I just received my new B112 from Dave at Avatar. Playing through a K & K Bass Max directly (no preamp) into the GK MBE, I'm getting a great tansparent sound out of the B112! As I play pizz on the bass and gradually add volume from the amp/speaker combo, I only hear a louder sound from my bass, not a different sound! I always liked the MBE amp, but was never 100% comfortable with the sound from the combo speaker without a lot of eq tweaking. I also felt I needed a second cabinet for more sound in bigger venues, but didn't want to carry anything with two hands. After shopping the Aguilar 12 cab, Bergantino's 12" cab, and even considering one of Rich Raezer's beautiful cabs, I discovered Dave's web site, gave him a call, and saved myself about $200-350! It seems to work well for my 6 string fretless, too, but my quest was to get my URB to sound like my URB in a room with 200 people. I think I succeeded! Can't wait to try it with my other URB, a mid-sixties Kay. Anybody else have the same results with this cab and/or amp on URB?