The good folks at McIntosh build the MC 2KW amps with nearly the exact same aproach of one chassis for negative, one for positive and one for the power supply. Not 800 lbs or 250k but still impressive in the approach.
Dan D'Agostino Helius dual monoblocks, 1500w @ 8ohms
Rated at 1500W/8 ohm - 20 000 W /1ohm. Heavy league 350 kgs with the price of $250.000. And around 30 of them sold already !!!!!!!!
http://www.monoandstereo.com/2014/09/dan-dagostino-helius-dual-monoblock-new.html
Cheers George
http://www.monoandstereo.com/2014/09/dan-dagostino-helius-dual-monoblock-new.html
Cheers George