Sound Devices Astral ARX16/ARX8 firmware v1.70

Last updated October 1, 2025

Support for the Astral Outpost remote NexLink antenna box.
RF Mirror Mode. Permits a secondary ARX16 to mirror a primary Astral ARX16’s RF and NexLink settings. Ideal for providing backup in mission critical applications.
Added eight user-configurable TX groups in addition to the ‘All’ TX Group.
The TX Group menu now includes a drop-down list in OLED 1 to select which group of transmitters to control. Transmitters are assigned to groups via the TX List.
Refreshed web app user interface.
BLE pairing of Astral ARX16 with Astral Remote for easy synchronization of country, date, and time between Astral transmitters and Astral ARX16.
Added Lav Mic Type option to select between Normal and 3-Wire Lav mics.
Transmitter formatting status is now displayed as a popup on the front panel and in the web app during the format process.

‘-’ and ‘_’ characters are now allowed in the virtual keyboard for transmitter name.
The privacy button goes green to indicate when Privacy is enabled between a transmitter and receiver channel.
Removed the Power On/Off buttons from the TX List to make space for the new Group Ctrl button.
Renamed NexLink Tuning Mode ‘Push to Transmitters’ to ‘Automatic’.
Removed Daylight Savings toggle from the System Menu since the Time Zone setting already takes that into account.