KRK 10S2, Active Subwoofer, Assembly: 10"" glass aramid fabric woofer, Power: 160 Watts, Class D amplifier, Maximum input level: 117 dB, Frequency range: 28 - 110 Hz, Inputs and outputs: XLR/jack/RCA, Switchable crossover frequency: 60, 70, 80 or 90 Hz, Switch for polarity, input sensitivity, stand-by and ground-lift, Footswitch connection for standby, Dimensions (H x W x D): 382 x 355 x 408 mm, Weight: 15.6 kg