Passive 500/1000W subwoofer from Premium PR:O series that delivers a low-ranging bass foundation, boasting an 18” woofer in a bass reflex housing. Its enclosure is made of MDF with acrylic enamel finish and features two integrated handles, metal grille with black acoustic foam, m20 pole mount and two Speakon NL4 connectors. Max. SPL: 129 dB. Frequency range: 38 Hz – fx. Nominal impedance: 4 Ohm. Sensitivity: 104 dB half space. Crossover frequency: 150 Hz, 12 dB/oct. Dimensions: 530 x 610 x 640 mm. Weight: 39.8 kg.