welp I blew up the Ampeg Power section on my combo

I also got my 700RB-II EQ to almost match the Ampeg Pre-amp, after some knob fiddling ... but the Gk has a tighter low end.
the only thing the Ampeg has that I couldn't match with GK was a 100hz bump in the EQ curve ... which I think contributes to the "thuddy mud" of the Ampeg low end , but was a different flavor of thick on the upper 3 strings of my P bass.
Fun experiment .. but things didn't pan out once the volume increased.
700-RB-II still holds the Belt

now if I could just find one of those sealed Neo 810 boxes