Edifier C2XB high performance multimedia speaker has independent amplifier with LED display, AUX audio input for various connection, electronic intelligent distortion control, IR remote control for easy adjustment, ≥85 dBA noise ratio, 55 Hz - 18 KHz frequency range, 450 mV ± 50 mV input sensitivity, 150 mV ± 50 mV SW, 9 watt x 2S watt RMS power output, 250 x 78 x 255 mm amplifier dimensions, 130 x 90 x 180 mm satellite dimensions, 288 x 232 x 242 mm subwoofer dimensions, 7.8 kg weight.