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Symphony I/O Release 5.5 System Requirements

This final release for Symphony I/O also supports the Symphony64 PCIe card and Symphony64|Thunderbridge.  Legacy devices using the X-Symphony option card have not been tested but appear to work with this release.

Symphony I/O Release 5.5 Requirements

   Click here to download Symphony I/O Release 5.5

What's New in this Release:

  • Support for the following
      • Symphony I/O (original Mk1)
      • Symphony64 PCIe card
      • Symphony64|Thunderbridge
      • Legacy interface support with Symphony64 PCIe or Thunderbridge: AD-16x, DA-16x, Rosetta 800, Rosetta 200
  • System Requirements: macOS 11 or later - Apple Silicon and Intel Processors

*This installer is not compatible with macOS 10.15 or lower. User previous Release installers for older macOS versions.

Symphony Audio Interface Mode

Requirements to connect Symphony I/O to Apogee Symphony 64 Thunderbridge or PCIe cards:

  • Apple Mac computer with built in Thunderbolt connector
  • macOS 11.0 or higher
  • 4 GB minimum RAM, 8 GB or higher recommended

PTHD (Pro Tools HD) Audio Interface Mode

A Symphony I/O based Pro Tools system consists of two independent computer connections:

  • audio (to a Pro Tools HD PCI card)

  • and software control (via USB to an Intel Mac running Maestro 2).

In the case where PCI cards are installed in a PowerPC Mac or Windows computer, it’s possible to run Maestro from a separate Intel Mac, such as Mac Mini or MacBook.

NOTE: Running Symphony I/O in Pro Tools HD mode on a PowerPC Mac requires an older firmware version. Only the 8x8, 16 Analog In/Digital Out, and 16 Digital In/Analog Out modules are compatible with versions of Pro Tools HD older than version 9. The 16x16 Analog In/Out and 2x6 modules are only compatible with Pro Tools HD versions 9 and above.

Requirements to connect Symphony I/O to Avid Pro Tools PCI Cards:

  • Avid Pro Tools HDX, HD Native or HD Core/Accel/Process card installed in a computer in accordance with the Pro Tools HD Compatibility Grids, available at www.avid.com
  • Pro Tools 8.1 (requires older Symphony I/O firmware), 9.0 or greater, 10.0 or greater, 11.0 or greater

Requirements to run Apogee Maestro software included with Release v5.5, to control Symphony I/O via USB:

  • macOS 11.0 or higher
  • 4 GB minimum RAM, 8 GB or higher recommended

USB Audio Audio Interface Mode

Requirements to connect Symphony I/O as a USB audio interface:

  • macOS 11.0 or higher
  • 4 GB minimum RAM, 8 GB or higher recommended

Standalone Audio Interface Mode

In Standalone audio interface mode, all audio connections are made using the standard analog and digital i/o found on the I/O Module(s). For software control, connect Symphony I/O's USB port to a Mac.

Requirements to run Apogee Maestro software included with Release v5.5, to control Symphony I/O via USB:

  • macOS 11.0 or higher
  • 4 GB minimum RAM, 8 GB or higher recommended

Note on Firmware

  • Nothing has been changed since the previous Symphony Release, other than support for macOS 11.0 and M-series Apple Silicon systems.
  • If your Symphony I/O is already on the latest firmware, there is no firmware update required.
    The latest firmware is XMOS 1.6.48 - 
  • If your Symphony I/O is using older firmware, you will need to download the Symphony I/O Firmware Updater from the previous Release 5.4c Installer package and use an Mac running macOS 10.10.5 or earlier (10.6.8 - 10.9 recommended) to update the firmware, as the firmware updater app is not compatible with any version of macOS newer than 10.10.5.

Known Issues

  1. I/O level controls for Symphony I/O do not work from Audio MIDI Setup, System Preferences Sound, or the Keyboard Volume Control.
  2. Clock Source menu no longer available in Audio MIDI Setup.
  3. GUI graphical anomalies in Maestro 2 software