Here is an audio comparison I posted in the mpc forums.

Besides sequence 1 and 2 (sampling specs of 2kxl and sp1200) , all these are just random numbers I punched in.
sequence#
1- 44100hz 16 bit
2- 22000hz 12 bit
3- 55100hz 8bit
4- 18800hz 8bit
5- 45600hz 12 bit
6- 49100hz 8bit
then I played each individual drum hit in the same order

http://www.zshare.net/audio/17760591ae42fe81/

definitely an interesting experiment, i personally like the sound of #5

What mechanism did you use to change the sample rates?

yeah def #5 and 1 was alright to -_-

dope experiment juxt! thanks for sharing homie.