Wayne Parham Messages: 18786 Registered: January 2001
Illuminati (33rd Degree)
I've been looking at those SEOS horns, and they look like they have promise. Not sure if they'll be able to be a reliable source though. I'd hate to spend all the time required to design, test and optimize a design only to have spotty availability of one of its parts. The H290 does everything I want it to do, so I'm not sure it really makes sense.
To be honest, my suggestion to you is to build three π mains and three π subs. Unless you have good, calibrated measurement equipment and can take the time to optimize the crossover with a myriad of measurements, you probably won't be able to match this combination. But if you do want to take on the task, here are a couple links that might help you along the way.