PA speaker for a bass cab.

I'm down here in Florida playing with the Heavy pets. Couldn't get GK to hook me up, so I went to the local Guitar Center looking for a cab to go with my Acoustic Image power amp. Everything was over priced and wimpy. So I just wandered around and then I saw some PA speakers. Well I hooked up my AI amp to this Yamaha speaker, and it was totally amazing. Five hundred bucks for all that sound. Is anybody else doing this? Why or why not wouldn't somebody do this? I've had nothing but bad luck with cabs. I love to know what people are thinking. Peace!!!

Mark White
Spin Doctors
Heavy Pets