I've bought a BAM 200 too, to go with a self made 1-12" Kabinet.
It's loud enough in this configuration.
I've seen someone tested the real wattage and said that it was closer to 130/150W than 200W they announce. I've not tried it in rehearsal yet 'cause of confinement (neither gigs of course). But i assume it'll be alright.
If you have 16 Ohms instead of 4, you have to divide this power, i don't know if it's gonna be enough in your case....