The UAFX Astra Modulation Machine brings together three legendary vintage effects in one meticulously crafted stompbox, engineered by Universal Audio's acclaimed development team. This powerful pedal features dual-processor architecture that authentically recreates the most sought-after Chorus, Vibrato, Flanger, and Tremolo sounds ever housed in a single unit.
At its core, the Astra offers three distinct vintage modulation voices: Chorus Brigade provides classic ‘70s analog bucket brigade chorus with an additional Vibrato mode, while Flanger/DBLR captures those spacey studio flanger and doubler tones that defined legendary rack effects units. The Trem 65 mode perfectly emulates the luscious opto tube tremolo derived from iconic blackface amplifiers of the mid-1960’s.
Built to withstand decades of use, this beautifully-crafted pedal puts everything from gritty bucket-brigade chorus to studio-grade flanger effects right at your feet. Registration also unlocks bonus effects including the free Phaser X90 and Dharma Trem 61, adding even more sonic possibilities to your pedalboard arsenal.
- Flagship modulation pedal with powerful dual-processor UAFX engine
- Three timeless modulation effects, with secondary modes and settings
- Simple Live/Preset modes for instant recall of your favourite sound
- Additional downloadable effects by the world-renowned UAD algorithm team
- True or buffered bypass (available via UAFX Control software, coming in 2021)
- Silent switching
- Classic UA analog design and craftsmanship, built to last decades
- Power requirements: Isolated 9VDC, centre-negative, 400mA minimum
- Power supply not included
- Inputs: 2 x ¼” TS (input 2 for stereo connections)
- Outputs: 2 x ¼” TS (output 2 for stereo connections)
- USB Type-C for updates via computer



