Bump w/ pics of my power distro box ->
16 - 24V input (wired to run the battery at 20V) Provides 4 4pin XLR's, all with pins 1 and 2 at 0V, pin 3 at 6.5v, and pin 4 at 12v (using 95-97% effecient DC-DC converters - max of 2A per rail)
I also have a PowerPad 135 which is much smaller (135Wh) and works with same setup.