There are a few (not many) old threads on these cabs, mostly along the lines of "When are they coming out?" - particularly the 1516. I know they're available now, and was expecting more buzz - especially after the release of the long awaited miniMEGA head. All I've gleaned from specs and reviews is that they are not exactly light weight. I would overlook that point if they had killer sound and power handling. I'm currently using a GK rig: MB500 and two CX210 cabs. It works okay, but I kind of feel it's close to being pushed to its limit. I think the cabinets are the weak link. So, considering a new rig (maybe a new Peavey setup) and having the GK for rehearsal and a backup. Anyone?