Kali Audio WS-12; active 12'' subwoofer; crossover with 6 crossover frequencies; limiter protection circuit; bypass via foot switch; Class D amplifier; Power: 1000W Peak / 500W Continous; Frequency response: 23Hz - 160 Hz (-10dB); Frequency range: 30 Hz - 160 Hz (+/- 3dB); Max. Max. sound pressure level: 123 dB SPL; Inputs: XLR, 6.3mm jack (balanced) and Cinch; Input sensitivity XLR/6.3 mm jack: 106 dB SPL @1m +4 dBu; Input sensitivity Cinch: 106 dB SPL @1m -10 dBV; Dimensions: 483 x 432 x 407 mm; Weight: 29 kg