BTW: I just did a dinner party in a room 30x40..I had the Prelude and a single Podium 802....I didn't even turn the Podium on...The 11 watts per side on the Prelude was more than enough volume..I used the M-10dx mixer for mic and effects into the Prelude input...

Logic tells me the easy hook up of the BA330 and just the Prelude..will be ideal..and I bet it will cover the mid size rooms without any problems....I will let you all know next week..