Features and applications:By adopting high?power drivers?and precise?design coordinated with integrated?formation line?array?bugle, the?speakers feature high sensitivity, high?mobility, and high SPL. Thanks to the safe transporting facilities and quick installment and dismantle system, they are ideal for using in stadiums, stages, multi-function halls, auditorium, and other flow performance sites ?where?high quality sound system?were?desired.*1x18"Ultra-LF driver*Simple suspension?devices*Quick?suspension?and mounting*Ergonomic knob*Waterproof and bump proof?corundum?coating*Multi-layer birch ply*Enhanced steel grill,?acoustic ventilation filter screen*Suitable for?using in stadium, stage, multi-function hall, auditoria hall, and other movable performance venuesSpecifications：Frequency Range (+/-3 dB):40Hz - 300HzSensitivity:?LF 99dBMaximum Peak SPL: LF 129dBDriver：LF1x 18"Nominal Impedance:?LF 8ΩPower Handling:??LF1x 600WConnection:2x Speakon NL4Product dimensions:(WxDxH)?752X600X520MMN.W:?46KG