i own the ba210 and imo, it will do just fine in a doom metal band. Played a venue last and didn't have the volume past 3. That's with a loud drummer. I know for a fact it'll be loud enough especially if you can run xlr to the pa!
I've read complaints about the ba210 making noises when I was in the market. Took the chance and ordered it and I haven't had any issues. I've had it over a year now!