The two superb, but costly, HVFR™ tweeters are mounted in a special acoustically optimized high-frequency pod with a precisely calculated angle to maximize stereo coverage and radiation into the room. It is unique to find tweeters of this quality in single point stereo speakers. Two complex crossovers incorporating the highest quality components are utilized to precisely blend the drivers for seamless exquisite sound quality. A specially contoured santoprene anti-resonance/diffraction-control ring is incorporated around the driver and covering the surrounds to further optimize performance. There is also a high-frequency equalization switch to precisely match the SP 652 to any environment.