I just visited my local GC and they have one on display. They have a guitar plugged in on Ch.2 and a Sennheiser 835 plugged in on Ch. 1; The speaker looked real nice. But the base unit is, to me, too big. I think the rough diameter of the base unit is about 32 to 36 inches. GC has the setup with only one bass module. One person was doing a demo with the setup and he has the Sennheiser mic. spaced about 6 inches away, pointing directly at the cylindrical speaker while strumming away on the guitar. No feedback of any kind! That's about the only impressive thing I see.

Other than that, for $2,000.00, I think I will stick with my dual JBL EON G2 setup.