Quote:
(I'd like to know what a "minimum setup" might be...)


well, "minimum" is a function of what you want to accomplish. In John's case he wants full control of all tracks. Plus he uses Power track to send light-controlling commands and also an audio stream to his vocal processor (which provides intelligent harmony)... so this is very nearly the minimum gear that will meet his requirements.

For someone who just wants to mix down their songs to MP3s to use as backing tracks at a gig, the minimum (IMO) would be an MP3 player and some kind of amp or PA system to play it through. Plus a mic if you hope to sing along.