Schizoid Rhomboid consisted solely of Frank Smith, doing analog drum programming and sound processing. What you hear is pure analog; no digital samples were used. A variety of old (1980s) analog drum modules (Simmons, etc.) provided the basic sounds. These were all programmed using a Roland 707 drum machine (gotta love those individual outs!), and processed through various effects, including a Korg analog filter box and a MAM vocoder. Any "bass line" that you hear is an artifact of the tunings of the various drum voices and the effects of the filters on the basic sounds.