I've got the BH250 and use it to power a SWR goliath JR, 2x10, but the 8ohm version. Meaning it puts out like 180 watts I think. It gets plenty loud - I'd been using it for practice, but am competing with a loud drummer, two guitarists with Marshall half stacks, and another guitar player with a 50Watt tube amp. No problems being heard, and I think I had the volume cranked to 1 or 2 o'clock. My band has said that they can hear me loud and clear, and actually like the tone from this little amp. I would have no problems using this setup for a small bar/club gig. For larger rooms, I have a 1x15 cab that I'd run in parallel.
"It's a long way to the top if you wanna rock n' roll."
G&L Club Member #515