QSC K Sub Bandpass Subwoofer - 1000W class D amplifier, 2x 12" woofers with a 4" voice coil, 105º conical dispersion, XLR and jack combi sockets with volume controls on each channel, frequency response: 44Hz-100Hz, 131dB maximum SPL, M20 speaker stand fitting, 3x M10 flying points. Dimensions: 665 x 365 x 714mm (including wheels). Weight: 33.6kg, Distance Pole 35 mm Dia with M20 Flange Supplied