18'' subwoofers, PA Woofer Car Subwoofer,PA Subwoofer, Loudwoofer Model No. ST2-PA18-220 good sound low price good quolity 18'' subwoofers, PA woofer, PA ... Subwoofer, Loudspeaker, Model No. ST2-PA18-220 this product ... power: 1200WattsRms power: 600WattsFrequency response: 35HZ-3KHZSensitivity: 98dB/W/M 18" subWoofers