Bill, I have the same problem at an Italian restaurant I work. What woerks for me is to put one cabinet on the floor, where the horn dosen't hit the people at the closest tables in the face. The other one, I bounce off the wall, aimed toward the dining room.

Sometimes, I use wedge monitors aimed towards the ceiling. Just this week, I'm going to run a couple of 10's to the dining room (there are shelves about 10 feet high). I'll line out and power the 10's with a little 4 lb Crate 150 watt guitar head I just got ($99.00-Musician's Friend).

You'll figure it out!

Good luck!

Russ