
Anthony Easton
The Astra Modulation Machine by Universal Audio is a versatile stereo modulation pedal designed to deliver authentic vintage modulation effects. It features three main modulation modes, each with three variations, providing a wide range of sonic possibilities. The modes include:
1. Chorus Brigade: This mode emulates the iconic Japanese bucket-brigade chorus/vibrato from 1976, offering rich, luxuriant chorus and wavy vibrato effects.
2. Flanger DBLR: Replicates tones found on rare rack units, delivering thickening tones and adding movement to the sound.
3. Trem 65: Based on tube-driven optical tremolos found in vintage American amps, this mode provides authentic tremolo effects ranging from subtle shimmering ripples to choppy mayhem.
The Astra Modulation Machine is built upon the powerful UAFX dual-engine processing, allowing separate stereo instances of each modulation effect. It also features studio-grade conversion, Live/Preset modes, true/buffered bypass, and silent switching for seamless integration into any rig.
The pedal offers stereo inputs and outputs, USB-C input, and Bluetooth app connectivity for firmware updates and additional downloadable effects. The Astra Modulation Machine requires a modern 400 mA isolated power supply for operation.
Overall, the Astra Modulation Machine is designed to provide musicians with a wide array of vintage modulation effects, robust craftsmanship, and the potential for future updates, making it a valuable addition to any pedalboard.
Watch the latest video demos and reviews for the Astra Modulation Machine from YouTube. Stompbx updates this every six months to reflect the most popular reviewers and guitar pedal demos for each pedal.

Below are live Reverb listings for the Universal Audio Astra Modulation Machine from Reverb. Stompbx automatically aggregates current offers to give you a quick look at available models, conditions, and prices. Perfect for comparing options and making an informed purchase.

Brand New
$395.15

Brand New
$371.78

Brand New
$399

Excellent
$209.99

Excellent
$209.99

Discover pedals with similar features or sounds to the Astra Modulation Machine. This section leverages data to suggest alternatives that complement or expand your pedalboard. Ideal for exploring related sounds or finding a pedal that matches your specific needs.

Electro-Harmonix
EH-4600 Small Clone

ThorpyFX
Pulse Doppler

Mid-Fi Electronics
Deluxe Pitch Pirate

Behringer
UV300 Ultra Vibrato

Truetone
H2O Chorus & Echo

Diamond
Vibrato

Okko
T3 Tremolo

Wren and Cuff
Sonder

Danelectro
CC-1 Cool Cat Chorus

Guyatone
PS-002 Chorus

Line 6
Space Chorus

Nobels
CH-D Stereo Digital Chorus

Foxgear
- Korus

Mid-Fi Electronics
Pitch Pirate

Ibanez
Soundtank Phaser PH5

Hotone
Skyline Choir Chorus
Check out the latest news and articles from around the pedal world.

Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton