hi Rob
shure. I mean the 3way horn channels, covering above 150hz.
the horns made of MDF layers, glued together, as can be seen on my blog, and then turned on a big wood lathe. Finally, grounded , and painted with PU
Polyurethane, which gives a satin, raw surface.
- the midbass : a round tractrix horn with 96cm outside diameter, covering from 150hz to 700hz, using a 8" high-efficiency , cone driver. SPL will be 109db/1wm.
-the midrange : a round constant directivity horn with 56cm diameter, covering from 700hz to 10khz , usind a 2" compression driver with 111db/wm
- the trebel : a horn tweeter, covering above 10khz, with 110db/wm
all passive crossover, first order.
the channels are full time aligned, that meens all drivers are vertically on axis, with each speaker and driver placed on the same distance to the listener. This way, all frequences arrive to the ear the same time, giving a more coherent , transparent sound.
more about this on my forum :
http://www.audiovoice-acoustics.com/...hread.php?t=89