Check the listing for details. Auralex T'fusor Sound Diffusor Panel - White. Color: White, Condition: Open box. Listed at 35.00 USD. T'Fusor 3D Sound Diffusor Panels from Auralex is designed to stabilize frequency response and preserve liveliness of spaces such as control rooms, recording studios, concert halls, home theaters, and houses of worship. Each diffusor is 23.75 x 23.75” and delivers an NRC of 0.20.T’Fusors are optimized to reduce standing waves and flutter echo, without deadening the room. They effectively enlarge the ideal listening position and provide a more accurate listening experience. You can further improve broadband diffusion by filling the back of the T’Fusor with acoustic foam or 1” rigid fiberglass.They easily drop into 2 x 2’ ceiling grids, or can be mounted on walls. The thermoplastic construction is both lightweight and strong. They are finished in white, and can be painted to match desired color schemes.Reduce standing waves and flutter echoPreserve the liveliness of the room rather than deadening itStabilize the frequency response of the roomCombat hot spots and nulls by alleviating flat, reflective room surfaces with scientifically designed surfaces of varying shapes, sizes, and anglesEnlarge the ideal listening position or "sweet spot" in the roomFor use in control rooms, recording studios, isolation booths, rehearsal rooms, drum rooms, concert halls, home theaters, and houses of worshipDrop easily into suspended ceiling grids or mount on wallsLightweight and sturdy thermoplastic constructionWhite paintable finishNoise reduction coefficient: 0.20