7-channel amplifier 100 watts per channel into 8 ohms (20-20,000 Hz) at 0.08% THD, with 2 channels driven Dolby® and DTS® surround sound decoding, including Dolby Pro Logic® IIz analog-to-HDMI video upconversion (up to 1080p and 4K) Audyssey Laboratories' MultEQ® XT six-point auto setup and room calibration system (microphone included) Audyssey Dynamic Volume mode to keep listening levels steady Audyssey Dynamic EQ for fuller sound at lower listening levels Digital and Streaming Music Options: Internet-ready for listening to music from a networked PC, free Internet radio, and music services includes support for Spotify, Pandora, and SiriusXM (subscription required for some services) Apple AirPlay for streaming music from an iPhone, iPad, iPod touch® or computer running iTunes DLNA and Windows® 8 compatible for streaming music with compatible devices and computers plays high-resolution digital music files via USB storage device or a networked computer (up to 24-bit/192kHz resolution) front-panel USB input gives you a direct digital connection for your iPod for improved sound quality add Bluetooth streaming capability with the Marantz wireless audio adapter Multi-room Audio: dual-room/dual-source output powered and line-level stereo audio output for 2nd room (using powered 2nd-room output allows 5.2 home theater in main room) power amp assign function lets you use surround back speaker outputs for Front Height, Zone 2, Front B, or bi-amping compatible front speakers optical/coaxial digital and HDMI audio sources are not output to Zone 2 Audio Performance Features: 24-bit/192kHz digital-to-analog converters for all channels Marantz's Hyper Dynamic Amplifier Module (HDAM) offers improved dynamic range and detail while reducing noise current feedback circuit for accurate, natural sound at all volume levels Marantz Dynamic Audio eXpander (M-DAX) improves sound quality of MP3s and other compressed digital music files high-current power transformer Pure Direct mode...