Hey Deane - sorry your BK didn't work out. I like trying several boards too!
I was thinking of a BK7m and midi-ing it up to the PA900 live. Don't know how easy it would be to switch back and forth while using the 900 as a controller. Have you tried this route? No one on the synth forum is responding to my message. It would be an easy haul around this way with plenty of variety. (I'm planning on making my own arrangements, using the MOXF6 I have - at home).
Thx for your thoughts.
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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