1000W Simple PA Amplifier

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tinitus

Ex-Moderator R.I.P.
Joined 2005
heatsinks on
still thinking I could make it a smaller 2-channel amp instead of a monster mono
 

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44250

44250

Member
Joined 2011
forum.yu3ma.net
AudioSan said:
ehm. more like this.
and why do the +/-110 Version only have 15.000uF pr rail. and the +/-96V Version got 30.000uF pr rail?
Click to expand...

schematics principal is what is important,but you can take that as a minimum ratings. you and anyone else will anyway put in the psu what you want or what you have. i can't believe that so many of you people wish to let all the others that you have discovered warm water by claiming that psu capacitors should have larger rated voltage and capacity,like no other knows more is better and that size matters? calculate output amplifier current and multiply by 3000,that should be more than enough even for hi-class power amplifiers working in ab class,so hope it wold be enough for any PA builder's concuisnes.
 
T

tinitus

Ex-Moderator R.I.P.
Joined 2005
AudioSan said:
why do the +/-110 Version only have 15.000uF pr rail. and the +/-96V Version got 30.000uF pr rail?
Click to expand...

look at whats available, spec sheets and prices :eek: and you will know why

even those values may be .... :eek:

well, Kemet and Epcos 100V, 22000-47000uf seems 'affordable'....and big

for higher voltage you could use multiple smaller caps like 160V, 2200-4700uf

Im going from my own 'local supplier'
your supplier may have more options
 
A

AudioSan

Member
Joined 2009
tinitus said:
look at whats available, spec sheets and prices :eek: and you will know why

even those values may be .... :eek:

well, Kemet and Epcos 100V, 22000-47000uf seems 'affordable'....and big

for higher voltage you could use multiple smaller caps like 160V, 2200-4700uf

Im going from my own 'local supplier'
your supplier may have more options
Click to expand...

i would use few 160V can type caps. say f.ex 33.000uF. they have a lot more max ripple current then multiple smal snap-in caps. therby also lower ESR.
 
apexaudio

apexaudio

Member
Joined 2010
AudioSan said:
i would use few 160V can type caps. say f.ex 33.000uF. they have a lot more max ripple current then multiple smal snap-in caps. therby also lower ESR.
Click to expand...

Of course it is better to use a 160v capacitors, but for many members they are inaccessible and expensive. I offered an alternative to the commonly used values ​​10000uF/63V. Me personally the most suitable option to 10000uF/100V.
 
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