Visaton AMP 2.2 LN. Audio output channels: 2.0, Total Harmonic Distortion (THD): 10 %, Signal-to-Noise Ratio (SNR): 81 dB. Headphone connectivity: 3.5 mm. Connectivity technology: Wired. Weight: 178 g. Operating temperature range (T-T): -10 - 50 °C