This fine weave, acoustical fabric is made for audio purists who want the most realistic soundstage when watching movies and concerts. With Harmony, speakers can be mounted directly behind the image, offering the greatest flexibility for placement with minimum attenuation. With a 170 degree wide viewing cone, Harmony performs well in controlled lighting environments as well as with virtually any seating arrangement. The flat spectral response curve of the screen's surface assures that colors and skin tones will be lifelike and accurate. Harmony offers 4K+ visual resolution with excellent white field uniformity at short focal lengths. An opaque, black backing is included to eliminate potential interference due to any light reflection from behind the screen.