SRX818S Single 18" For Concert Touring

JBL SRX818S Single 18" For Concert Touring : System Type: Passive 18", subwoofer system Maximum SPL Output: 135 dB, Frequency Range (-10 dB): 28Hz - 150Hz, Frequency Response (-3 dB): 45Hz - 150Hz, System Power Rating: 2400W Peak, 1200W Program, 600W Continuous, Nominal Impedance: 8 ohm, Connectors: NL4 Input, NL4 Loop-thru (+/-1 or +/-2 Selectable), Operational Modes:Passive, Speaker LF Driver: 2279H, Crossover Frequency: 80hz, Material: 18mm plywood Suspension/Mounting: M20 Threaded Pole Mount, Handles: 4, Finish: Obsidian Duraflex finish, Grille: Powder coated, Onsidian, 14-gauge perforated steel with acoustically transparent black cloth backing, Dimensions (L x W x H): 26.89" x 26.92" x 22.62" (683mm x 684mm x 575mm), Weight: 78.0 lbs (35.4 kg).