P.S.: the sample loading time of the PA2-X Pro is rather fast (much more than the Tyros 2).

Here are the data from Korg Germany:

Loading 128MB WITH PCM AUTOLOAD lasts 400sec (6:40)

loading 128MB separately (after booting) lasts 280 sec (4:40)

(link here
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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.