Question about Sony XM-2150GSX Car Audio Amplifier

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Subwoofer is not working at all.

I had my 12" subwoofer connceted to the 350 watt mono amplifier working fine, and I turned my amp/car off to get gas. Upon restarting my car and turning the amp back on, the subwoofer is not giving off any sort of sounds. The amplifier's power light is on. I have made sure the wiring for the subwoofer was connected and it was. I have tried everything from rewiring my amp to rewiring my radio just to make sure everything was secure. Any and all help will be very much appreciated.

Posted by swervnmerven on

  • Anonymous May 11, 2010

    hi their/ have u tryd the sub on another stereo to see if its not the sub blowin it kud be ur amp!!! something might of popd of inside ur amp

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Anonymous

  • 655 Answers

SOURCE: amplifier turns on but not the subwoofer?

Hello thedj3214,

You can find the color codes for a 1999 Buick Regal here. There is no dedicated amp remote wire. Neither is there a power antenna wire.

You could use the 12V "switched lead (yellow) from the radio or any switched 12V lead directly from the vehicle fuse box. I'd wire it through a dash mounted toggle switch so as to be able to turn the amp on and off manually.

The Sony 2150GSX is a 2-channel amp with the speaker terminals on either side. You do not want to ground the subwoofer itself, only the ground terminal should be connected to bare metal on the vehicle chassis or body as close to the amp as possible. The ground wire does not need to be run to the negative battery terminal.

A ground on one of the speaker leads will probably cause the amp not to power up. A ground on a speaker wire usually activates the amps protection circuit, causing it to not operate until the fault is corrected.

Hope this helps.

Posted on Jul 29, 2009

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MIKE

  • 49 Answers

SOURCE: Amplifier causes subwoofer to emit super high pitched sound

YOU NEED NO CHACK THE GROUND CABLE SOMETIMES WITH THE SAME POWER THAT THE AMP NEED START TO BURN THE CABLES AND IF THE GAUGE OF THE CABLE IS NOT THE CORRECT CAUSES THAT PROBLEM TRY TO PUT 2 GROUND CABLES (GREY) IN DIFERENT PLACES AND IT MUST WORK!

Posted on Feb 10, 2010

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That amplifier is only stable to 2 ohms.
You will only be able to use one Dual 4 ohm Subwoofer wired in parallel (all + to + on amp.... all - to - on amp.
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It is impossible to wire (2) dual 4 ohm voicecoils to achieve a 2 ohm mono load.

If you're set on using both subwoofers - they will not be getting as much power from your amplifier with a 4 ohm load - but it is your only option.


SEE THIS LINK for the wiring diagram.

Thanks for using FixYa - a FixYa rating is appreciated for answering your FREE question.
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Wiring for this is easy and simply involves matching the connectors for 2 of the channels (Front or Rear) to each of the subwoofers.

#2 Mono Bridged mode.

If the amplifier is lower power but mono bridgable you can bridge two Pairs of channels and power each of the subwoofers this way.

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So you would bridge the front 2 channels into a single bridged mode for one subwoofer. and then you could bridge the read 2 channels into another bridged mono channel for your other sub woofer.

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