Folks:
I am intending to purchase a Yamaha MU synth module, and am currently examining the MU100 and MU100R. I had assumed that since one of these is a full rack space, and the other a half-rack, but otherwise both share the same model numbers, the difference would be front-end controls and expansion slots. However, Yamaha's website indicates that the 100R has a lot more voices.

Does anybody have experience with either? Is there much difference in sounds between them? . . . in MIDI processing power? There's certainly a hefty difference in price!

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It's really about music, isn't it?