Hi Troels, 
We spoke, many, many times. 
Just wanted to let you know that the Faitals are done. 

Special thanx to you, for this really great design!! Biggest compliment I can give is that it doesn't sound like a 3-way. Drivers blend beautifully. 
Takes a long time to break in the drivers (typical to pro drivers and the suspension they use). Sound was really clear in the beginning, missing some warmth, but good things to those who wait. Sound is much fuller and is getting more warmth and body. They have a big wide baffle... but don't sound like they have. They indeed sound spacious and 3d. 
Coming from Amphion argon 7LS, this is an amazing upgrade. 
 
I did a few changes to your design. I made a slotted port, aiming down to the floor, increasing cabinet strength, and also took away the possibility for my son to hide toys ;)
I also used better binding posts, from ETI. Pure copper, gold plated, no nickel. The internal wiring is 2,5mm occ copper from audiophonics in France. I have had some experience in the past with silver coated wire, that wasn't positive. I decoupled the speakers with some silicone 3m discs. 8 per speaker, 4 on top of the stand and for underneath. 
 
I have 2 left hands, which is a Dutch saying for people who can't even put a painting on the wall, so I called in some help. 
 
Special thanks to Joep Slooten, Joep made the cabinets, the veneer job he did is amazing, and matched booked beautifully. He also welded the iron stands, which are also partially filled with sand. I can wholeheartedly recommend Joep to other ambitious 2 left handers in Holland, who want to build something amazing, but don't have the tools or skills. Speakers are made of 18mm birch with bitumen pads. 
 
The filters are soldered and put together by Tony Gee, from Humble home made hifi & TG-acoustics. As always, Tony's handy work is second to none. He measured and checked the filters before mounting. 

Great project!! Great speaker!! the new 12" version... was just released half a year too late, but I can't complain :)