Downloads

A20-Nexus/Nexus Go firmware v8.10

Released: April 23, 2025

Download v8.10

NOTE: If updating an A20-SuperNexus from v1.00, any attached A20-Opto needs to be physically unlinked and removed during the update. Versions v1.01 of A20-SuperNexus and above do not require this step. 

New

• Ability to trigger DiGiCo console macros from Astral transmitters and receivers. 
• Added the ability to select which RX Channels should be AutoAssigned. 
• Added Outputs 1-64 to the SuperNexus Web App > Audio tab and Outputs 1-32 to the Nexus Web App > Audio tab. 

Changes

• RF sensitivity improved in both LR and Std by 3 to 5 dB, depending on antenna mode and proximity to antennas. 
• Improved RF demodulation for significantly improved multipath performance and multi-antenna performance. 
• Added an ‘Are You Sure’ confirmation popup when Network > Restart Network’ or ‘Clear Dante Settings’ are selected [SuperNexus only]. 
• Added an ‘Are You Sure’ confirmation popup for Group TX format commands from the SuperNexus OLED GUI. 
• The TX List Search icon has been changed to a more obvious blue icon. 
• The Nexus RSSI meter range changed to –100 to –65 dBm. The SuperNexus RSSI meter range was already changed in v2.00. 
• Changes to RF Mirror Mode button layout in the Network Menu to accommodate the new ‘Mirror DiGiCo Console List’ control. 
• Updates to Frequency Tables: Added Poland, Saudi Arabia, South Africa, Taiwan, and Revised UK 
• Replaced NexLink Tuning Mode [Automatic, Manual] setting with an On/Off Toggle switch labelled: 
  "Manually set Frequency, Modulation, and Privacy on Transmitters".  
• When set to On, Frequency, Modulation, and Privacy must be changed manually on the transmitters and on the Astral receiver. 
• When the Toggle is set to On, NexLinked transmitters that are powered on display orange NexLink RSSI level bars instead of green. 

Fixed

• Fixed an issue where sometimes the A20-Opto would fail to initialize on boot up [SuperNexus only]. 
• The sync reference warning no longer occurs on boot up when synced to Dante or during a firmware update. 
• Fixed an issue where, in the fully zoomed out Scan View, the OLEDs would flash about every 10 seconds [SuperNexus only]. 
• RF signal with very low Q now has its audio muted. 
• The A20-Mini option for "Power on when removed from power station" has been added to the SuperNexus’s 1RX View and TX List. 
• Fixed an issue where the A20-Nexus clock drifts from the Dante clock when ‘Sync to external’ is enabled in Dante Controller. 
• False ‘Format Failed’ messages no longer occur when formatting a transmitter. 
• Various other system improvements. 

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

A20-Nexus/Nexus Go firmware v2.00

Released: December 04, 2024

Download v2.00

New

• Support for the A20-HH wireless handheld microphone. 
• Aux Output routing - the ability to change a receiver channel’s audio output routing directly from the A20-HH or A20-TX. Ideal for talkback, guitar tuning, etc. 
• A20-Nexus Dante audio outputs increased to 32 channels. 
• Added flexible tone routing matrix and ability to set tone frequency. 
• Added Dante Redundancy to the A20-Nexus. 
• Added 32 channel audio metering. 
• Ability to unlock restricted frequencies via Frequency Authorizations. Appropriate licenses required. 
• Initial pairing of transmitter-to-Nexus wirelessly in addition to existing USB-C cable method. 
• Ad-hoc Handoff of NexLinked transmitters between Astral Receivers. Ideal for large, multi-Astral Receiver shows. 
• Added Transmitter RF On/Off NexLink® button. 
• Assigning a transmitter to an already populated RX Channel in the TX List now offers both Add and Replace options. 
• Screen borders now flash when any transmitter is low on battery. 
• Web App updated to incorporate all new features. 
• Miscellaneous system improvements and optimizations 

Changes

• Standardized Menus across transmitters, A20-Nexus, A20-SuperNexus, and Web App 
• Changed Global TX Settings to ‘Notifications’ and consolidated all confirmation and warning options into this one popup, now two OLEDs wide. 
• Moved Transmitter LEDs On and Off buttons to the 1RX View and TX List Gear menus. 
• Improvements to AutoAssign algorithm. 
• Removed redundant ‘RF Off’ position from the Frequency Selector. Use the RF On/Off toggle instead. 
• Changes to Network menu to accommodate Dante Redundancy feature. 
• Network DHCP/Static address setup now integrated into the Network Settings Edit popup such that all network settings are applied in a single step. 

