HQ Power SAIGOR 300. Audio output channels: 2.0, Total Harmonic Distortion (THD): 0.05 %, Signal-to-Noise Ratio (SNR): 90 dB. Speakers connectivity type: RCA, Headphone connectivity: 6.3 mm. Input frequency: 50 Hz, Input voltage: 230 V. Width: 482 mm, Depth: 314 mm, Height: 88 mm