The bass driver is a 12", the large spacing is to get the tweeter to ear level, and it is adjustable rotationaly as well as adjustable a couple inches front and back. The wavezorber feet also allow tilt adjustment to tune in the "sweet spot". They are active only right now, crossover at 2000hz 24db/octave seems to be best. I may eventualy design a passive crossover, but not for a while.
The lower enclosures are a laminated stack of MDF CNC cut. Finished in Wenge veneer and solid Paduak corners. With a 4" flared aluminium port, tuned to 50hz, yes they are designed to work with a subwoofer(s). The tweeter enclosure is solid Wenge/Paduak.
A pair are capable of over
[email protected] from 50hz up. Simulated F3 is 60hz.