Oh, and not ridiculously expensive. I need a portable combo amp to play professional theatre gigs. I have a Realist set up on my Poellman double bass. I'd like to spend less than $700 (So no AI Contra/Coda for me). Used amps aren't a good option since I can't shell out the cash up front (going to do the fun 12 mo. no interest credit card deal probably). I'm leaning towards the GK MB150, but someone mentioned the Roland Cube 100, which is $250 bucks cheaper (and over 10 lbs. heavier). Worth the $250 to stick with GK? Any other options I'm missing?