Whom might that bassist be?
Billy Gould. And that was an old post. I now have a preamp that formed the basis of his Peavey MarkIII/MarkIV tones, the two predecessors to that two channel preamp.
One is a preamp in a pedal that duplicated their pre in their Century amp, and the other was the later Centurion preamp.
I find the way to get the closest to the tones I like is still to stack two preamps/overdrives.