Received SPK618 Adaptor from Denon for HDMI 2.1 fix. Sharing pics if you wondering how much extra space it would take with your current setup : r/hometheater
Denon & Marantz Solve HDMI 2.1 Bug With SPK618
Denon & Marantz lösen Probleme mit 4K/120 Hz und 8K über kostenlosen Adapter - 4K Filme