"Eeyore" wrote in
message
Arny Krueger wrote:

"Phil Allison" wrote

** Such a power stage has a rated output of over 500
watts and so HAS to use at least 8 large output devices.

Irrelevant.

Reason being that my amp running off VCC = +/- 80 volts (no-load) is more
like a conservative 250 wpc @8 ohms amp, not 500 watts. I get about 300 wpc
at clipping presuming perfect power supply regulation which of course is
impractical.

The power supply was based on a toroidal power transformer from a commerical
power amp. My test amp used 16 large (MJE 1502x) output devices, which is
obviously *twice* Phil's 8.

Very relevant indeed since each device is working at a
fraction of the total load current.

Agreed, in the general case.