KEF R11 High end Floorstanding speakers

The Uni-Q driver array, a KEF trademark, is now in its 12th generation, and the version in the R models contains three major new improvements. There’s a new motor system with a shaped and undercut pole, and symmetrical aluminum demodulation rings to significantly reduce inductance in the lower midrange. The midrange cone, surround, and decoupler have also all been refined. KEF has also developed a tweeter-gap damper, to mitigate the negative acoustic effects of the small channel of air between the coaxially mounted midrange cone and tweeter: Soundwaves radiated by the tweeter and transmitted by the air in this gap can excite resonances. KEF claims that their damper fully absorbs these soundwaves.