Introducing an advanced level of home audio enjoyment from Pioneer, the VSX-831 AV Receiver. Incorporating a new array of innovative technology, the VSX-831 features Pioneer's unique automatic sound adjustment process, Multi-Channel Acoustic Calibration System (MCACC)i for in-room fine-tuning. Connect to all your favorite music connect to all your favorite music sources with support for the latest dual band Wi-Fi network connection to stream Google Cast®*, TuneIn®*, DEEZER®* or TIDAL*. The new 384/32 DAC providing superior playback of all resolutions of music from MP3s to Hi-Res audio files. Pioneer upgraded the VSX-831 with a robust 5.2-channel receiver featuring a 140 watt/channel (6 ohms, 1 kHz, THD 1.0 %, 1ch Driven) to ensure you have the ultimate musical experience. As an innovative solution for phase lag between the subwoofer and main L+R speakers, Phase Control compensates for delayed bass to improve sound synchronization. As a result, it makes LFE more dynamic and achieves clear reproduction of sound in the mid and high frequency bands. With a high-grade 384kHz/32bit DAC (digital to analog convert AK4458) produced by AKM, the VSX-831 delivers clear, delicate audio reproduction provided by the unique digital filter that achieves extremely low distortion. Pioneer's MCACC (Multi-Channel Acoustic Calibration System), helps you create the optimum acoustic environment in any room in the house. Developed with the expertise of professional recording studios, MCACC lets you create the ideal acoustic environment. With a custom microphone, the system automatically compensates for differences in speaker size, level and distance, and equalizes response. Whether you're watching the latest Hollywood blockbuster or enjoying high-resolution music, MCACC will make sure your home theater sounds its best.