The speakers playing in this video are actually Borresens new X6 model. I believe they are $20K EURO or US$22K. They use Borresens famous planar ribbon tweeter, which is used across the various product ranges.
I heard the smaller version of those speakers (I believe those are the X series) at AXPONA - they are not at all too airy. Very visceral, in fact. Some of my favorite bass at the show.
The M3 was revealed at AXPONA, I think you didn't cover it but one of your companions ran across it (but perhaps didn't realize it was the new model.) At this show Børreson unveiled the M6 but when they announced it is $550k all I could think is why didn't they price it above the Magico M9 (given that Børreson is clearly competing against Magico in model numbers as well as market.)
These companies will literally pull prices out of their butts just to show they can make expensive speakers regardless of their actual cost to manufacture.
