HQ Power Professional DJ mixer 2 channels DSP effects. Line Signal-to-Noise Ratio (SNR): 65 dB, Frequency response: 20 - 26000 Hz. Input impedance: 32 Ом, Microphone input impedance: 2000 Ом. Total Harmonic Distortion (THD): 0.05 %. Power consumption (typical): 0.125 W. Dimensions (WxDxH): 254 x 120 x 341 mm, Weight: 4200 g