Fixed

• Fixed low headphone output level.  
• Audio blip in headphones when going in and out of a 1RX View (soloing) is now fixed. 
• A receiver channel’s RSSI meters now always show RF signal strength regardless of whether demodulating a transmitter or not. 
• Fixed rare RF tuning issue which could result in audio ducking or dropouts. 

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

A20-Nexus/Nexus Go firmware v1.70

Released: August 15, 2024

Download v1.70

New

• Support for the A20-Outpost-NL remote NexLink antenna box. 
• RF Mirror Mode. Permits a secondary A20-Nexus to mirror a primary A20-Nexus’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 A20-Nexus with A20-Remote for easy synchronization of country, date, and time between A20 transmitters and A20-Nexus. 
• 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. 

Changes

• ‘-’ 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. 

Fixed

• Improved identification of Wisycom smart antennas. 
• Various minor system improvements and fixes. 

A20-Nexus/Nexus Go firmware v1.63

Released: May 21, 2024

Download v1.63

New

• Add support for T&M (Test and Measurement) modulation.

Changes

• Improvements to AutoAssign algorithm. 
• Faster unmuting of NexLinked transmitters. 

Fixed

• System Date/Time changes now automatically get sent to NexLinked transmitters. 

A20-Nexus/Nexus Go firmware v1.61

Released: March 12, 2024

Download v1.61

New

• User-nameable internal memory setup slots 

Fixed

• NexLink now reconnects to transmitters that are coming back from the edge of range. 
• Rare loss of channel lock is now fixed. 

A20-Nexus/Nexus Go firmware v1.60

Released: February 20, 2024

Download v1.60

New

• Group All TX commands for Record, RF Power On/Off, Mute, Format, ID 

Changes

• Updated available country list
• Faster powering on/off of A20 transmitters 
• Web App: Prevented dragging a TX to a frequency within 300 KHz of another in the RTSA. 
• ‘-’ and ‘_’ characters in the transmitter name virtual keyboard are now permitted 

Fixed

• Improvements finding clean frequencies when using AutoAssign 
• Changing from a tuning band to an overlapping tuning band no longer prevents receiver channels from RF locking. 
• Web App TX List does not scroll when you have more than 8 transmitters in the list 
• Web App Nexus Overview screen doesn't show an A10-TX's record status 
• Various Web App improvements. 

A20-Nexus/Nexus Go firmware v1.55

Released: January 29, 2024

Download v1.55

Fixed

• Rare, intermittent inability to lock to transmitter RF signals. 
• Transmitters not always reconnecting to NexLink after going out of range. 

A20-Nexus/Nexus Go v1.54 Firmware

Released: November 16, 2023

Download v1.54

New 

• Added a Waterfall display to the Web App RTSA for monitoring the RTSA history. 
• Added RSSI Peak Hold to Web App RTSA. 
• Added new RF History option, RSSI + Q, to the Web App and Nexus front panel RX views. 
• Added ‘The screen is locked’ popup when a screen is touched in ‘Show Mode’. 
• Added ability in the Web App to click and drag a transmitter/receiver pair to a new frequency in the RTSA. 

Changes 

• Changed RSSI ‘B’ antenna metering and RTSA color to white to clearly differentiate it from the blue of antenna A. 
• Web App RTSA – new button layout to accomodate Waterfall and Peak Hold features. 
• RSSI meters behavior changed so that they stay active even with no carrier lock. 

