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YAMAHA RX-A4A Home Theatre Receiver User Guide - Manuals+
RX-V385 - Specs - AV Receivers - Audio & Visual - Products - Yamaha - United States
Yamaha announces new generation of AV receivers with HDMI 2.1 - FlatpanelsHD
Why would HDMI Output on Receiver Stop Working? | AVS Forum
Report: latest AVRs from Sony, Denon / Marantz, Yamaha, etc. have a bug in the HDMI 2.1 chip - unable to pass through the 4k120hz HDR10 signal (german article) : r/xboxone
Yamaha launches first AV receivers with multiple HDMI 2.1 inputs - FlatpanelsHD
Receivers With 2 HDMI Output - BoomSpeaker
Yamaha AV Receiver HDMI sound problem fixed - YouTube