Incorporating a new array of innovative technologies, this 5.2-channel receiver features 4K Ultra HD (4K/60p/4:4:4) pass-through with HDCP 2.2, and delivers up to 140 Watts per channel. It features Pioneer’s unique automatic sound adjustment process for in-room fine-tuning, and comes with standard support for all of the latest HDR video technologies. 
Pioneer® 5.2 Channel AV Receiver
Incorporating a new array of innovative technologies, this 5.2-channel receiver features 4K Ultra HD (4K/60p/4:4:4) pass-through with HDCP 2.2, and delivers up to 140 Watts per channel. It features Pioneer’s unique automatic sound adjustment process for in-room fine-tuning, and comes with standard support for all of the latest HDR video technologies. Through Bluetooth and Wi-Fi, customers can also stream their favorite music sources such as Google Cast®, TuneIn®, Deezer® or TIDAL. *
4K Ultra HD and HDR Compatible
Ready for an upgrade to your audio experience? This receiver transmits 4K/60p/4:4:4 24-bit video signal and also features HDCP 2.2, ensuring steady access to a variety of current and upcoming 4K Ultra HD sources that feature HDR. Ultra-high-resolution 4K upscaling technologies have also been incorporated to upscale ‘standard’ HD-quality content to the quality of a 4K video signal. 
Steady At Up to 140 Watts/Channel
Pioneer upgraded the VSX-831 into a 5.2-channel receiver; it now delivers up to 140 Watts/channel (6 ohms, 1 kHz, THD 1.0 %, 1ch Driven) to ensure you have the ultimate musical experience. 
Amp Up The Low End
As an innovative solution for phase lag between the subwoofer and main left and right 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. 
New DAC Delivers Low Distortion
With a high-grade 384kHz/32bit digital to analog convert (DAC) produced by AKM, this receiver delivers clear, delicate audio reproduction provided by the unique digital filter so it achieves extremely low distortion. 
MCAAC®
Pioneer’s MCACC (Multi-Channel Acoustic Calibration System) allows the end user to create the optimum acoustic environment. Developed with the expertise of professional recording studios, the system automatically compensates for differences in speaker size, level and distance, and equalizes response. Whether your customer is watching the latest Hollywood blockbuster or enjoying high-resolution music, MCACC will make sure their home theater sounds its very best. 
A (Wireless) Revolution
Enjoy music wirelessly via built-in Wi-Fi and Bluetooth technology! Each receiver is compatible with iOS® and Android™ devices, BlackBerry®, laptops and more! Two antennas provide dual band Wi-Fi (2.4GHz and 5GHz) for a greater network range and throughput so everything streams smoothly. 
Now Featuring Google Cast
For the first time, customers can use their mobile devices to play back their favorite music, radio or podcasts through an AV receiver! They can control the audio from anywhere in the house using Google Cast-enabled apps available for iPhone, iPad, Android phones and tablets, Mac and Windows computers, and Chromebooks. 
Multi-Room Audio
FireConnect ™ Powered by Blackfire allows end users to play any audio source connected to the receiver—from vinyl to streaming audio—wirelessly to a FireConnect compatible speaker placed anywhere in the home. Stable, fast, and easily controlled, it’s the smart way to set audio free. 
Support For The Latest Codecs
Now that the Hi-Res audio revolution is becoming more mainstream, the VSX-831 receiver now supports additional emerging file formats: 192kHz / 24-bit high-resolution FLAC, WAV, AIFF and Apple lossless file formats as well as DSD (2.8/5.6MHz) *8 files. 
Uncompressed HD Audio
Pioneer receivers also support a wide range of high-definition audio formats, including Dolby® TrueHD® and DTS-HD®, to ensure listeners get the full audio experience that the artist intended. 
Package Contents
(1) VSX-831
(1) MCACC Microphone with Wire
(1)Remote Control
(1)AA Batteries for Remote Control
(1)Manual 
*Google Cast and Tidal available in Fall 2016 (update required).