Fixed 

• Improvements to NexLink reconnection after transmitters are powered down or go out of range. 
• Various RF tuning and diversity enhancements. 
• Export Trace CSV format modifications for improved compatibility with database programs such as IAS, Wireless Workbench, etc. 
• Fixed bug in power source selection where PoE warning could pop-up even with DC powering 

A20-Nexus/Nexus Go v1.53 Firmware

Released: September 13, 2023

Download v1.53

New 

• Touch can now be disabled to prevent inadvertent switching of the screens to different views. Press and hold the Headphone Knob for > 2 secs to disable and re-enable. Disabled touch is indicated by a thin orange border surrounding the four OLEDs. The Headphone Knob and Triangle button remain active when touch is disabled. 

Fixed 

• Rare distortion with very low frequency signal sources no longer occurs. 
• Random freezing of the Web App Scan view no longer occurs. 

A20-Nexus/Nexus Go v1.52 Firmware

Released: August 24, 2023

Download v1.52

New 

• Support for new A20-TX RF on/off toggle switch option 

A20-Nexus/A20-Nexus Go v1.51 Firmware

Released: August 10, 2023

Download v1.51

Changes

• Extended Gain range to -6 to 60dB and removed now superfluous ‘Gain Range’ button. 
• Increased Audio Offset range to +/- 20dB 
• Web App UI improvements 
• Meter scale improvements 

Fixed

• NexLink improvements 

A20-Nexus v1.50 Firmware

Released: July 25, 2023

Download v1.50

New 

• Support for the A20-TX transmitter 
• Support for receiving VHF transmission 
• Added ‘Show Mode’ to the Web App. This is a read-only mode that prevents inadvertent changing of settings. 
• Added transmitter names to the Web App RTSA. 
• Support for Privacy mode 
• Added TX View menu for monitoring and setting TX-only functions, even when transmitters are not assigned to receiver channels. 
• Added Audio Offset and Gain Range buttons to the 1RX View, which are accessed by pressing the ‘More’ button on OLED2. 

Changes 

• Increased maximum number of paired transmitters to 64 
• Transmitters no longer have to be assigned to a receiver channel to be monitored and controlled over NexLink. 
• Multiple transmitters can now be assigned to the same receiver channel.  
• Enhanced TX List menu with transmitter battery level, frequency, NexLink RSSI and TX View.  
• Edit transmitter names directly from the TX List by tapping the name. 
• The NexLink RSSI meter is now white for a powered-off transmitter. A powered-on transmitter’s NexLink RSSI meter is still green. 
• The collapsed 4RX views in the Web App now show audio meter, Q-meter, transmitter name and battery level. 
• Added audio meter scale markings 
• Various UI layout changes to the 1RX View and its Gear menu to accommodate new Audio Offset and Gain Range buttons.  
• Mode button (RF Only, REC only, REC+RF) moved to the new TX View menu. 

Fixed

• Audio metering release time improved. 

A20-Nexus v1.40 Firmware

Released: May 16, 2023

Download v1.40

Important: After installing the firmware, it is essential that A20-Minis are unpaired, then re-paired with the A20-Nexus. 

Note: To ensure best performance, always run the latest version of A20-Nexus with the latest version of A20-Mini. 

New 

• Added a Tone Generator with adjustable level 
• Added ‘Show Audio Off Warnings’ toggle in System Menu page 2. When the toggle is off, the A20-Nexus does not show warnings that audio will stop when switching Tuning Bands and when switching to Scan mode. 
• Added transmitter mute status to the 4RX, 8RX and All Views 
• Added combined Rec/Mute icon (blue circle with red border) in the 4RX, 8RX and All Views and Web App overview screen to indicate when a transmitter is simultaneously recording and muted.  

Changes 

• Added Polarity confirmation popup to prevent accidental polarity changes in 1RX view. 
• Web app Audio and Q meters moved to mimic their position in the A20-Nexus OLED screens. 
• Audio metering range for A20-Mini received audio signal changed to –100 to 0 dBFS to better scale to the wide dynamic range of GainForward. 

