the t.akustik WDS-7 - 8-piece diffuser set for optimizing room acoustics, stepped shape for optimum efficiency. Used properly, the diffuser optimises the acoustics of a room and brings a professional atmosphere to your studio. The lightweight WDS-7 is easy, cheap and comfortable to install. For your convenience, the WDS-7 can be easily painted using water-based paints (must not contain solvents). Material: EPS (expanded polystyrene). bulk density: 20 kg/qm, Dimensions: 600 x 600 x 70 mm. Colour: White. Order code for glue: 177265