A while back I noticed my MPC sounded nowhere near the SP1200 even with sound compression. I came across a Casio SK-1 at a garage sale for $3, and tried some samples through it with nice results. While the 8-bit is not nearly as clean as the SP, it did give some of that aliasing effect that I like. The sample is BTO's "Blue Collar".
damn dude that's very resourceful to achieve an 8 bit sound thru that Casio
dope loop too!