Denon DRA-700AE. Power output per channel (20-20KHz@8 Ohm): 80 W, Total Harmonic Distortion (THD): 0.05%, Impedance: 8 ?. Headphone connectivity: 6.3 mm. Connectivity technology: Wired. Supported radio bands: DAB,FM,MW, RDS features: EON, AM band range: 522 - 1611 kHz. Width: 434 mm, Depth: 147 mm, Height: 417 mm