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.
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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
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