Emax

I've been thinking about the best way to work in the treatment of samples, create presets and banks form to transfer my Emax II. Currently I'm working on converting the samples again and again across different platforms and file systems. EMXP ... ChickenSys ... XP ... MAC OS X. .. SF2 ... EXS24 ... always with quality loss or errors. Well I feel that the best way to do this is the original, contemporary original equipment Emax II.
Which Mac SDII works better? Power Mac G3? Early models?

THX a lot parts.!