PC power supplies use primary side current limiting, so all the power is available through the 12V rail when there is little load on the 5V and 3.3V rails. The 12V rail will show higher sag than desirable due to the mixed regulation and the light load on the other rails, and the 12V rectifiers (or their associated output choke winding) may blow if the PSU is abused too often, but otherwise it works and can usually provide 20A "repetitive short term" as required by audio amplifiers.
108 Watts to drive 1 KW amp?
It's possible, why? The on owns the 1Kw power amp, will he use it at max power?
In my house, I only use a 6bq5 SE tube amp, with a pair of high eff. speakers, the sound level can reach 9X db. that would be more than I needed.
Also 108 watts current output just the output side, the input side is a reservoir. of cause, in a long run, it is better to use a large supply with sufficient power.
SOMETIMES WE DO TAKE RISK DUE TO -------
It's possible, why? The on owns the 1Kw power amp, will he use it at max power?
In my house, I only use a 6bq5 SE tube amp, with a pair of high eff. speakers, the sound level can reach 9X db. that would be more than I needed.
Also 108 watts current output just the output side, the input side is a reservoir. of cause, in a long run, it is better to use a large supply with sufficient power.
SOMETIMES WE DO TAKE RISK DUE TO -------
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