Fluid Audio Image 212S; active subwoofer; closed-back design; two opposing 12" drivers; dual-opposed design to minimize cabinet vibration; frequency response: 29–110 Hz (-3 dB); bass response: -10 dB at 26 Hz; max. SPL: 120 dB @1 m; amplifier power: 2 x 500 W RMS, 2 x 1000 W peak; Variable settings for gain, phase, and crossover; analog XLR inputs and outputs; digital AES input and output; additional LFE channel; automatic standby function; dimensions (LxWxH): 350 x 540 x 485 mm; weight: 27.9 kg