Updating device firmware

When the PC running the Sennheiser Control Cockpit software is connected to the Internet, the most recent firmware versions for all update-able devices is automatically made available.

In order to use all the latest features of the software and in order for all devices to work properly, we strongly recommend updating the firmware of all devices to the latest version (see product-specific firmware update instructions in the following chapters).
Depending on the functional scope of the implemented device firmware and the supplied software, there are two different protocols that can be used:
  • Secure API (SSCv2): New protocol with a high security standard for Sennheiser devices that are delivered with a password.
  • Legacy API (SSCv1): Unsecure legacy protocol based on UDP/TCP

Firmware Update Service

  • The latest firmware versions are available via the internal update server of the Sennheiser Control Cockpit. Alternatively, they can be downloaded from the respective product pages.
  • If you are running a closed network, you have to download the firmware from the Internet. In order to import the downloaded firmware into the Sennheiser Control Cockpit software, please navigate to Devices > 'your device' > Device > Fw Information > Select firmware > Upload.
Please make sure that your firewall is configured correctly before you start the update. After the update, select the correct 3rd party protocol to ensure that your 3rd party integrations are not left broken. We recommend to update all 3rd party modules and use the new secure protocol.

Sound Control Protocol v2 (SSCv2)

Sennheiser 3rd party API protocol

The latest Sennheiser 3rd party API protocol enables configuration and monitoring of devices via encrypted REST API calls, allowing the user to control the device via HTTPS commands and integrate the products into any IT environment. It offers end-to-end security, utilizing HTTPS (TLS 1.3).

In order to activate the secure SSCv2 protocol:
  • update your firmware, which supports SSCv2 (see Updating device firmware) and
  • enable the secure SSCv2 protocol in the control software under: Devices > your device > Access > 3rd Party Access > Edit > Secure.

In addition to encryption, SSCv2 also provides an authentication scheme. By using HTTP basic authentication, a compatible and well-established mechanism of username and password is employed to ensure that no unauthorized changes are made to the device’s settings and that no data is read from it.

Password protection

We strongly recommend that you switch to the new and secure protocol, which is supported in the latest 3rd party modules provided by Sennheiser. Nevertheless, to ensure that your room is fully functional at all times, you can use the unencrypted protocol (“Claim device”):
  • If the device is in a factory default state and the original password is still assigned, it will be automatically detected and applied.
  • If the device was previously claimed by another Control Cockpit instance, the previously set password must be entered. If you cannot remember the previously set password, please perform a hardware reset of the device. After the reset, the default password will be automatically applied.
The feature is supported by the following Sennheiser devices which come equipped with a device configuration password:
Detailed information

Sound Control Protocol v1 (SSCv1)

The legacy protocol (Sennheiser Sound Control protocol v1) can still be utilized by the user, and is provided for interoperability reasons.

We strongly recommend that you switch to the new and secure protocol, which is supported in the latest 3rd party modules provided by Sennheiser. Nevertheless, to ensure that your room is fully functional at all times, you can use the unencrypted protocol.
The following Sennheiser devices are supported:
  • SL Rack Receiver
  • CHG 4N - network-enabled charger
  • CHG 2N - 2 bay network charger
  • Multi-channel receiver (SL MCR2 & MCR4)
  • EW-DX EM 2 rack receiver (EW-DX EM 2)
  • EW-DX EM 2 rack receiver Dante (EW-DX EM 2 Dante)
  • EW-DX EM 4 rack receiver Dante (EW-DX EM 4 Dante)
  • CHG70N - 2 bay network charger
  • TeamConnect Ceiling 2 (TCC 2)

For more information on SSCv1, please refer to the website 3rd Party API for Sennheiser Products.