The GUI looks as dark and raw as the sound of the original.... earthy, breathy, like a fine sandpaper.

I owned a SQ-80 - more wave ROM, poly-AT...
- it's a pity CA didn't base on it instead -_-

The SQ8L by Siegfried Kullmann, is still around:
http://www.buchty.net/ensoniq/#sq8l
Check the web site... lots of Ensoniq ESQ-1,SQ-80 gold there, including history, voice waveROMs, circuit diagrams etc.