The VSX-531 is an ideal centre piece for creating your own 5.1 home cinema system. Featuring 4 HDMI inputs and Ultra
HD (4K/60p/4:4:4) pass-through with HDCP 2.2, the AV receiver supports the latest video standards HDR. Enjoy audio
streaming from compatible devices with the built-in Bluetooth® Wireless Technology. Pioneer’s signature MCACC and
Phase Control provide synchronised sound for a realistic and dynamic performance.

See More Detail with 4K/60p Pass-through
The feature lets you take advantage of the highest quality video source, by passing through 4K/60p /4:4:4 signals for viewing on a compatible display. The VSX-531 supports HDCP 2.2, so by connecting to a compatible device, you can enjoy premium content such as 4K videos with digital copy protection.

Built-in Bluetooth® Wireless Technology
With the built-in Bluetooth® Wireless Technology (ver. 3.0), you can easily stream songs from compatible devices. The VSX-531 features A2DP profile, with support for SBC and AAC codecs.

MCACC Auto Room Tuning
Create the optimum acoustic environment with Pioneer’s MCACC (Multi-Channel Acoustic Calibration System), developed with the expertise of professional recording studios. With the custom microphone, the system automatically compensates for differences in speaker size, level and distance, and equalises response. NOTE: THE MEASUREMENT MICROPHONE IS NOT INCLUDED

Synchronised Sound with Phase Control
When amplifying multi-channel audio signals, receivers use a Low Pass Filter (LPF) to process low-frequency signals for subwoofer output. This causes phase shift of the low-frequency signals compared to the main channel signals, and the delayed bass makes the sound lack synchronisation. Pioneer’s Phase Control technology effectively eliminates phase lag and reproduces clearer mid and high-range sound. You can feel the bass vibrating the air and deeper voices in films, and the groove of the performer in music content. The "Phase Control" Compensates for the Delay of Low-Frequency Sound.

Front USB Input
The front panel USB input terminal allows straightforward connection to a USB memory stick. This plug and play connectivity enables you to easily play music files or watch JPEG pictures.

Hear Every Detail with Dolby TrueHD/DTS-HD Master Audio
The VSX-531 supports Dolby TrueHD and DTS-HD Master Audio surround soundtracks, letting you experience the world of true high-definition entertainment from Blu-ray Discs. The lossless codecs are bit-for-bit identical to the studio master.

Enjoy Quality Sound from Compressed Audio
The Advanced Sound Retriever restores the output of compressed audio such as WMA, AAC, and MP3, to the level of CD sound. The technology creates new signals to restore the minor details left out during the compression process.

THE UNIT WAS WORKING WHEN TAKEN OUT, BUT I DO NOT HAVE ANY WAY OF TESTING IT NOW SO UNABLE TO GUARANTEE THE STATUS AS SHIPPED.