Just pondering ... on the one hand, it could make for really easy setup at the gig: connect one power cord, the speaker cable, and the instrument cable; everything else is already connected. OTOH, I'd have to squat down to change any levels oon the amp, and it's exposed to possible beer spills, etc. Anyone ever try it?
I don't , and I don't see how it's any easier of a setup; maybe easier load-in/load-out. I've seen it discussed here, though, and I remember a pic from an old for sale thread in the classifieds: http://www.talkbass.com/forum/f213/fs-feeler-pedal-board-setup-934305/
The real downside of that is having to use a much heavier and longer speaker cable that can get pretty expensive for enough quality to avoid signal loss.