I had a personal demo of the PAX-1 and I have to say that it is truly fantastic. The sound engine is MORE advanced than the Triton and has a very easy user interface, including a multi colored touch screen. For the Korg enthusiast, this is the one I would think you'd want. Suggested eta: Late Sept - Oct @ $4500+.
Zuki
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Live: Korg PA4X/EV Everse 8s/Senn 935/K&M stand
Studio: Korg PA4X/Yamaha DGX670/Nord 6D73/Boss BR900CD/Tascam DP24SD/MTM Iloud/Sony C80/AGK 214/ATEM Mini Pro switcher/K&M stand