500W PA amplifier with Limiter

is this final?
clip led to 4004 pos.,and zy15 positive,
i think not
 

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  • APEX B500 Component overlay incl. LEDs cropped.JPG
    APEX B500 Component overlay incl. LEDs cropped.JPG
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my first b500 experiment.... its nice good sound quality thanks to sir apex....i had encounter trouble when i turn on my b500 1st the the circuit was shorted fuse of the psu burnout i check all the connection and the parts i notice that some parts interchange like the transistor 340 & 350.... affected damage transistor was mje 15033 15032 and resistor 100 ohms... what i did what i did place the 340 350 to the exact place and im using tip41 and tip 42 is okey sir apex its working fine and good quality sound i like it......
thanks alot... regards rompi....