Fixed 

• Faster communication with the Wisycom LFA smart antenna. 
• When set to ‘Never’, the Screensaver no longer comes on after several hours. 
• Various Nexus and Web app improvements  
• Received audio signal from an A10-TX in LR mode is now at the correct level. 
• A10-TX audio metering level is now displayed correctly. 

A20-Nexus v1.30 Firmware

Released: April 12, 2023

Download v1.30

Important: After installing the firmware, it is essential that A20-Minis are unpaired, then re-paired with the A20-Nexus. 

Note: To ensure best performance, always run the latest version of A20-Nexus with the latest version of A20-Mini. 

New

• Added Scan capability to the Web App RTSA view. 
• Ability to define the AutoAssign Start/Stop range within the tuning band. 
• Added 60 Hz option to the HPF. HPF not available when using the A20-QuickDock 

Changed

• Added RF On/Off toggle to the Set Frequency popup so that the RX channel can be turned off to save power while keeping the last frequency setting. 
• Added the ability to edit a Nexlinked transmitter’s name when the TX is powered off. 
• Added ‘Are You Sure?’ popup when unpairing a transmitter from the TX List. 
• Increased font size of RTSA blue marker frequency/dBm display and yellow frequency min/max labels. 
• In ALL View (12ch and 16ch only), tapping the 4ch bottom label now selects the associated 4RX View. 
• It is now possible to set the RF frequency from the 1RX and 4RX views when the channel is sourced from a NexLinked transmitter that is currently not connected. 
• Scan width is now variable and controlled by the HP knob when set to zoom horizontal mode (yellow zoom icon). 
• Scan Mode title added to the top of 4^th screen in the Scan View. 

Fixed

• Improved response of the NexLink signal strength meters. 
• All RX View now flashes the frequency field red when there is a country conflict. 
• HP knob press function now works the first time after powering up. 
• Improvements to Wisycom LFA/BFA smart antenna communication. 
• The 31^st day is now selectable for applicable months in the Date/Time popup. 
• Various system and web app improvements 

A20-Nexus v1.20 Firmware

Released: February 14, 2023

Download v1.20

Important: After installing the firmware, it is essential that A20-Minis are unpaired, then re-paired with the A20-Nexus. 

Note: To ensure best performance, always run the latest version of A20-Nexus with the latest version of A20-Mini. 

New

• Added AutoAssign which automatically scans the current tuning band for clean frequencies and assigns them to multiple channels. The clean frequencies are automatically pushed to NexLinked transmitters. 
• Support for the 4-channel expansion license. Purchase one license to expand the A20-Nexus to 12 channels and two licenses to expand to 16 channels. 
• Support for rental of 1 week and 30-day 4-channel expansion licenses. Two licenses can be installed for 8-channel rental. 
• Added the ability to globally power all transmitters on or off from the TX List. 

Changed

• DC Outs are now enabled when docked to 8-series. Maximum 3W per DC Out. 
• 1RX View navigation bar in screen three now persists when a NexLink status message is displayed. 
• In the 1RX View frequency popup, "Off" changed to “RX Off” to indicate a disabled receive channel.  
• In the 1RX View RF Power button, "Off" changed to “RF Off” to indicate zero RF transmit power. 

Fixed

• General performance improvements and bug fixes for Nexus and the web app.

A20-Nexus v1.10 Firmware

Released: December 21, 2022

Download v1.10

Note: To ensure best performance, always run the latest version of A20-Mini with the latest version of A20-Remote and A20-Nexus

New 

• Added support for Dante at 96 kHz.  
• Added RF warning and overload indicators to web app.

Fixed 

• The correct tuning bands are now shown for Belgium and the Netherlands.
• RF Menu > RF History now auto-refreshes on A20-Nexus when changed from the web app. 
• A20-Nexus 1RX View > Gear menu now shows the correct A20-Mini firmware version after updating the Mini’s firmware. 
• A system date/time issue that was causing the Time Zone and Daylight Savings settings to behave incorrectly has been fixed. After applying this update, users should check and reset the A20-Nexus date and time using the Date/Time button on the System menu.

A20-Nexus v1.00 Firmware

Released: November 29, 2022

Download v1.00

Initial Release