The only difference will be the version of the firmware.
All hardware is the same.
How does one complete a firmware update? The last message in the online manual is that the feature is currently offline.
We are currently preparing a public release of the latest version of firmware. This should happen fairly quickly. However, if you're having issues with an older version of the firmware, reach out to us at firstname.lastname@example.org and we'll help you out.
When is the new firmware version going to be released?
V2.69 with optional Chorus update is tested, stable, and available at files.tonewoodamp.com