I hasd the Korg PA2x for 4 mos and ended up with a Tyros 3.

Korg was a better Workstation insofar as MIDI goes, Korg had a better Harmonizer, Korg had a more "raw" overall sound. Korg had 76 keys,
Korg is a great board for LIVE play and MIDI/DAW use.I was hoping to have an all in one Workstation/Arranger.But the available style library was pale in comparison to the Yamaha's

Since I don't use the board for live work (where it truly shines) and in the end I preferred the vast style library the Yamaha offered which is why I bought an Arranger in the first place. Styles. Not being a guitarist I felt the Yamaha had far better guitar voices and acoustic instrumentation overall at the expense of drums and synthy stuff. So I bought a Tyros and recently the XS8 to fill the Workstation keybed hole the the Korg left.

[This message has been edited by Kingfrog (edited 03-23-2009).]
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Yamaha Tyros 4
Yamaha Motif XS8
Roland RD700
Casio PX-330
Martin DC Aura
Breedlove ATlas Solo
Bose MOD II PA