Apogee Symphony I/O Mk II firmware 0.9.B2.21

Latest firmware: 0.9.B2.21

0.9.B2.21

Last checked 12 Sep 2026

Download 0.9.B2.21 from Apogeeopens in a new tab — knowledge.apogeedigital.com

How to update the Apogee Symphony I/O Mk II

Download and install Apogee Control 2 from apogeedigital.com. Run the uninstaller first to remove previous Apogee software. After installation, if firmware does not match, run the Symphony updater app found in Applications > Utilities. Firmware can be updated via Thunderbolt, Dante (Ethernet), or Pro Tools HD card USB port depending on the installed option card. Do not update firmware on units with Pro Tools HD option cards without checking with Apogee support first.

What you need

Apogee Control 2 — the software Apogee uses to load firmware onto the Apogee Symphony I/O Mk II. Download links below.

Just for reference. For complete and up-to-date instructions, always refer to the manufacturer's official firmware page.

Drivers & software for the Apogee Symphony I/O Mk II

The Apogee Symphony I/O Mk II is updated with Apogee Control 2, published by Apogee.

Download Apogee Control 2 from Apogeeopens in a new tab — knowledge.apogeedigital.com

Get Apogee Symphony I/O Mk II firmware alerts

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Apogee Symphony I/O Mk II firmware update history

Changelogs summarised from the manufacturer's release notes.

0.9.B2.21 Release notesopens in a new tab — knowledge.apogeedigital.com

Apogee Symphony I/O Mk II manual & official pages

Apogee Symphony I/O Mk II user manual (PDF)opens in a new tab — apogeedigital.com
Apogee Symphony I/O Mk II on apogeedigital.comopens in a new tab — apogeedigital.com
Download Apogee Symphony I/O Mk II firmware from Apogeeopens in a new tab — knowledge.apogeedigital.com

Apogee Symphony I/O Mk II firmware FAQ

What is the latest firmware for the Apogee Symphony I/O Mk II?

The latest firmware for the Apogee Symphony I/O Mk II is version 0.9.B2.21. FW//RADAR last checked Apogee's official page on 12 Sep 2026.

How do I update the Apogee Symphony I/O Mk II?

Download and install Apogee Control 2 from apogeedigital.com. Run the uninstaller first to remove previous Apogee software. Full instructions on Apogee's official firmware page.

What software do I need to update the Apogee Symphony I/O Mk II?

You need Apogee Control 2, available from Apogee's support site.

Where can I download Apogee Symphony I/O Mk II firmware and drivers?

Directly from Apogee's official firmware page — FW//RADAR links to the source and never hosts firmware files. Official firmware page →

Where can I find the Apogee Symphony I/O Mk II manual?

The official Apogee user manual is a PDF hosted on apogeedigital.com. Apogee Symphony I/O Mk II user manual (PDF) →