Onkyo TX-RZ50 Firmware Update Notes

07/01/2025 Update

• Fixed an issue where DLBC/DLBM crossover was applied incorrectly. Re-export/transfer the filter (target EQ) to each slot after update.
• Minor bug fixes and stability improvements.
• Added setup microphone switching procedure. Refer to details.

03/12/2025 Update

• Fixed an issue where no sound was output during Bluetooth playback from an iPhone.
• Fixed an issue where Dirac filters were not applied correctly with certain speaker configurations.
• Minor bug fixes and stability improvements.

10/28/2024 Update

• Added Dirac Live Bass Control. Register with Dirac Live and obtain a license: https://www.dirac.com/online-store/onkyo-tx-rz50/
• Added Amazon Music HD.
• Added Dolby Atmos Music Playback Capability for Amazon Music HD and Tidal Native Playback.
• Added Source Based Tone Mapping for HDMI2.1a.
• Improved Amplifier Power supply sequence.
• Added Google Cast 2.0. Network connection method changed. Refer to details.
• Support Tidal MAX.
• Improved Dirac Live measurement on the Onkyo Application.
• Minor bug fixes and improvements stability.

04/23/2024 Update

• Minor bug fixes and stability improvements.

09/05/2023 Update

• Fixed an issue with OSD signal messages when connecting an Optoma projector.
• Fixed an issue where enabling Bluetooth transmission prevented HLG display.
• Minor bug fixes and stability improvements.

03/30/2023 Update

• Minor bug fixes and stability improvements.
• Updated supported speakers for Klipsch Optimized Mode, including ceiling/wall-mounted speakers/subwoofers. Changed UI for speaker selection.
• Added ALLM, VRR information to OSD Info/Status/One Shot display for input signals.

09/09/2022 Update

• Updated compatible speakers for Klipsch Optimized Mode, adding Klipsch Reference Premiere series new models.
• Improved stability of Bluetooth Transmitter function.
• Increased Dirac delay time upper limit from 20 msec to 50 msec.
• Added recovery process for Network Error in Dirac.
• Minor bug fixes and stability improvements.

05/18/2022 Update

• Added Klipsch Reference Premiere II series speakers to the compatible speakers for Klipsch Optimized Mode.
• Improved mic curve characteristics of Dirac live for the attached mic. Re-measure Dirac live after this update for better sound if Dirac live was already measured with the attached mic.
• Minor bug fixes and stability improvements.

01/12/2022 Update

• Chromecast built-in version updated to 1.52GM2.
• Improved reception capability for certain TuneIn Radio stations.
• Fixed an issue where Deezer playback failed when not logged in.
• Fixed an issue where Web Setup could not be accessed depending on Dirac Live measurement results.
• Minor bug fixes and stability improvements.

10/14/2021 Update

• Chromecast built-in version updated to 1.52.
• Fixed no sound and video issue via eARC connection from SONY TV.

07/20/2021 Update

• Added "Klipsch Optimized Mode" function. Refer to details.
• Added Virtual Remote, Limit Mode, and HDMI diagnostic functions to the Web Setup Menu.
• Fixed the audio format of TIDAL playback to AAC.
• Fixed color corruption in Dolby Vision games on Xbox.
• Fixed an issue where the image would not be displayed when VRR was turned on for Xbox.
• Fixed an issue where High Bit Rate Audio (e.g., Dolby TrueHD) was not output at 4K or 8K resolution signals.
• Fixed an issue where audio was not output from TV speakers when playing High Bit Rate Audio (e.g., Dolby TrueHD) in TV audio output mode.
• Fixed a problem with the HDMI diagnostic function Source Test.

Updating the firmware via network

You can update the firmware by connecting the unit to a network.

Updating the firmware via USB connection

You need a 128 MB or larger capacity USB storage for updating.