I have been busy listening to them for the past few weeks. I made the mistake of putting the drivers in the enclosure before completely finishing the exterior of them. So as of today, they are still raw mdf.
Just a note for anyone who is going to build them. When using the 3 studs on the compression driver for mounting, the horn has to be trimmed before the bolts will fit onto the studs. It was a very easy process with a razor blade.
I have only tried them with the shorter ports (yellow curve on my 1st post of this thread) so they are not tuned very low. I am looking forward to trying them with the longer ports, just need to find the time to swap them. I have not measured them to see if the simulations match the design.
As for listening impressions (have only demoed them with music and with a Crown CE4000 for amplification) :
- they are very efficient and dynamic
- they can play extremely loud while staying composed (will fill a large theater without any problems)
- the midbass is punchy when turned up
- they have a very in-your-face sound to them (I am guessing this is due to the horn)
- they are extremely directional on the vertical axis (definitely need to be aimed towards the listener)
- the image of the soundstage is excellent (constant directivity plays a big role here)