Tekton Double Impacts


Anybody out there heard these??

I have dedicated audio room 14.5x20.5x9 ft.  Currently have Marantz Reference CD/Intergrated paired to Magnepan 1.7's with REL T-7 subs.  For the vast majority of music I love this system.  The only nit pick is that it is lacking/limited in covering say below 35 hz or so.  For the first time actually buzzed the panel with an organ sacd. Bummer.  Thought of upgrading subs to rythmicks but then I will need to high pass the 1.7's.  Really don't want to deal with that approach.

Enter the Double Impacts.  Many interesting things here.  Would certainly have a different set of strengths here.  Dynamics, claimed bottom octave coverage in one package, suspect a good match to current electronics.

I've read all the threads here so we do not need to rehash that.  Just wondering if others out there have FIRST HAND experience with these or other Tekton speakers

Thanks.
corelli
@grannyring 
I would have second thoughts about posting as well but the fact is these are great speakers AND there are anomalies that WE, the consumer, are trying to understand. In addition, and this is kind of big, these speakers are being recommended by Agon members as something special and yet we seem to have different versions of the seemingly same product and I find that disconcerting. I guess it is then fair to compare notes to see how the XO's, as well as wiring diagrams, differ from speaker to speaker. 

I suppose the builder has every right to do what he wants and to not share. It is certainly reasonable not to. It is his speaker and his design. I am OK with that actually. Not sure I would want to give up my secret sauce.

However, my post is to bring to light the fact that not all our DIs sound identical . They don’t. We need to keep that in mind when reading comments. Perhaps the design has now settled down and all sets are pretty much the same. I personally think these sorts of changes should have been sorted out prior to introduction. “Fine” tuning slightly after intro is fine and common.
The basic $3000 DI is 4 ohms. What are the downsides of a 4 ohm speaker?
To purchase an 8 ohm DI is an additional ~$450. Why so much more?
Why so many variations of the DI? Kind of makes resale very tricky. Not being able to hear the DI's live puts resale (or return)  squarely on the table.
How does the DI compare to the Klipsch RF7 II or the B&W 683?
Is there any legitimate competition in this price range?
I am trying to read quickly through the 70+ pages of responses so bear with me if these questions are in any way redundant.
@grannyring I jus spoke with a friend of mine who has worked on Bozac speakers for years and Bozac has a tweeter array as well. He said Bozac changed the inductors and capacitors as well as wiring sequence for years so I guess it is a common thing!
For years, over years yes. But this much change in the initial intro months? Oh my. The builder has a passion to improve and refine so if substantial monthly changes are common without MK status changes, then we know it and refer to our DIs with birthday dates😊