Rushton Moreve, Geezer Butler, John Lodge, James Jamerson, Roger Waters (which is actually David Gilmour) and John Paul Jones. Later it was Chris Squire, Mike Rutheford and Geddy Lee. I'm a real Freak!!!
LOOOOVE the PF-500! Great head. I was an SVT die-hard, was never satisfied with any head I bought until I got my PF-500. I would say "Go!!" get your PF-800
They're fixed, but very musical. I also have a Bag End PQ10-BXD that has (4X10 cab) a coaxial comp driver in one of the 10"s...1000W power amp built in...smooth highs. I love the cab but it weighs 90 pounds. Yikes!!
I'm using a PF-500 in the pic...I've also used an old V-4B (before it blew up) and an Aguilar Tone Hammer 500. The PF-500 sounds awesome with these cabs!