Bohlender Graebner RD75 with Acoustic Elegance Dipole15 Open baffle Project

[architect7]

Having heard the Enigma supertweeter demo at the Dagogo Audio show I think it is safe to say that there is something to the fact that ultra high audio frequencies do somehow add clarity and dimension to what we hear in normal recordings. Once you get cued into it the effect is subtle but definitely in the direction of being more real to life. There is also some research on our "perception" of frequencies out to 100kHz or so, that is not in the spectrum of normal "hearing". I wonder if this explains some of what people like in those Raal ribbons and others that extend way way up.

I think it has to do with the near perfect dispersion of the RAAL's above 15khz regardless of the axis. I have the 140-15D Dipoles and they changed the way I thing about 10khz+.