SUBWOOFER FOR PA (PASSIVE) 'Sub-bass system. Compact multilayer birch acoustic enclosure. Pairs optimally with Linear 5 Series systems. Speaker: 2 x 12. Frequency Response: 49 Hz – X-Over (+/- 3 dB), 39 Hz – X-Over (-10 dB). Power: 700W RMS. SPL Max.: 135 dB @ 10% THD peak. Sensitivity: 104dB 1W/1m. Nominal impedance: 4 ohms. Connections: 2 x Speakon NL4. Attachment points: 1 x M20, 4 x lugs. Metal grill with black acoustic foam. Dimensions WxHxD: 51 x 81 x 61 cm. Weight: 45.6kg. Finish: acrylic enamel, black.'