 24, 2010 | Car Audio & Video

1 Answer

MTX Thunder 81001 wont push subs


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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Picking the right amp.


yes you could go with a 2 channel. You could alwayse bridge it.

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It sounds like you have a defective switch or a broken solder connection. If the amp is new, return it for repair/replacement. Don't break the warranty seal if it has a warranty.

Apr 03, 2008 | Car Audio & Video

1 Answer

Wiring my subs to my amp


bridge it and rear channel if you need to know how to bridge let me know

Feb 07, 2008 | Phoenix Gold Octane-R 15.0:1 Car Audio...

1 Answer

My car AMP will play for a few minutes, then just Turn OFF


Is your sub single voice coil or dual? If it's dual, is it wired in paralel or series? It's possible for an amp the heat up so fast, the outside is not hot to the touch. Also, the next time it happens, use a paperclip and short the 12+ to the remote wire on the amp and see if it comes on. Let me know, and be sure to leave feedback or I don't get paid

Sep 30, 2007 | Car Audio & Video

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