Lee,
I forget you are an electrician, too. I would have looked in hardware and the clips are in electrical, nice.
Speakerman, your points are good. Lee and I have this disease, Loudekemia. We like it loud and I was looking for how much power reserve my Phase Linear had with the new White Oak Audio main board, which has some refinements that the old board did not. The filter caps and the massive transformer produce a 8 Amp surge in the 120 VAC supply but the turn-on thump, which is the momentary DC felt by the amplifier is now very small and insignificant to the 24 individual devices. The voltage regulation going into my amp is provided by a Shape Magnetronics Line Tamer #PCLT 450 and a Rod Elliott DC Blocker circuit box. The only AC circuit in the amp is 6 VAC for the lighting and does not generate any perceptible heat. The AC outlet on the back of the amp is a convenience outlet for the fans. Both fans together draw 20 Watts or 16 milliamps, not enough to really worry about.
The fans may be overkill, but Lee and I are overkill kind of guys. You reminded me that switching on and off does kill these devices, so on the days I listen to this amp (almost every day), I will turn it on and leave it on. I'll check the idle current to see if this will affect my utility bill, on the other hand, I'd rather pay $10 more per month than try and fine some replacement XPL909s.
Mark