Scott... I own a pair of Carvin PM5's and can vouch for Carvin's claims. I also own a JBL G2 10 which is a good main speaker for a small or even medium venue, but IMO, a pair would be over-kill for what you're looking for.

As long as you have realistic expectations of what you'll hear from a 5" speaker (bottom end), I'd bet you'll be happy with the PM5's. They're light weight, clear, crisp, and loud. Give them a no risk try. Carvin is easy to deal with. Good luck.

Glenn