SUBWOOFER FOR PA (PASSIVE) Subwoofer system. Compact multi-ply birch acoustic enclosure. It is optimally combined with Linear 5 series systems and the L Sub 2000 subwoofer. Speaker: 1 x 18''. Frequency response: 39 Hz – X-Over (+/- 3 dB), 31 Hz – X-Over (-10 dB). Power: 1200W RMS. Max. SPL: 137 dB @ 10% peak THD. Sensitivity: 106 dB 1W/1m. Nominal impedance: 4 ohm. Connections: 2 x Speakon NL4, pin assignment switchable between 1+/1- and 2+/2-. Clamping points: 2 x M20, 8 x handles. Metal grille with black acoustic foam. Dimensions WxHxD: 91 x 51 x 81 cm. Weight: 57.1kg. Finish: acrylic enamel, black.