Clif,
that's marketing at its best: the XD9 is not going to be a competitor for the SD1 and they will be able to come out with flash cards for the XD9 with all the missing sounds...
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Korg Kronos 61 and PA3X-Pro76, Roland G-70, BK7-m and Integra 7, Casio PX-5S, Fender Stratocaster with Fralin pickups, Fender Stratocaster with Kinman pickups, vintage Gibson SG standard.