Right now I am playing through my Ashdown Superfly into an Avatar 2x10 and Avatar 1x12. I was thinking about a bi-amp setup. A friend has a Peavey combo 300 he will sell me. Since that has a built in crossover, I was thinking of using the combo 300 for the lows and the Superfly for the highs with the Avatar 2x10. I like the idea of a 15" inch speaker over a 12" and that the combo is on wheels, making it easier to move at gigs. My question is, does this sound like a good idea? Can I use the DI from the superfly to the board at the same time?