Question about Sony Xplod XM-554ZR Car Audio Amplifier

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Wen radio is turned up ampp goes into protection

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No diagram but you can printthis out. Choose 1 set of inputs for the subs on the amp (I usually use the low or rear which ever has more settings) You need to put the settings to low hertz and no high settings. Now in the output side you're going to use the positive side of the right side speaker and the negative side of the left side speaker (you can switch left or right as long as they are opposite sides!). Lets start with the negative wire connect it to the negative input on one of the subs, connect the positive wire to the positive input on the OTHER sub, then get an extra wire to connect the inputs not used on both subs. Adjust settings in amp and radio and if it doesn't sound good use negative and positive outputs from one single output (only left or only right) Hope this helps

Posted on Oct 08, 2009

  • CptnMcGuyver Oct 08, 2009

    I'm sorry the posting earlier is not for you. But. . . . you might your wires from the radio to the amp incorrect. Make sure the 12 volt source to amp is straight from battery (the thicker the wire the better) and that the REM from radio to amp is correct (usually white and blue striped wire coming out of radio). Check all your wires going to amp (make sure they are not cut, touching,or loose!) and proper ground for amp is important too.



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That is the way it should be connected. If the protect light comes on you have a different problem than the power connections.

Try to turn it on withour any speakers connected, if it turns on then, you have a bad speaker or you may may the speakers connected inproperly.

If it still goes into protect you have an internal problem with the amplifier.

An internal problem would be something you would need a professional technician to check out. Could be in the power supply circuit, but most of the time it is a blown channel.

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