@locutus
mhh . . .a milion dollars question :-)
AFAIK the YMF-744 chip, is a good item.
Delfina Flipper, has some problem about its DSP and MP3 playing but anyway, i think that the 2 boards, are quite the same in quality.
I own a Repulse Gold card for my A4000 that is an hi-quality device with SPDIF in-out.
For the onstage use, all is possible but for RT sound effect . . .onestly real effect gear for you guitar bass, should the best choise.
But, as i already said . . .all is possible.
Let we know.
Ciao