Razz,

I'll hold off commenting on the 600.1 until I can get the boat down to
Exile to get everything tuned.

Yes, running all 3 amps off one batt. I do have an onboard smart charger and charge the batts after every outing so at least I know I am starting out with a
fully charged batt each time. I think i'll be fine as I don't run the stereo very hard for very long when we are floating. We'll see.