I have a GK Microbass head, runs 4 or 8 ohm. Satisfied with the sound and the head, but not happy lugging around Neo 112 speaker although its a great speaker too. From what I have read here and on Bob Gollihur's site, am seriously considering a Wizzy. Just not convinced the 10 could handle it for jazz quartet DB gigs, but maybe it can. Is anyone else here making these kinds of decisions, and/or experience with comparing the Wizzies?