Thank you for registering!

Please click on the appropriate download link below.

NOTE: macOS 10.15 Catalina supported in USB AIM only. Thunderbridge and Symphony64 PCIe not currently supported – Read More

Symphony System Release 5.4c Installer

  • Compatible with macOS 10.15 Catalina, 10.14 Mojave
  • Includes Apple’s Notarization requirements required for macOS 10.15 Catalina. All other features are the same as previous 2.5 version.

IMPORTANT NOTE ON INSTALLATION

1) To properly install this update, you must run this installer TWICE. The first time you install you are authorizing the kernel extension on your Mac (see #2). When the computer restarts after the first install, run the installer again to complete the installation of the update. 

2) *macOS 10.15, 10.14 & 10.13 – Please make sure that after installing you have done this important Security step and Restarted the computer. This will allow the Apogee Driver to run so your device will be recognized properly – Read More

Please Note: Symphony I/O is fully compatible with macOS 10.14, 10.13, 10.12. However the firmware can only be updated using macOS 10.10 or lower (10.6.8 – 10.9 preferred). You may use the Firmware Updater from the v5.4 download on the older OS to execute the update.


Symphony System Release 5.4 Installer

  • macOS 10.14 Mojave, 10.13 High Sierra, 10.12 Sierra

IMPORTANT NOTE ON INSTALLATION

*macOS 10.15, 10.14 & 10.13 – Please make sure that after installing you have done this important Security step and Restarted the computer. This will allow the Apogee Driver to run so your device will be recognized properly – Read More

Please Note: Symphony I/O is fully compatible with macOS 10.14, 10.13, 10.12. However the firmware can only be updated using macOS 10.10 or lower (10.6.8 – 10.9 preferred). You may use the Firmware Updater from the v5.4 download on the older OS to execute the update.

Click for earlier Symphony Installer Releases

Symphony System Release 5 Installer – Mac OS X 10.8.5
Mac OS X 10.8.5 only
New Features:
Up to 3 switchable speaker sets can now be controlled via Maestro Software
Dim functionality for Main Speaker and Headphone Outputs
Sum to Mono functionality for Main Speaker and Headphone Outputs

Symphony System Release 4.8 Installer – OS X 10.9 Maverick
Mac OS X 10.9 only
Fixes issue with some units having jumpy Output encoder knob

Symphony System Release 4.8 Installer – OS X 10.8 and lower
Fixes issue with some units having jumpy Output encoder knob

Symphony System Release 4.6 Installer – OS X 10.9 Mavericks

Symphony System Release 4.6 Installer – OS X 10.7.5 / 10.8.5

Symphony System Release 4.4 installer
Compatible with Mac OS X 10.6.8, 10.7.4, 10.7.5, 10.8.2 and later
Intended for all Symphony I/O users
Required for Symphony I/O systems equipped with the 2×6 Analog Module
Supports X-Series and Rosetta Series interfaces
Known Issue: The firmware updater is not compatible with USB 3 ports on recently introduced Macs.
Workaround – connect Symphony I/Oʼs USB port to a USB 2 hub (including a Mac keyboard), then connect the hub to the USB 3 port
When updating firmware with OS X Mountain Lion, the OS must be updated to version 10.8.2
**Please see the Release Notes for detailed information about who should update, new features and known issues**