Denon AVR-2312. Power output per channel (20-20KHz@8 Ohm): 105 W, Audio output channels: 7.1, Power output per channel (1KHz@8 Ohm): 135 W. Multichannel audio input type: RCA. Headphone connectivity: 6.3 mm. Speakers connectivity type: Binding post, Connectivity technology: Wired, Multichannel pre out connectivity: RCA. Audio formats supported: AAC, FLAC, MP3, WAV, WMA, Image formats supported: JPG