http://s18.photobucket.com/albums/b1...Dragon%20Foal/

UPDATE/ADDITION, 10-25-09:
Comparison to the 'Zaph B3S' design for those entertaining both of them...

*IN MY OPINION* or from examining graphs;

Dragon Foals:
Pro-
-bass extension to 59 Hz with 'presence' around 120 Hz for 'larger' sound
-3.1 ltr box
-very clean midrange
-semi-flat response
-no xmax bloat at moderate power levels
-83dB sensitivity
-relaxed top octave for less fatigue
-subwoofer optional
-active high-pass filter not required for music

Con-
-hard to build, in way of port installation
-xover must be small
-removable baffles pretty much required without extensive creativity
-6-part xover
-larger inductor
-flush-mounting

Zaph B3N/S with 5dB BSC:
Pro-
-5 part xover
-boosted top-octave for better off-axis response
-semi-flat response
-sealed box easy to build
-surface mounting for S
-3.35 ltr box

Con-
~78dB sensitivity
-extension to 100 Hz
-flush mounting for N
-bloated bass at moderate levels sans active HP
-easily breaches Xmax at moderate levels sans active HP
-subwoofer and active HP mandatory
-passive network must be small
-removable baffles pretty much required without extensive creativity

Just adding my thoughts on these...

EDIT: BOM addition...



Xover and driver:
2x 255-250, Jantzen 1.0mH 18AWG coil
2x 027-924/027-422 + 027-902/027-402; 4.7uF + 0.22uF for closest to 4.85uF, use your preference
2x 016-8.2, Xicon 8.2 ohm 10W resistor
2x 004-30, Dayton audio grade 10W 30 ohm resistor
2x 255-020, Jantzen 0.1mH 20AWG coil
2x 027-926/027-425, use your preference
2x 297-433 HiVi M3N

Optional from PE, but similar is required for design:
2x 260-302 input terminals
2x 260-402 (don't forget some craft-Foamies! Jo-Annes.)
260-516 convoluted foam (A LOT more than required)
260-317 Acoustistuf dacron/polyfil, A LOT more than required (WalMart stuff is cheaper)