I have a gel cell 12v battery from a 100watt camcorder light, which I could use for such a device...

However, I was going to put the mk1 (if I don't sell it) into a box with my spare 4x60 watt amp (it says 800 on it, but we know better). A set of nutrix speakon connectors for the speakers, a flying 12v lead (with battery terms on) and my big truck battery would take care of the power.. Oh, and my mates Mach PA speakers... =)

I will build it this summer (If I don't sell the mk 1... =)

Jazz
(List 112, Mk2 on order. Mk1 Unit for sale S/N 00030, 4 gig blue, apply within)