1000W Simple PA Amplifier

+/-90V will give you around 800W at 4ohm.
+/-110V will give you around 1200W at 4ohm. wich is 1.5db. you will hardly notice it.
exept for some extra headroom. but something tell me you don't need that extra headroom 😀
 
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btw, if anyone are interested in small caps, Nichicon 160V CS series seems pretty tough with 3A ripple for a cap size of 18 x 32mm (330uf)

and I have found a 3300uf 100V Epcos, at 15EUR (ø35 x 80mm)

due to space limits, and keeping a low budget, I go for good ripple current rather than large capacity
 
Photoview of APEX BA1200 PSU.
Regards,
 

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