Sound Devices Astral ARX8 firmware v8.40

New

Added support for the new Astral Mini Plus transmitter

Quick Setup inter​nal memory slots increased from 4 to 8

Changes

Audio Output > Global RX Output Gain range is now –20 to 40 dB

Added an RX Power Off confirmation option in Notifications. When enabled, ARX prompts “Are You Sure?” before powering off

Loading Factory Defaults now performs a full reset: unpairs all transmitters, restores default settings, and clears internal memory slots

Tone generator is now disabled after a power cycle

ARX now displays Astral TX battery level as a percentage

Faster boot time

Fixes

RF On commands from physical transmitter controls now turn off RF on other transmitters assigned to the same receiver channel

RF Off Confirmation now works correctly with multiple transmitters on one RX channel

Receiver channels retain last transmitter name after power cycle; clear by toggling RX channel off/on

Improved XLR, lav, a​nd guitar input selection UI in 1RX View and TX List

ARX displays a warning if transmitter recording fails (e.g., faulty or misformatted card)

RX channel Aux 2 and 3 outputs now fade in/out when toggled

Internal tone bypasses RX Channel HPF

Firmware Update Guide (HTML) Firmware Update Guide (PDF)