80 watts x 5 into 8 ohms (20-20,000 Hz) at 0.08% THD Dolby® TrueHD, DTS-HD™ Master Audio, Dolby® Digital Plus, DTS-HD™ High Resolution Audio, DTS-HD Express, Dolby® Digital EX, DTS-ES™, Pro Logic® IIx, and DTS Neo:6 decoding iPod® integration (requires optional DS-A3 or UP-A1 iPod dock) Audyssey 2EQ auto speaker setup (microphone included) Audyssey Dynamic Volume mode to maintain steady listening levels Audyssey Dynamic EQ™ for fuller surround sound at lower volumes Music Optimizer for improved sound quality with compressed music files dual-room/dual-source audio (powered and line-level stereo audio output for 2nd room; using powered 2nd-room output allows stereo audio in main room) high-current amplifier design 192kHz/24-bit digital-to-analog converters for all channels multibrand remote sleep timer 17-1/8"W x 5-15/16"H x 12-15/16"D warranty: 2 years Our 60-day money-back guarantee Connections: 1080p-compatible HDMI digital video switching (4 in, 1 out) HDMI version 1.3a with support for Deep Color, x.v.Color, lip-sync, DVD-Audio, SACD, and HDMI-CEC with compatible video sources and TVs component video switching: 2 in, 1 out digital inputs: 2 optical, 2 coaxial 4 audio/video inputs, including: 1 front-panel input with composite video 3 rear-panel inputs with composite video 2 audio-only inputs no phono input audio preamp outputs for connecting an external amplifier to power surround back speakers front-panel minijack for connecting a portable audio player 1 set of main speaker output