In rare cases, Ensemble Thunderbolt will generate short pops or clicks through the analog outputs. This would occur even if there are no inputs connected, the unit is hardware reset and on it’s internal clock, and is disconnected from the computer.

This is resolved with a firmware update that is part of the Ensemble Thunderbolt July 2016 software. Download it here: Download

  • Run the Software Installer.pkg that is inside this downloaded file. It will require your computer to restart.
  • Connect Ensemble via Thunderbolt cable to your Mac computer. You will be prompted to update the firmware.
  • If you are not prompted, the Ensemble Thunderbolt Firmware Updater can be manually run from your Mac’s Applications > Utilities folder.

When the firmware has completed it’s update, verify the version by opening the Apogee Maestro 2 software. Go to the Apogee Maestro 2 > About Apogee Maestro 2 menu. A properly updated Ensemble Thunderbolt will have Firmware and FPGA 0.32 or higher.