LD Systems ICOA SUB 18 A, Active 18"" Bass Reflex PA Subwoofer, 18"" subwoofer for a powerful low end up to 29 Hz, Power: 600 W RMS / 2400 W peak, Max. SPL (sound pressure level): 133 dB, Frequency response (-10 dB): 29 Hz (depending on the preset), Digital Class D amplifier, Optimised bass reflex ports, DynX DSP with 4 application presets (3 crossover frequencies, cardioid mode), Switchable signal polarity and adjustable delay line for up to 10 metres, 2 Combo inputs: Jack/XLR, 2 XLR outputs, Robust housing made from 18 mm plywood with a heavy-duty front grille, Easy handling thanks to 4 ergonomic aluminium handles with rubber surfaces, M20 thread for mounting a distance rod, Dimensions (W x H x D): 626 x 672 x 637 mm, Weight: 44.3 kg, Colour: Black, Suitable cover available under Article Nr #504981# (not included)