Has anyone heard the new KEF R-Series?

Since KEF just released the R-Series very little information is available. Specifically interested in the R700 and R900 models. Would be using a Valve Audio Predator to drive them. Thanx in advance.
While I have not heard KEF's in many years, I can say that I am now fully convinced that concentric drivers (really coincident) can be stunning in terms of spacial, phase and timing cues.
I have the new R700's with the R200c center. Awesome sounding speakers and gorgeous in person! I have an Marantz AVR and they sound amazing, shopping for an amplifier now to give them what they deserve. Highly recommend!