MountainSide -

Thanks for looking.
The reviews and demos got me real interested in the SD2 as it seems to be able to do the acoustic sounds better than the SD-50.
The SD-50 seems more like the old Roland JV-1060 and both are excellent for the type of sounds they do best. The SD2 seems to fill in a gap that's missing in those two Rolands.

Mac -

Thanks, good to know.
I plan to use the JV-1060 for melody parts and all the miscellaneous instruments that show up here and there in a song. So the SD2 would only have to handle drums, bass, piano, and guitar.