Borresen X3

The only thing that disturbs me about these speakers is in truthupper 30s 

and with these small 5 inch drivers the bass is tunefull but lacks

the impact of even say the 7 inch drivers in the Marten Oscar trio 

with the down firing bass which is not only more impactful but better balanced .

the ribbon is very good they are both in a similar  price range .

The only thing that disturbs me about these speakers is in truth ,the only will go to the upper  30s 

and with these small 5 inch drivers the bass is tuneful, but lacks

the impact of even say the 7 inch drivers in the Marten Oscar trio 

with the down firing bass which is not only more impactful but better balanced .much better bass and midBass impact.

the ribbon is very good though they are both in a similar  price range .

The X3 is a phenomenal speaker way better than the Focal Kanta 2, well worth the $11,000 asking price, there's one speaker I like better though and that's the monitor audio platinum 200 and 300 G2 and G3.

The Cabinet on the X3's is worth 11K. The beautiful music that they produce is just icing on the cake!

I think mtbiker29 makes an important observation at 50.8 x 13.6 x 23.9"   the X3 is a somewhat large and deep cabinet. I don't think I have the room necessary for a rear-ported cabinet that deep which is too bad as I think the X3 has a lot to offer for the price of $11,000. In reasonable comparison, for example, the Perlisten S5t is priced at $13,900 but does have the Beryllium tweeter. The cabinet size is more room-friendly at 44.1 x 9.5 x 15.8”. and can be configured as sealed or ported which is desirable in my opinion.  
I am impressed by both designs. Better yet, the possibility of a good amount of value preowned in the 8-10k range between the two.