right ... but you can do a lot more than just repeat, filter, warp, bit-reduction a.s.o we were using a reaktor plugin called FAST FX as master effect that can produce exactly this wired sound - you can do amazing things with those effects.
we used a reversed delay from the TC D-TWO on the TB303 and from one second to another reversed the whole mixdown with this plugin on the master so the everythings else was playing backwards exclusive of the 303, than froze, scliced filtered it and evertghing back, a break (turned the plugin off) and then solo on the TB303 with a dropin of the other mixdown parts going the "normal" direction ... i can tell you, the crowd was going total crazy. Nobodys gets why the sound is so wired, most people just grab their heads an start laughing and screaming
but to have this features as hardware effects is an advantage words cannot tell. absultly amazing ... i've got to get a TI (!!!)