Type: Compact vented sub passive system Woofer: 18〝(460mm) woofer; 8 0hm Frequency response: 40 HZ-150 Hz±3db Rated power: 500W RMS Max Power: 1000W RMS Crossover Passivo: 120 HZ Sensitivity: 99 dB (1m/1w) Max peak SPL: 124 dB Max. Long Term SPL:130 dB Enclosure: Multi-laminate birch ply construction Finish: Textured black paint Protective Grill: Grey still grille Connector: 2*SPEAKON (IN-LINK) Dimensions: (H)690mm*(W)*561mm*(D)595mm Weight:45 kg