Well, the two Pi's are a different application, but I could use the drivers for a little experimenting. The push/pull bass reflex alpha 10 idea sounds very interesting. Could you put a tweeter on it and have a "super two pi tower"?
Good corners are hard to come by in my house. For subwoofer purposes could I face the drivers toward the wall (to hide the "backwards" driver)?
regards,
Walter Owens