Denon AVR-X1700H 7.2 Ch. HDMI 2.1 receiver - Value Electronics
What is HDMI 2.1, and why do I need it?
HDMI 2.1 Bug Fix for Denon & Marantz 2020 AVRs is Coming! Xbox Series X Support - YouTube
AVR-X8500H HDMI 8K Upgrade - Module upgrade for AVR-X8500H to HDMI 2.1 specifications | Denon - US
Denon AVR-X2700H 7.2 Ch. HDMI 2.1 receiver - Value Electronics
Denon announces refreshed 8K AV receiver lineup with loads of HDMI 2.1 ports | TechSpot
Amazon.com: Denon AVR-S770H 7.2 Ch Home Theater Receiver (2023 Model) - 8K UHD HDMI Receiver (75W X 7), Wireless Streaming via Built-in HEOS, Bluetooth & Wi-Fi, Dolby TrueHD, DTS Neural:X & DTS:X
Denon's HDMI 2.1 Receivers - Value Electronics
Best 4K/120 and 8K/60 Gaming AVR with 40 Gbps HDMI 2.1 HDR10 and VRR passthrough for GeForce 30-series graphics cards and Xbox Series X - STEIGER DYNAMICS
Denon and Marantz will add HDMI 2.1 to these older receivers for $600