Re: pro amps:
it all depends on the make and model of amp.
some don't start unless the temp goes high enough;
some have only 1 speed;
some have stepped speeds;
some have continuously variable speeds.
some are louder than others and, by extension,
some are quieter than others... ;-)
My Hafler has a 3 speed fan; always on low speed
unless temps get too high.
the only times the fan was at the highest speed was when i connected 2 electric bulbs on the outputs and fed them with 60 Hz sine waves.
Last edited by J. Bellemare; 05/05/11 09:51 AM.
