Sony XM-2002GTR Car Audio Amplifier Logo

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Emrick Kollar Posted on Mar 05, 2007
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Sony XM-2002GTR 1200 w amp power problem

My friend was recently in an accident and upon buying a new car we hooked up his system. The problem is the power cable and the ground cable are fine, the ground connection terminal on the amp is fine, but the power input terminal does not seem to be working if i kind of shake the cable around it seems to power up then shut off right away, anyone have any idea?

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  • Posted on Aug 09, 2007
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Check for broken solder on terminals

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XM-2002GTW Car Amp: i have 2 dual 2-ohms solobaric speakers and im try...

I researched your amp and it looks like its not even 2 ohm stable :( the problem with these companies is they lable there amps 1200 watts MAX, that means they tested the amp in a perfect enviroment and the amp fried somewhere in the ball park of 1200 watts, your best bet is to save your money and buy a nicer amp that is two or one ohm stable... that being said the best way to wire your subs is in series
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Xm-2002gtr amp keeps kicking protect light on

check your amp and speakers and make sure their both hooked up 4 ohm instead of 2 ohm because if you have 1 set of voice coils on your speakers they can only be hooked up four ohm and not bridged to your amp because if you keep trying this you will lock up your speakers if the speakers are only 4 ohm than just hook them up regular to each channel on your amp if your trying to brigde four ohm speakers to your amp it will keep going into protect or worst case scenario you will fry your speakers and you can check your ohm with a ohmmeter trust me my brother owns a stereo shop
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Amp goes into protect when turned up.

that amp is only stable 2 about 4 omhs mono the powersupply shut dowm drawing t much current it supposed 2 2 fix this u need a 4omh load mono change speaker config so u get 4 omh or buy amp stable down 2 1omh can be expensive
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Amp works but no sound from sub

Some older Pioneer radios require you to connect the Subwoofer RCA to the rear output on the back of the radio and then you have to turn on the subwoofer in the menu on the radio. What model Pioneer radio is it? Also, make sure that the RCA plugged into the amp is on the input side, not the output side.
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Protection light keeps coming on

Check the wiring between the sub and the amplifier. That's seems to be the only thing left that could cause a problem. If it's shorted to ground or pinched so the conductors are shorted together, it could cause the symptoms you listed.
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You cannot parallel two subs AND run them on the Bridge. You must have at LEAST a 4 ohm load on the bridge, and 2 4 ohm subs in parallel equals TWO OHMS. BAD!!! Move each sub to it's own channel or your amp will soon fry.
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Help

was it two screws or two controlls.
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try adding a capacitor to feed the amp. these are large in capacity (farads)and dims (about 6' x3' dia.)...what wire size are you using?
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Sony XM-2002GTR Car Audio Amplifier

I don't think it is a problem. Your amp probably has a power-saving mode being activated at low volume levels. Actually I don't know exactly what your amp is, but this is just a guess, and it could be a plausible one as long as you can get sound without using the amp. If it is so, it must have a function to deactivate the power-saving mode.
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