The Yamaha RX-V563 is a 7.1-channel home theater receiver released around 2008, notable for offering HDMI switching and automatic room calibration (YPAO) at its price point. It is a solid unit for building a surround sound system based on the older Dolby/DTS formats. Key Specifications | Channels | 7.1 Surround Sound | | Power Output (RMS) | 90 W per channel (7 channels driven, 8 Ohms, 1 kHz, 0.9% THD) | | Audio Decoders | Dolby Digital EX, DTS-ES, DTS Neo:6, Dolby Pro Logic IIx, etc. | | Room Correction | YPAO (Yamaha Parametric Room Acoustic Optimizer) for automatic speaker setup | DACs | 192 kHz/24-bit Burr-Brown DACs for all channels | | Video Connectivity | 2 x HDMI Inputs / 1 x HDMI Output (1080p compatible, switching only) | | Other Connectivity | 3 x Component Video In / 1 Out, 2 x Optical Digital In, 1 x Coaxial Digital In, 7.1-channel analog audio input | | Front Panel Ports | USB port (for USB drives/portable audio) and Mini Jack | | Multi-Zone | Zone 2 Audio Output (Line-level only) | | Dimensions (W x H x D) | 435 x 151 x 352 mm (17-1/8" x 5-5/16" x 13-7/8") | | Weight | Approx. 9.0 kg (19.8 lbs) | Key Features of Note * HDMI Switching: It acts as a switch for your 1080p video sources, simplifying connection to your display (though it does not decode newer formats like Dolby TrueHD/DTS-HD Master Audio, which were available on higher-end models of that era). * YPAO: Yamaha's room calibration makes setup easier and optimizes the sound for your specific listening environment. * Compressed Music Enhancer: A feature designed to improve the quality of compressed digital music files (like MP3s). * Bi-Amp Capability: The back surround speaker channels can be reassigned to bi-amp the front main speakers for potentially better stereo performance.