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-   -   500W PA amplifier with Limiter (http://www.diyaudio.com/forums/solid-state/164208-500w-pa-amplifier-limiter.html)

apexaudio 31st March 2010 12:51 PM

500W PA amplifier with Limiter
 
1 Attachment(s)
B500 based on schematics of H900, but in AB class.
Power supply +/-90Vmax.

sekhar 31st March 2010 01:46 PM

is this a working circuit ....................... have any pcbs..........


regards
sekhar

apexaudio 31st March 2010 04:35 PM

H750, H900 and B500 is my old amplifier replaced with newer schematics. Why U asked for PCB?
Regards

sekhar 31st March 2010 06:41 PM

cause i want to built it if it is alright with u .................

regards
sekhar

apexaudio 31st March 2010 06:53 PM

Quote:

Originally Posted by sekhar (Post 2138160)
cause i want to built it if it is alright with u .................

regards
sekhar

I use same PCB for H900 and B500, just not stuffed step driver, but is no problem to simplify U with new original PCB for B500. I'll post here about few hours.
Regards

powerflux 31st March 2010 07:12 PM

dude, you rock spreading your designs for free!

apexaudio 31st March 2010 07:23 PM

Quote:

Originally Posted by powerflux (Post 2138192)
dude, you rock spreading your designs for free!

It's my old designs, and isn't better than Crest, QSC, Crown... Just better for DIY, and more easy to DIY.
Regards

apexaudio 31st March 2010 07:34 PM

B500 Component Layout
 
1 Attachment(s)
If was no mistakes...
PCB size: 220x52,5mm

powerflux 31st March 2010 07:38 PM

Quote:

Originally Posted by apexaudio (Post 2138210)
It's my old designs, and isn't better than Crest, QSC, Crown... Just better to DIY, and easy.
Regards

better to DIY is what makes it interesting, and it also makes it easier to understand the crest's :)

apexaudio 31st March 2010 07:48 PM

Quote:

Originally Posted by powerflux (Post 2138222)
better to DIY is what makes it interesting, and it also makes it easier to understand the crest's :)

Then this old designs still are valuable ;)


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