Soul Supreme, like all Zu products, is built around the critical human voice (A1, 55Hz, through A6 and all the possible harmonics, to approximately 10kHz). Serving this critical region of tone is Zu’s 5th generation high-output 10” paper-cored nanotech sanctified full-range driver perfectly matched with the Radian 850 based tweeter with it’s nearly 20 pounds of mass also serving as a stressed-member of the cabinet to further remove cabinet talk and electromechanical feedback. This is the same driver we developed for and use on our flagship loudspeaker Dominance and are also using in our other top performing speaker.
Features of this new driver include a maximal motor for expanded dynamic contrast and reduced harmonic distortion, lightweight neutrally-hung voice coil assembly with a paper/Kapton former, linear inline layup of the inner cone for best resolution of detail, diamagnetic shorting assembly for dynamic damping of the moving mass when playing at concert levels, nanotech-impregnated paper cones designed to support wide bandwidth and a machined phase cone with concentric maximal-length sequence diffusion for smooth high frequencies. All this is anchored to a heavy aluminum alloy frame with overbuilt bonded and riveted yoke/magnet/top-plate assembly.
The nano materials and application process reduce weight while increasing strength and propagation velocity without incurring any sacrifices in damping. We lay-up the paper pulp as a core material and essentially infuse a liquid solid matrix on it’s skin. We use nano-processed and nano-engineered materials and key components in the matrix include nanosphere ceramic balloons, nanofiber cristobalite and amorphous fumed silica. Adhesives and binders include melamine, epoxy and nitrocellulose (aircraft dope). First process on the paper core is a matrix of epoxy, nanofiber cristobalite and fumed silica. On this you have a stratum of nitrocellulose and nanospheres. Moving past the lighter, stronger, higher velocity cone you have the Eminence made voice-coil assembly with is combination of paper, Kapton, copper windings and proprietary Eminence adhesives. The center “phase” plug is a carry-over from the research and testing we did with Essence, and gives this driver a more linear management of high frequencies and broader dispersion from the directly-coupled-to-voicecoil inner cone. And as dynamic contrast and to-the-max shove and pop are of primary importance we combine the Soul Supreme with the best tweeter possible, the mentioned Radian 850 based tweeter driver.