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UAFX Astra Modulation Machine Stereo Effects Pedal

Stereo modulation pedal with Chorus, Flanger, and Tremolo effects, true or buffered bypass, preset modes, additional downloadable sounds, and more.
€385.00 incl. VAT contact_support
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format_quote Engineered and developed by the acclaimed team at Universal Audio, the UAFX Astra Modulation Machine boasts powerful dual-processor architecture for the most sonically authentic classic Chorus, Vibrato, Flanger, and Tremolo effects ever available in a stompbox.

Three Timeless Modulation Effects

- Chorus Brigade: Classic ‘70s analog bucket brigade chorus with additional Vibrato mode.

- Flanger/DBLR: Studio flanger/doubler tones modeling legendary rack effects units.

- Trem 65: Perfectly-emulated opto tube tremolo derived from iconic blackface amps of the mid-1960’s.

- Bonus Effects: Free Phaser X90 and Dharma Trem 61, downloadable at registration.
format_quote US parcels are shipped fully insured with DHLExpress and they usually arrive within 2-3 working days from pickup day zero.

EU parcels arrive within 4-6 working days and are shipped with DPD or ACE Logistics.

You are also most welcome to pick up your order from Retrosonic Pro Audio showroom, studio and warehouse in Tallinn, Estonia.

We ship worldwide! Contact us for a personal shipping quote or if you have any questions.

VAT (Value Added Tax) is deducted if you have a company with a valid EU VAT number or if you're based outside of EU. Non-EU buyer pays all and any import duty and tax as regulated by your local customs.
Astra Modulation Machine - Key Features:

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 favorite sound
Additional downloadable effects by the world-renowned UAD algorithm team
True or buffered bypass,* silent switching
Classic UA analog design and craftsmanship, built to last decades


Power requirements: Isolated 9VDC, center-negative, 400mA minimum**
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

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