Subwoofer LA1218B Specification MODEL LA-1218B Frequency Response 33Hz~300KHz SUB Driver 18"*1(220 Magnet 100mm) Mid Driver / H F Driver / Rated Power 600W Impedance 8Ω Sensitivity(1w/1m)dB 105dB Maximum Continuous SPL 131dB Maximum Peak SPL 137dB Peaker power 2400W Cabinet Construction 18mm(0.7) Plywood Cabinet Finish Polyurethane Coating Input/Output SPEAKON NL4×2 Cabinet Dimension(mm) W720×H520×L806mm Net Weight(kg) 42Kg