"Arny Krueger"


I've done a number of experiments powering power amps via power supplies
that have current limiting. As long as a reasonable energy storage
reservoir is available, amplifying music does not require a great deal of
average current.


** Correct.

The important thing is to HAVE a large electro cap at the output of the
regulator - so the series pass device will not "see" the current peaks being
drawn by the amplifier.

In the OP's example of a 30 watt @ 8 ohms amplifier with +/- 25 volt DC
rails - even full sine wave power requires under 1 amp of DC current per
rail while normal music programme with peaks to full power will require no
more than 1/3 of that.



..... Phil