I had an opportunity to try the BA330 when it first became available to a local music store. The falloff was horrendous, and after checking the specs I discovered that it was just a 5-watt amp, with 30-watts of peak power, but the peak was in a very narrow bandwith. Look at the specifications: DC 12 V: Dry Battery (LR6 (AA) type) x 8 or AC Adaptor, 410 mA. Do the math!
Wattage calculator That's just 4.92-watts.
I'll stick with the Bose L1 Compact(s). And, my setup time is less than 10 minutes, and that's if I'm taking my time. If I'm in a hurry, setup is just 7 minutes at most.
For the larger jobs, up to 250 or more in the audience, I use a pair of Bose L1 Compacts. The sound is incredible and the audiences love it as much as I do.
Cheers,
Gary