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Old 31st March 2010, 12:51 PM   #1
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Default 500W PA amplifier with Limiter

B500 based on schematics of H900, but in AB class.
Power supply +/-90Vmax.
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File Type: jpg APEX B500 SCH.jpg (438.6 KB, 28167 views)
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Old 31st March 2010, 01:46 PM   #2
sekhar is offline sekhar  India
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is this a working circuit ....................... have any pcbs..........


regards
sekhar
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Old 31st March 2010, 04:35 PM   #3
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H750, H900 and B500 is my old amplifier replaced with newer schematics. Why U asked for PCB?
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Old 31st March 2010, 06:41 PM   #4
sekhar is offline sekhar  India
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cause i want to built it if it is alright with u .................

regards
sekhar
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Old 31st March 2010, 06:53 PM   #5
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Quote:
Originally Posted by sekhar View Post
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.
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Old 31st March 2010, 07:12 PM   #6
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dude, you rock spreading your designs for free!
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Old 31st March 2010, 07:23 PM   #7
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Quote:
Originally Posted by powerflux View Post
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

Last edited by apexaudio; 31st March 2010 at 07:40 PM.
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Old 31st March 2010, 07:34 PM   #8
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Default B500 Component Layout

If was no mistakes...
PCB size: 220x52,5mm
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File Type: jpg APEXaudio B500 PCBMON.jpg (379.9 KB, 22260 views)
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Old 31st March 2010, 07:38 PM   #9
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Originally Posted by apexaudio View Post
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
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Old 31st March 2010, 07:48 PM   #10
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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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