L30D

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Got the amp from aliexpress
It worked great around 17 days, sound was good
but dont know what happened, initially sound used to break in between for less than one second at high volume and later gradually distortion started and it stayed with it, sounding very bad now

what could be the reason IC failure?? please help
 

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Hello!
Does L25D have output power 250w rms?I have 2 boards but can't test them at +-70VDC,,dont have a transformer, but I got one at 40 0 40 which gives +-55VDC and when i tested it with 4 ohms speakers,it sounded like a 50w rms amp

is there any problem with these boards? or is it the trafo?
 
Got the amp from aliexpress
It worked great around 17 days, sound was good
but dont know what happened, initially sound used to break in between for less than one second at high volume and later gradually distortion started and it stayed with it, sounding very bad now

what could be the reason IC failure?? please help

Have you been able to fix your board ? If so what was the problem ?
 
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