Presenting the all new Astra Modulation Machine pedal from Universal Audio's UAFX Pedal Division.
Taking you deep down the rabbit hole of classic analog modulation, the new UAFX Astra Modulation Machine serves up the most sonically authentic bucket-brigade chorus/vibrato, studio flanger/doubler, and tube-driven tremolo effects ever placed into a single stompbox.
Built upon our powerful new UAFX dual-engine processing and unmatched levels of quirky analog realism, Astra delivers richly addictive vintage modulation, beautifully crafted to inspire you for decades.
With the Astra you can:
Let's take a look at the 3 built-in Modulation Engines in the Astra:
Chorus Brigade: Iconic Japanese Modulation
Upon its release in 1976, this legendary gray bucket-brigade stompbox changed the sound of music with its thick, luxuriant chorus and wavy vibrato. Astra's Brigade Chorus mode gives you the most complete circuit emulation of this landmark unit — including its preamp section for authentically thick, saturated sounds — letting you paint with subtle ripples of analog texture and tone, adding chewiness, shimmer, and motion to everything you play.
Flanger/Doubler: A Rackmount Studio Classic
Packed with late-'70s bucket-brigade tech, this classic rackmount studio flanger/doubler is famous for stunning whoosh effects, organic thickening, and a parade of wild sounds that go way beyond typical flanger boxes. Astra's Flanger/Dblr effect is the only end‑to‑end circuit emulation of this ultra‑rare unit, capturing its original features to a "T" and putting impossibly dense, complex flanging/doubling right at your feet.
Trem 65: Authentic Tube Amp "Shake"
Few things compare to the optical tube-driven tremolo of '60s American amplifiers. Deep, undulating, and the very essence of vibe, Trem 65 is a faithful emulation of this classic circuit. From shimmering ripples to choppy mayhem, every dynamic detail is captured in UA style, down to the complex interactions between the light source photoresistor and 12AT7 driver tube. Plus, you can explore further and create your own trem textures with variable sine and square wave settings.
The Astra features Dual Stereo Modulation Engines for Endless Creativity
Astra's UAFX engine powers separate stereo instances of each modulation effect, thanks to its unique dual‑engine processing. It's like having two bucket-brigade hardware units running simultaneously — or even dual tremolo circuits — giving you a full stereo spread of complex, jaw‑dropping textures.
The Astra is A State-of-the-Art Stompbox
With modern, high‑powered features like studio‑grade conversion, dual‑processing engines, additional downloadable effects at registration, Live/Preset modes, true/buffered bypass,* and silent switching, Astra Modulation Machine has your colors — now go forth, and paint your masterpiece.
Taking you deep down the rabbit hole of classic analog modulation, the new UAFX Astra Modulation Machine serves up the most sonically authentic bucket-brigade chorus/vibrato, studio flanger/doubler, and tube-driven tremolo effects ever placed into a single stompbox.
Built upon our powerful new UAFX dual-engine processing and unmatched levels of quirky analog realism, Astra delivers richly addictive vintage modulation, beautifully crafted to inspire you for decades.
With the Astra you can:
- Texture your tones with iconic Japanese bucket-brigade chorus/vibrato, circa 1976
- Explore the outer limits with legendary rackmount bucket‑brigade studio flanging/doubling
- Get all the heavenly goodness of 1960's tube-driven tremolo, direct from your favorite American guitar amps
- Quickly access sounds with Live/Preset modes, and play with silent switching, preamp coloration, and true/buffered bypass*
- Download additional Phaser X90 and Dharma Trem 61 effects at product registration
- Build your pedalboard around timeless UA design and robust craftsmanship, built to last decades
Let's take a look at the 3 built-in Modulation Engines in the Astra:
Chorus Brigade: Iconic Japanese Modulation
Upon its release in 1976, this legendary gray bucket-brigade stompbox changed the sound of music with its thick, luxuriant chorus and wavy vibrato. Astra's Brigade Chorus mode gives you the most complete circuit emulation of this landmark unit — including its preamp section for authentically thick, saturated sounds — letting you paint with subtle ripples of analog texture and tone, adding chewiness, shimmer, and motion to everything you play.
Flanger/Doubler: A Rackmount Studio Classic
Packed with late-'70s bucket-brigade tech, this classic rackmount studio flanger/doubler is famous for stunning whoosh effects, organic thickening, and a parade of wild sounds that go way beyond typical flanger boxes. Astra's Flanger/Dblr effect is the only end‑to‑end circuit emulation of this ultra‑rare unit, capturing its original features to a "T" and putting impossibly dense, complex flanging/doubling right at your feet.
Trem 65: Authentic Tube Amp "Shake"
Few things compare to the optical tube-driven tremolo of '60s American amplifiers. Deep, undulating, and the very essence of vibe, Trem 65 is a faithful emulation of this classic circuit. From shimmering ripples to choppy mayhem, every dynamic detail is captured in UA style, down to the complex interactions between the light source photoresistor and 12AT7 driver tube. Plus, you can explore further and create your own trem textures with variable sine and square wave settings.
The Astra features Dual Stereo Modulation Engines for Endless Creativity
Astra's UAFX engine powers separate stereo instances of each modulation effect, thanks to its unique dual‑engine processing. It's like having two bucket-brigade hardware units running simultaneously — or even dual tremolo circuits — giving you a full stereo spread of complex, jaw‑dropping textures.
The Astra is A State-of-the-Art Stompbox
With modern, high‑powered features like studio‑grade conversion, dual‑processing engines, additional downloadable effects at registration, Live/Preset modes, true/buffered bypass,* and silent switching, Astra Modulation Machine has your colors — now go forth, and paint your masterpiece.
Flagship, no-compromise stompbox offering the most authentic bucket-brigade and tube-driven tremolo effects ever captured in an effects pedal
End-to-end emulation of iconic Japanese chorus/vibrato pedal
Complete circuit capture of legendary '70s rackmount studio flanger/doubler
Stem-to-stern model of tube-driven optical tremolo from classic '60s American amps
Store and recall your favorite preset, silent switching, and true/buffered bypass*
Free Phaser X90 and Dharma Trem '61 effects, downloadable at registration
End-to-end emulation of iconic Japanese chorus/vibrato pedal
Complete circuit capture of legendary '70s rackmount studio flanger/doubler
Stem-to-stern model of tube-driven optical tremolo from classic '60s American amps
Store and recall your favorite preset, silent switching, and true/buffered bypass*
Free Phaser X90 and Dharma Trem '61 effects, downloadable at registration
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Any order placed before 3pm CDT Tuesday through Saturday is processed for shipment the same day. Orders placed Sunday-Monday will be processed for shipment the following Tuesday.
For Free Shipping items, Effects pedals and small goods items are generally shipped via USPS Priority Mail, and Guitars and Amplifiers are generally shipped via UPS Ground.
Due to our central location in the middle of the US, most orders will be delivered within 1-3 days delivery time.
Other shipping methods are available (at an additional cost), including next day air.
Please call us directly at (972)540-6420 if you have any questions regarding shipping for your order.
