Sony STR-ZA3100ES 7.2 Channel 4K AV Receiver
 
Product Description
Enjoy flexible connectivity, powerful configurability and renowned ES quality in this 7.2 channel 4K AV receiver with Dolby Atmos and DTS:X object-based surround sound. Add in full 4K HDR compatibility and easy IP integration with leading control systems and you have the total package of installation-friendly features and audio/video performance.
7.2 Ch. 110W per channel (8ohms, 1KHz, 0.9%, 2CH)
Supports Dolby Atmos, and DTS:X object based surround up to 5.1.2 plus two phantom rear surround channels
4K HDR compatibility 6-in/2-out HDMI flexibility with HDCP 2.2 support
Digital Cinema Auto Calibration EX with speaker relocation technology
8-port Giga-bit Ethernet switch with PoE (x2) support for flexible connectivity
Optimized especially for custom in-home integration, and system configuration - Seamless IP Control integration with the leading control systems
Music connect allows integrators to combine the power of an ES-grade multichannel sound system with the flexibility of today's wireless multi-zone music systems.
Three DSPs (digital signal processors) to reduce unwanted electrical noise
Flexible multi-zone distribution with IR repeater (1-in, 1-out) for external device control
In-ceiling speaker mode for natural, rich front-channel sound staging
Optimized chassis and internal circuitry for incredible audio performance
 
Features
Premium audio quality
With 110W per channel, the STR-ZA3100ES delivers cinema-like surround sound and crystal clear music reproduction (100W @ 8 ohms, 1 kHz, THD 0.9%).

For special installations, the amplifier can be configured to support: 2 pairs of speakers either independently (A or B) or simultaneously (A and B), in addition to Bi-Amp fashion.
 
Supports Dolby Atmos, and DTS:X object based surround
You'll feel like you're inside the action as the sounds of people, music, and objects move all around you in three-dimensional space. Can't fit seven channel surround? Phantom rear surround channels will transform your five channel system into a seven channel system
 
4K HDR, 6 HDMI inputs for system flexibility
Flexible connectivity with 6 assignable HDMI inputs and 2 outputs supporting HDR and HDCP 2.2

In addition the ZA1100ES allows full, native 4K video content pass-through to 4K capable televisions and projectors, and even up-scales high definition movies and TV shows to 4K quality.
 
Standby Audio/Video signal pass-through
Enjoy convenient access to all of your HDMI 
 
Digital Cinema Auto Calibration EX with speaker relocation technology
D.C.A.C. EX with stereo mic is Sony's unique auto calibration technology. This technology balances output to closely simulate sound as would be produced by optimally positioned and angled speakers. The results are nothing short of breathtaking, with the entire sound field seamlessly integrated for outstanding surround sound.