I guess that depends on how good you are visualizing 3D spaces, and how accurately you can drill. It should be possible to fit the muff circuit, 3 pots, a buffer/splitter/combiner board, and another switch or pot in a 1590A, but you might need to do a custom PCB layout or move to SMD components.
If it were me, I'd be looking at a buffered splitter before the muff circuit, with one output signal going to the muff, and the other going thru a clean boost tailored to match the muff's max output. That output would be controlled by a level pot before being recombined with the muff signal path at the output. You could do it all with a quad opamp and a handful of resistors and caps. But cramming it in a tiny box like that? Not for amateurs
EDIT: for an opamp clean boost, along with the 2-ch splitter and the combiner, you'd need 5 opamps. Bummer.
1 = input buffer
2 = Channel A Send (clean)
3 = Channel A Boost
4 = Channel B Send (muff)
5 = Combiner / Output Buffer
_________________
Muad'zin wrote:
I want Pterodactyl sounds dammit, not a nice little analog sustain.