Question about Pioneer GM-X962 Car Audio Amplifier

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Wiring my subs to my alpine mrv-1000

I want to wire 2 infinity reference series subs to my alpine mrv 1000 amp. i want to connect them to bridge them to get them to hit much harder. but when i do this the amp shuts off and over heats? i have 5 gauge power wire. 5 gauge ground wire about a foot and half long. what can i do to fix this?

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  • haedyn schaumkell
    haedyn schaumkell Feb 19, 2014

    you may have your gain turned up to much i had this problem i rectified the problem by turning the gain down 0.5v and found that the amp wasnt turning off to get the most out of your amp google the specs up and youll be right mate



2 Answers

It is simple. The MRV1000 can be bridged but only to a 4 ohm load. I am assuming your subs are 4 ohms and run fine stereo, but if you bridge them it will show a 2 ohm load bridged to the amp which means 1 ohm per side. The amp is not stable at the impedance. Get 2 ohm/8 ohm subs or "Dual 4 ohm voice coil" Subs and it will crank fine. 

Posted on Apr 10, 2008

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Did you read your instruction manual. does it says "it could be bridged to other amp"?. you can't make a bridge to amplifier that is not bridgeable. bridging an amp is a way which it is made through transistor type ampilfier by bridging more transistor inside and more voltage is required for bridging.
I don't know if we could do to an IC type amplifier. ask an experts about bridging IC types how to bridge maybe they know how.
and if you had an successful bridging, you may have a problem through your speakers, they may hit hard but you will experience some errors through your speakers and easy to worn.

Posted on Jan 26, 2008


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Hi there,
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Battery Lead (Sold Separately)
Be sure to add a 80 amp fuse as close as possible
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Power Output: RMS Continuous Power (at 12.0V, 20 Hz to 20
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You can find a manual for this amp here:

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That amplifier is not 2 ohm mono stable in bridged mode (assuming subs are SVC 4ohm).
It is seeing too much resistance and overheating. Thermal overload protection kicking in.

The phase switch allows you to switch from in phase to 180* out of phase. This feature is not to taken as written in stone. In some rooms, or locations of a room, the output will sound louder/better either in phase or out of phase. So there is no correct setting. It all depends where the sub is located and the acoustics or shape of the room.

Phase is term that describes multiple characteriscs and behavior of a speaker system.

Phase alignment: The vertical alignment of the voice coils of all the speakers in a speaker cabinet, so that all signals reach the sweet spot at the same time.

Crossover phasing: If one or more crossover slopes are of a different slope, then the speakers would not fire at the same time, causing delays in response.

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