Oops,
I just went back over my notes The powersoft had to go back to an old business partner before I did round 2 of my last 2 weeks of torture testing.
The Powersoft K10dsp would max out at 67v drawing an average of 26amps @ 50Hz near input limit
PL380 60v drawing 29 amps consistantly.
Those were the only 2 real sub amps I tested, the rest were a range of 4 OEM new amps of varying topology. PL340, crown 3600, PL3602, and RMX 2402.
Detailed notes about voltage and current draw over time, were taken at Pink 6db crest, 30Hz, 50Hz, 1k, 15k, Dance Music, Dance Music into hard limit.
Power was supplied 100amps in from the wall, into a custom Military Server Farm Surge supressor with current meter, out to amplifiers through a heavy duty 20amp outlet wired to heavy 10 guage cable.
Amps were wired into a heavy resistor bank, and water heater bucket at alternating tests.
The most interesting thing was finding a flaw in the PLX3602 that at 30Hz and 15K channel 2 would behave normally and channel 1 would try and put out 81v!!! Danger Danger! and the amp would go into overdrive and try and pull 33amps from the wall. All in all, I got all the info I needed, and a good refresher course on amp layouts with a little help from Fred Merkle.
My point being, that Powersoft to me was able to do the most, for longer, than any other brand.
New Crown was not invited to the test, as I don't care for it.