Cooked my Sure TDA7492 50wpc?

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Hey All, I have been using this amp in an old GE Boombox and all has been good. I run it off the stock PSU 16.2 volts and a few amps at best but it is enough.

I used the headphone jack output and that work very well with the amp on the lowest sensitivity. To clean the project up I was working on a L-pad off the speakers inside to get rid of the cord. I built the l-pad, tested it and it is just fine.

Somehow I fired it up and the switch on the l-pad was bypassed so the amp got speaker level white noise for just a second then the amp dies and stays dead. LED turns on and the fan runs, nothing looks or smells burnt... Are these amps just that touchy about input level?

Thoughts?
 
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