The single most common complaint about the AVR-591 involves the HDMI signal dropping out intermittently—screen goes black, audio cuts out, then everything returns after a few seconds. A user on AVSForum described experiencing this “5-10 times during a movie” across multiple input sources including a PS4 and a computer.
While the AVR-591 itself lacks Wi-Fi, its higher-end sibling the AVR-1611 includes network connectivity. Many firmware components are shared across the model family. Network-related patches improved DLNA media streaming stability and reduced buffering issues when accessing content from networked PCs or NAS devices.
Here are a few additional tips and tricks to get the most out of your Denon AVR-591:
Resolving Denon AVR-591 HDMI and Audio Bugs: The Ultimate Firmware Update Guide denon avr591 firmware update patched
The Denon AVR-591, introduced over a decade ago, remains a surprisingly capable AV receiver for budget-conscious home theater enthusiasts. With its five channels delivering 75 watts each (375 watts total) and support for Dolby TrueHD and DTS-HD Master Audio, it punches well above its weight class. But like all electronics, especially those from the HDMI 1.4 era, the AVR-591 has its quirks—most notably the intermittent HDMI handshake failures and signal dropouts that have plagued owners for years.
Instead of routing both video and audio through the receiver, split the signals:
While official files are scarce, this is the procedure you would follow if you have a valid firmware file. The single most common complaint about the AVR-591
Do you already own a , or do you need a recommendation?
: Refine DSP (Digital Signal Processing) for better surround sound accuracy.
Denon AVR-591 Firmware Update Patched: Everything You Need to Know Many firmware components are shared across the model family
The latest firmware update for the Denon AVR-591, which has been patched, addresses several key issues:
Unlike modern Networked receivers (such as the Denon X-Series), the