100-watt, four-channel amplifier driving a unique quad-voice coil 165mm subwoofer. Active 165mm Subwoofer Built-in 100W RMS amplifier Frequency Response 20Hz - 100Hz Impedance 4 Ohms Active Crossover 70Hz - 100Hz Phase control 0 to 180 degrees Dimensions (H x W x D) 410 x 242 x 312mm |