This is what I dreamed of for years....a separate output for each of the major parts in the drum kit (bass, snare, cymbals, hi-hat, ALL latin instruments, etc). And then run each line out into a (dedicated) mixer channel. Sure there'd be 20-30 cables coming out, but look at the command you'd have on tweaking each part...tone, volume, reverb....and the best effect of all...."panning"...each part into one of a setup of multiple speakers for a great "wall of sound!"

Of course, there'd be no market for something like this (outside of me) because most players don't tweak ANYTHING on their keyboards...not even "fills."