Universal Audio adds USB MIDI control to 14 UAFX pedals with 2.0 firmware

November 12, 2025 · 1 sources

Universal Audio has updated all 14 of its dual-footswitch UAFX pedals with MIDI capabilities through the UAFX 2.0 firmware, as reported by Morningstar on November 12, 2025. The update lets a MIDI foot controller recall presets and adjust effect parameters on the pedals¹.

UAFX pedals receive MIDI through their USB device ports, so a USB host port is needed to communicate with them. Morningstar's PRO controllers have USB host ports for direct connection, and a USB hub can be added to the MC8 PRO's host port to control multiple UAFX pedals¹. The update covers models including the Lion '68, Dream '65, Del-Verb, Ruby and Starlight¹.

The pedals fall into two groups. Only pedals with preset footswitches can store presets and recall them with Program Change messages; pedals without preset capability accept only Control Change messages to control effect parameters¹. Beyond presets, users can control nearly every effect parameter, including MIDI Clock for time-based effects. Controllable parameters and their CC numbers are listed in the UAFX Control app and the pedal manuals¹. Morningstar has also added all MIDI-controllable parameters and functions to its MIDI Dictionary for UAFX pedals¹.

Universal Audio has published its own guide to UAFX 2.0 USB MIDI. Morningstar notes that the UAFX Control app should be up to date alongside the pedal firmware¹.