Universal Audio UAFX Astra Modulation Pedal

Astra Modulation Machine

A Trio of Timeless Modulation Effects

Astra Modulation Machine is a complete sonic workstation. From spacey studio flanger tones of the 1970’s, to gritty bucket-brigade chorus, and luscious opto tube tremolo, Astra puts three perfectly-emulated modulation sounds at your feet. Chorus Brigade, Flanger DBLR, and Trem 65 settings — with secondary modes for Vibrato, Doubling, and more — combine for an abundance of tasteful tweaking.

Three egendary modulation effects:

Chorus Brigade

Based on the classic CE-1, the Chorus Brigade tone emulates every inch of this legendary pedal, expertly capturing its legendary bucket-brigade circuit.

Flanger/DBLR

Perfectly emulates the prized MXR studio flanger’s colorful, almost lo-fi-sounding "bucket-brigade" circuit — offering subtle thickening to whacked-out sci-fi effects.

Trem 65

Captures the balanced, warm tones of classic Fender blackface opto tube tremolo (called "Vibrato" on the amp).

Bonus X90 Phaser & Dharma Trem 61 effects
Based on the classic MXR "script" and "block" Phase 90 effects, plus a unique "Dharma" Dynamic Harmonic Tremolo tone — available free at pedal registration.

Live / Preset modes

True / Buffered Bypass

UAFX Pedals - Key Features

Powerful UAFX engine delivers the most sonically authentic classic effects ever produced by a pedal with simple Preset/Live modes with additional downloadable effects from the world-renowned UAD algorithm team and timeless UA analog design and robust craftsmanship — built to last decades. 

Flagship, No-Compromise Effects

- 3 Legendary Effects per Pedal

- Landmark reverb, delay, and modulation pedals featuring powerful dual- processor UAFX engine with sonic authenticity beyond all other stompboxes

- Unmatched sonic authenticity

- Classic Design & UA Build Quality

- Stereo / Dual Mono Operation

- True or buffered bypass* with trails (Golden, Starlight), silent switching

- Simple Live and Preset modes for instant recall of your favorite sound

-Analog dry through (Golden, Starlight), stereo/dual mono operation

- Optional Preamp coloration on select effects

- Preset Mode recalls Stored Setting

- Bonus effect(s) upon product registration

- Classic UA analog design and robust craftsmanship, built to last decades

Rear Panel Connections

- Discrete Stereo / Dual Mono connections with 
auto-detection of inputs/outputs

- Connection for 9V 400mA power supply 
(sold separately)

- USB connection for registration / updates