Sound Devices 8-Series firmware v9.50

Sound Devices · Released Dec 12, 2023 · First seen Jul 20, 2026

v9.50 is not the latest firmware for the Sound Devices 8-Series: the current version is v11.01 (September 24, 2025). Go to v11.01

What's in this update

New

Added Channel Name Manager for quick channel naming. In a Channel Screen, hold PFL for > 1sec to enter the naming window, then select Name.

Added Stop Hold Time option in the Record/Play menu. Determines how long Stop must be held before the stop command is actioned in record or playback mode.

Added support for the Astral TX/Astral ARX2 VHF bands via SL-2.

Enabled the SL-2's 169-235 MHz (VHF) filter band option.

Added Superslot support for the Lectrosonics DSR receiver and support for the new AES backplate for the Lectrosonics SRc.

Added Unislot Audio Mode in the SL-2 Options menu. Enables the manual selection of analog or digital audio output from a Unislot slot receiver. This allows for receivers that support digital audio but that are not supported in 'SuperSlot' mode.

Changes

Added audio muting when running a DSR4 RF scan via the SL-2.

Changed ‘Jam Astral Mini' wording to ‘Jam Astral Transmitter’ in the Timecode menu.

Removed "Analog Audio Select" menu from the MCR54 'Options'​ menu on the 8-Series when MCR54 firmware v2.3.0 or later is detected as this is no longer supported by the receiver.

Fixed

Setting DSR4 Block 470 vs 19 via SL-2 now works correctly.

Eliminated static noise when starting RF Scan on Lectrosonics DSR4.

SL-2 AES 3&4 inputs now pass audio when no slots are filled.

Rare condition where the ‘Problem with SSD during play’ warning would be displayed during playback, no longer occurs.

The audio output selection and compander menu issues that were introduced with MCR54 FW update v2.3.0 are now resolved.

MCR54 group scan issue where the first frequency on the group scan page had a wrong dBuV value of '–' is now fixed.

MS Link routing to Buses LR not restored properly after setting factory defaults.

Incrementing Scene from ‘65535’ no longer resets Scene to ‘00000’.

Output Mute indicator does not show mute status correctly after unlinking.

With MCU Controllers, mapping Next Take Scene Name would incorrectly bring up Current Take Scene Name.

Output AutoMutes could get out of sync when 8-series mute was toggled off then on.

Disappearing Automix LCD indicators no longer happen.

Occasional state where editing Scene Name did not reset the Take Number to 01 is now fixed.

Scene Name changes to recorded takes not being applied is now fixed.

8-Series v9.31 Firmware Released: April 19, 2023

Note: To ensure best performance, always run the latest version of 8-Series firmware with the latest version of SD-Remote.

Fixed

Audible clicks and noise with some superslot receiver /slot combinations in an SL-2 no longer occur.

8-Series v9.30 Firmware Released: April 06, 2023

Note: To ensure best performance, always run the latest version of 8-Series firmware with the latest version of SD-Remote.

New

Lectrosonics DSR4 full SuperSlot control via SL-2. Ensure the DSR4 is running v1.09 firmware or higher.

Added Mute/Arm Grouping allowing mutes and arms to be independently grouped from trim and fader control. Select in the Channel setup>Channel Grouping menu.

New System>Headphone Volume Lock menu allowing users to lock/unlock the headphone vo​lume control.

Changes

Default CL-16 U4 button changed to AutoMixer

Fixed

To prevent a lockup, the Controllers > Mapping menu now ignores the 'Fav'/Reset toggle when bringing up the popup list to change the mapped button’s action.

Full SD Cards no longer show as ">99h" remaining in the File List.

The CL-16 Scene Increment Button no longer stays incorrectly illuminated.

The CL-16 Bus Sends on Faders mode middle row encoders now adjust send level for channels 17-32.

All CL-16 Bus Mute Indicators now persist when exiting then re-entering Bus Mode.

BWF files are no longer intermittently being recorded as RF64 files.

8-Series v9.20 Firmware Released: February 07, 2023

Note: To ensure best performance, always run the latest version of 8-Series firmware with the latest version of SD-Remote.

New

Added auto-resume file upload capability.

Now if the connection to frame.io is lost while a file is uploading, when the connection is automatically re-established, the file will continue to upload from where it left off rather than starting again.

This saves time and prevents duplicate file entries in frame.io

Support for 4 channels of digital audio per slot from the Lectrosonics DSR4 to 8-series via SL-2. Note: Superslot control not supported in this firmware release.

Added option to gray out meters for CL-16 disarmed ISO and Bus tracks.

Support for the SL-MixFace controller.

Changed

Solo Follows Select On/Off now affects CL-16 as well as 3rd Party MCU controllers.

Fixed

Output delay is now applied to both A1 and A2 outputs of Scorpio’s 10-pin A Output.

CL-16 menu button no longer stays illuminated after using it in conjunction with pressing knobs for muting channels, buses, and outputs.

Add fixes to support new Waves Fit hardware and firmware v2.03.

Fixed rare issue where slot receivers would not power up in an SL-2.

Channel 1 and 3 labels are now centered on the LR,1-3 horizontal meter screen.

Eliminated a rare lockup that could result from playing back monophonic files.

Occasional loud pops on headphones when powering on or off have been eliminated.

Virtual channel trim and fader values are now saved on power down.

8-Series v9.10 Firmware Released: November 29, 2022

Note: To ensure best performance, always run the latest version of 8-Series firmware with the latest version of SD-Remote.

New

Added support for the Astral ARX16 8-, 12-,16- channel digital receiver including channel source selection, GainForward trim gain range, wireless channel names, and more.

Fixed

The CL-16 Com 2 button is now mapped by default to the 888’s Com 2 Send function.

8-Series Firmware 9.01 Released: October 12, 2022

Fixed

  • Pan settings are now recalled correctly after power cycling.
  • Fixed condition where the CL-16 locks up when channels or buses clip with metering set to VU meter ballistics.

8-Series Firmware 9.00 Released: O

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