Hello Niemeu; I have the Cabasse Catalane, maybe now that the 4 way huge spheres are out you will sell me your Kara speakers ;-) I am using a REL Stentor subwoofer and it is amazing, I am also using Leak 12 watt Tube Amps, I bought the speakers because I loved the tweeters! The mids cover almost all the female voice register so the highs come out really soft... (the devil to break in, worst that lowthers)
I also project on the white wall behind the speakers! Do try the sub you wont regret it!!!