I don't have the BB but I have a GK MB200 and MB500. I am one that really doesn't like a sizzly trebly sound out of my bass. I'm old school and like a fat, round tone.Thanks! That was the most helpful summary to date. I get it - I like it!
Maybe the MB's start sounding sharp, but after some tweaking I have mine sounding slightly like an old fashioned SVT style amp with a bit of hariyness using Channel B on the MB500, and cranking the Pre volume. So, I think maybe people could consider that the GK has a wide variety of tones available, if you have the time to invest in learning the EQ patterns.
I know I love my amps, they work excellent for me!


