I got my Yamaha RX-V779 Receiver last night and set it up. Here are some links to its specifications and some observations about the receiver. I will keep this first post up to date with all of the latest information and issues(If those come up) for the receiver.
Yamaha RX-V779BL 7.2-Channel Wi-Fi Network AV Receiver with Bluetooth. MSRP = $849.95. Current Street Price = $799.95.
Full Support of HDMI 2.0a Spec: 4K Ultra HD Video Upconversion, HDCP 2.2 and High Dynamic Range (HDR)
Bluetooth® for wireless music streaming and Compressed Music Enhancer for Bluetooth
Built-in Wi-Fi and Wireless Direct
AirPlay®, Pandora®, Rhapsody®, Spotify®, SiriusXM™ music streaming service and AV Controller App
DSD 2.8MHz / 5.6MHz, FLAC / WAV / AIFF 192 kHz / 24-bit, Apple® Lossless 96 kHz / 24-bit playback
YPAO™ - R.S.C. with multipoint measurement
HDMI Zone B for audio / video streaming to another room (same content as main room)
Aluminum front panel for enhanced rigidity
Binding posts for all speaker terminals
7.2-channel surround sound
7.2 Channel Pre-outs for use with an external amplifier
YPAO™ - R.S.C. with Multipoint Measurement
YPAO™ Volume to Ensure Natural Sounds Even at Low Volume
SCENE for One-touch Start
CINEMA DSP 3D and Virtual Presence Speaker
Advanced Multilingual GUI On-screen Display
1. It can connect to 2.4 Ghz wireless connections but not 5.0 Ghz connections
2. The default 4K video Mode is 4:2:0. You must change to Video Mode 1 to pass 4K @ 60 FPS 4:4:4 video.
3. There is only a single power button toggle switch on the remote. It does not have discreet commands to turn power on and off on the remote. This can present issues with CEC HDMI control if not setup properly.
4. The Default Speaker Impedance is 8 Ohms. It can be configured to handle 6 Ohm speakers and 4 Ohm speakers for the front channels.
5. Only HDMI 1-3 are HDCP 2.2 compliant
6. The receiver already has a firmware update available. It took about 20 minutes to complete last night.
7. Harmony has not added the Yamaha RX-V779 to their list of supported devices yet. I had to manually configure my receiver to work with the Harmony remote.
8. The Yamaha TSR-7790BL is an identical clone with the same MSRP
9. The receiver does support true 60 FPS. It will only allow 59.97 FPS from my computer at 1080p. This does not always appear to be the case. I was able to get 1080p @ 60 FPS 4:4:4 to work by switching to HDMI output 2 only. It will probably work with output 1 only as well.
10. The receiver did not appear to support UHD/4K @ 59 or 60 FPS at all. When I connect my computer directly to the TV it will allow 4K @ 60 FPS. However, when I connect it through the receiver it only allows 30 FPS. That was even with changing the 4K video mode to Video Mode 1 which should allow 4K @ 60 FPS 4:4:4 but it does not appear that it does allow that. It will probably need a firmware update to fix this.
UPDATE: 4K @ 60 FPS started working all of a sudden. It is not 4:4:4 but that is because my video card does not support it. However, 4K/UHD @ 60 FPS is now working properly as well as 1080p @ 60 FPS 4:4:4. The only thing I changed is that I was outputting over HDMI 1 and HDMI 2 outputs before. I am only outputting over HDMI 2 only now.