I've been reading up with interest about Phil Jones's Briefcase and Double Four, Crate's Limo, Roland BA-330, Carvin Stagemate, Traynor TVM50, and I'm wondering if anyone has come across a bass amp or pa amp unit designed for DC operation that has a higher output than any of these? I'm more interested in high output than focused on portability, or to put it another way, what's the closest thing I could get to the kind of gigging amp I'd want with an AC plug, with the least compromise in sound and power? (For my perspective, I usually gig with 500W Class D thru 4 Tens) I know there are plenty of AC/DC inverter options these days, and there's always the Car Audio amplifier route, but in this thread I'd mostly like to know if there are purpose-built DC-powered options for Bass/PA that I've missed. I've also seen talk of a Crest PFA600, but those are long out of production, and I'm not finding any successors. Thanks for any suggestions!