What channel should I put the ES on and I am the only musician at church and I do a lot of sequencing with drums/bass guitar and piano. Trying to find out some good presets to use so the sequence would be clear. And help is appreciated.

Mitzi:
I'm not an expert around here by any stretch, but I would think you would run your ES through either channel 3 or 4 where there is NO EQ at all. You will have to work on the mix between the instruments on the ES itself. Then, adjust the volume of the ES using the gain knob on the PS1.

Are you singing as well? Your mic would go into 1 or 2.

Due to the flexibility of the PAS, you probably will get a couple of opinions. Try out what people recommend and see what you like.