Denon Avr E300 Firmware Update [exclusive] -

The E300 supports Audio Return Channel (ARC) on HDMI Out 1. If you have an older TV (pre-2017), connect them via HDMI ARC. You’ll get TV apps like Netflix to send audio back to the Denon. No update needed.

The Denon AVR-E300 "E-Series" receiver was marketed as an entry-to-mid-level solution for home theater enthusiasts, featuring early integration of Apple AirPlay, internet radio, and 3D video pass-through. Unlike modern AVRs that receive frequent over-the-air feature additions, the E300’s firmware lifecycle was primarily focused on stability and compliance. Denon Avr E300 Firmware Update