Ralph (Atmasphere), thanks for your comments also. As a point of information, all of the peak current specs Spectral provides at their site for the recent models as well as for the DMA-180 are described as "peak **output** current" [emphasis added]. So I would have to assume that **if** their wording is accurate those specs are based on the short we have referred to being applied to the output of the amplifier, rather than to the output of the power supply. The numbers, btw, are 60 amps in each of those cases, except for the DMA-400 monoblock which is 90 amps.
Giving it the benefit of the doubt (using the power formula), 90 amps squared is 8100 watts into one ohm (into 2 ohms it would be 16,200 watts...). Looking at the specs we see that the 2 ohm power is no-where near that. So the current cannot be anything to do with the output section! It is how much current occurs when the power supply is subjected to a dead short for 10 milliseconds. It is a measure of the power supply capacity and really not anything else.
By the same measure our MA-2 amplifier, which is an OTL, makes about 60 amps.
