Dayton Audio is now offering a 3-way coaxial kit with an open-back midrange. These look interesting.
Orion
In the manual, they suggest two different alignments for the midrange, one where it is left open-back, and one where the rear chamber is filled with acousta-stuf. It would be cool to see the directivity pattern...
Orion
In the manual, they suggest two different alignments for the midrange, one where it is left open-back, and one where the rear chamber is filled with acousta-stuf. It would be cool to see the directivity pattern...