The Perlisten Audio R7i-LR is based largely on the R7t, 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 Perlisten's 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 representation of midrange and treble. The 165mm woofers are made from Perlisten's proprietary HPF pulp, two years in development, 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 their unique timbre matching technique across the entire series.