People hate SMPS. “Too noisy”, “All that hash will kill the music”. It is time to see if they are right. Show me another supply that can provide over 300mA of current at 800V+ all while having an output impedance of less than 10 ohms!
EDIT: Well, once again I am late to the party. Way back in 2009 Ed Brown of diytube.com had the same idea. He didn’t stack as many, but the concept was proven valid with just six units in series. See more HERE.