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UA - Astra Modulation Machine

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UA - Astra Modulation Machine

UA - Astra Modulation Machine back

Universal Audio

Universal Audio – Astra Modulation Machine

$569.00

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The Pinnacle of Classic Chorus, Flanging/Doubling, and Tube Tremolo Effects.

Taking you deep down the rabbit hole of classic analog modulation, 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.

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

Availability	in Montreal
Brand	Universal Audio

In stock

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SKU: UA-GPMASTRA Categories: Miscellaneous, Modulation, Promo Tag: Universal Audio

Description

With the Universal Audio ASTRA MODULATION MACHINE, 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

TAKE A LISTEN

Chorus Brigade: Iconic Japanese Modulation

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

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"

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.

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Dual Stereo Modulation Engines for Endless Creativity

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.

A State-of-the-Art Stompbox

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.

About Universal Audio

ABOUT Universal Audio

Pioneering audio recording for more than 60 years.

Universal Audio was founded in 1958 by Bill Putnam Sr. Universal Audio has been synonymous with innovative recording products since its inception. A favorite engineer of Frank Sinatra, Nat King Cole, Ray Charles and more. The late Bill Putnam Sr. was a passionate innovator who is widely regarded as the father of modern recording — with many of his legendary studio and equipment designs still in use today.

Specifically, Putnam was the inventor of the modern recording console, the multi-band audio equalizer, and the vocal booth. He was the first engineer to use artificial reverberation in commercial recording. Alongside his friend Les Paul, Putnam was also involved in the early development of stereophonic recording.

Putnam, a natural entrepreneur, started three audio product companies during his long career: Universal Audio, Studio Electronics, and UREI. All three companies built equipment that remains widely used decades after their introduction, including the ubiquitous LA-2A and 1176 compressors, and the 610 tube recording console. The 610 console in particular stands as one of the most beloved designs in audio history, used to record everyone from Sinatra to the Beach Boys to Van Halen’s eponymous debut.

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Shipping

Livraison Nantel

Livraison Nantel

FREE SHIPPING ON MOST PRODUCTS OVER $100

We offer free shipping on most products of $ 100.00 and over with a dimensional weight under 35 pounds.

For orders over $100 with no weight overload or fuel overload, after checking the best delivery options, we could refund you part of shipping fees.

Free shipping is not valid for remote regions such as Nunavut, Yukon, Northwest Territories and the non-metropolitan regions and all other areas driven by our courier. (Purolator / FedEx / UPS). All items will be shipped uninsured via Purolator or Canada Post. Insurance can be added, please just call us to know the details. It is also possible to deliver order by bus for Quebec resident. Please contact us to get more information about this option.

In store pick up

To pick up your order in store, please write it down in the additional information. Specify the store of your choice. (Laval or Montreal)
When your order is ready, we will notify you.
You can then come to the selected store to pick up your order by presenting the credit card used for the transaction and a valid Photo ID card showing the billing address that appears on your order.

Specifications

UA ASTRA
Power requirements	Isolated 9VDC, center-negative, 400mA minimum
(power supply sold separately)	Isolated 9VDC, center-negative, 400mA minimum
Inputs	2 x ¼” unbalanced TS
Inputs	(input 2 for stereo connections)
Outputs	2 x ¼” unbalanced TS
Outputs	(output 2 for stereo connections)
Bypass modes	True bypass via mechanical relays or buffered bypass
(switchable within UAFX Control mobile app)	True bypass via mechanical relays or buffered bypass
Input impedance	500 Kilohms (Mono In)
Input impedance	1 Megohms (Stereo In)
Output impedance	500 Ohms
Maximum input level	12.2 dBu
Maximum output level	12.1 dBu
Frequency response	20 Hz to 20 kHz, ±3 dB
USB Type-C	For registration and firmware updates via computer
Wireless technology	Bluetooth v5
Dimensions	Height: 2.56 inches, 6.5 cm
(with knobs and protrusions)	Width: 3.62 inches, 9.2 cm
	Depth: 5.55 inches, 14.1 cm
Weight (unboxed)	1.24 lbs
Weight (unboxed)	0.567 kg