Based largely on the R4s and R4b. Adapted for inwall applications. Shallow 4” mounting depth and integral aluminum extrusion rear enclosure insure consistent performance and minimal sound propogation to adjacent rooms. Sharing “trickle-down” technology from our flagship S-Series, the DPC-Array here based on three 26mm domes, guarantees excellent directivty control and timbre matching with all R-Series speakers. The Silk diaphrams developed ground up, chosen specifically their smooth, effortless representaion of midrange and treble. The 165mm woofer is made from our proprietary HPF pulp, two years in devlopment, bringing new technolgy to one of the oldest materials used in loudspeaker design. All R-Series speakers share the same DPC-Array and benefit from our unique timbre matching technique across the entire series. Another Perlisten inwall loudspeaker to be certified for THX Dominus – their highest rating.