O.k.! Got my FHMk3 put together! They are not "finished" but are functional. I put the Mark Audio MAOP 7 drivers in them and they are connected to our Dennis had 6v6 amp and LP3 Pre-amp. The closest thing they sound like that I have heard is an old Luxman P1u Headphone amplifier with the Audeze LCD 2.
I had the drivers since last July and broke them in for over a month on another solid state amp I have.
Everything is just so present and the vocal textures are incredibly rich. Harmonies I've heard many times are just so much easier to distinguish who is singing what, and the clarity makes complicated recordings a joy to listen to while reveling in the rich textures. I'm not sure if what I am describing is attributed to a "flat response" or what, but It's good. Additionally, I was shocked at the imaging, much better than I expected!
I did hook one of them up to an old Cambridge Audio Azur 640A and it didn't sound great. (Speaker definitely revealed the amps shortcomings). The old Paradigm Atom's are definitely a better match with that amp. I may look into building one of the Woden Designs in the future that is supposed to be more forgiving as I have some other paper coned MA 7's looking for a home.
Think I'm going to have a family member who enjoys painting paint some kind of landscape or something to decorate them once I'm done "finishing" them. Have some feet to put on, but I need to flush trim all the edges and maybe round-over the front sides first. I have some grill cloth, so maybe (probably a long time from now) I'll make some custom grills.
I already ordered some Mark Audio MAOP drivers in order to build the FHXL's lol! Really interested to compare them next year, or whenever I get those built.
Dave, I emailed you a request for the FHXL plans. Let me know if I need to send again. I don't think I can send PM's yet due to having so few posts.
Thanks again everyone! Really loving these!