Line array speaker forms a linear sound source by the internal speaker units arrayedvertically in close proximity. It can be used for high-impedance applications with the installation of the optional MT-S0301 Matching transformer. Continuous program: 360 W. Rated Impedance: 8 ?. Frequency Response: 90 Hz - 17 kHz (when recommended parameters are applied by the optional DP-SP3). Sensitivity: 92 dB (1 W, 1 m equivalent, measured at 8 m). Bass-reflex type, white, urethane paint. Front grille: Punched steel plate, white, acrylic paint. Dimensions: 84 (W) × 1177.2 (H) × 157 (D) mm (3.31" × 46.35" × 6.18"). Weight 7.9 kg (17.42 lb).