Ken,
I know the PA2X has a phantom power setting in global, but not sure if the 800 does. I'll check it out tomorrow.
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Live: Korg PA4X/EV Everse 8s/Senn 935/K&M stand
Studio: Korg PA4X/Yamaha DGX670/Boss BR900CD/Tascam DP24SD/MTM Iloud/Sony C80/AGK 214/K&M stand