I have here an LDS 15/6 built nearly to fEarful specs - he used an early fEarful diagram and made a couple minor deviations (midrange cup instead of box, but additional bracing).
The tuning may be a tad on the low side - I'm guessing 42hz from my measurements.
Specs:
Kappalite 3015LF
18sound 6nd410
Greenboy CBG crossover from Leland @ SpeakerHardware, installed by me
Midrange polarity corrected per recent design notes
Passive attenuator disconnected.
Two spring loaded handles
Material: Poplar 5/8" ply as near as I can tell
Size: 16 1/2" deep, 20.5" wide, around 31" tall (all measurements are "ish" - the coating adds a little and the corners/feet stick out, etc.)
Coating: Polyurea rhino type coating
Weight: 48-52lbs
notes:
--Pickup only in Phoenix AZ for now unless you want it packed and shipped at your expense from a UPS or Fedex store. This would be 100+ dollars.
--There are some spots where I filled holes on the baffle--hard to see but it's not cosmetically perfect
--There will be scratches on this cabinet. I have gigged it extensively (probably close to 50 shows). The cabinet is in perfectly working order.
Pics--more on request or check it out in person
Trades considered 8 ohms Price: 550