Wayne Parham Messages: 18870 Registered: January 2001
Illuminati (33rd Degree)
The Econowave was based on my design, and its design principles are the same. What you read in the High-Fidelity Uniform-Directivity whitepaper is what the Econowave borrows from.
Both a 12" and a 15" midwoofer can be used to good effect in a system like this because both are large enough to become directional in the upper midrange. This is a sweet spot, in that larger drivers can't reach high enough and smaller drivers don't become directional enough. But 12" and 15" midwoofers can be used to make a great DI-matched two-way loudspeaker.