Question about Sony XM-2002GTR Car Audio Amplifier
Very likely the amp is overloaded and goes into protective thermal shutdown. Letting it cool off for a little while would allow it to reset. could be it's not capable of sustained power level you like. Next most likely reason is miswiring speakers - if you have more than one and they are in parallel (the usual case, with all the red+ terminals wired together and all of the black- terminals wired together), check to see that their total impedance is no less than the minimum specified in the amp's manual. The total impedance is Z=1/(1/Z1)+(1/Z2)+(1/Z3)... where Z1 is the impedance of the first speaker, Z2 the second, etc. For example, two 4 ohm speakers in parallel = 2 ohms.
Posted on Jun 26, 2009
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Posted on Jan 02, 2017
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