Turbosound TPX118B, Passive 18"" Sub-Woofer, Rated power: 600 W (permanent), 2,400 W (peak), Maximum sound pressure level: 126 dB (permanent), 132 dB (peak), Frequency range: 45 - 200 Hz (± 3 dB), 35 - 200 Hz (-10 dB), Sensitivity: 98 dB (1 W / 1 m), 2 Speaker Twist (1x Through) inputs, 35 mm Stand flange mount, Housing: 18 mm MDF with black felt cover, Dimensions (H x W x D): 599 x 514 x 556 mm, Weight: 34.8 kg, Suitable optional cover: Art.#486362# (not included)