UVI’s PX Apollo synth is now available for just $19, down from $79, in an exclusive deal at Audio Deluxe.
This 64-bit-only release is available for macOS and Windows in AU, AAX, VST, and VST3 formats.
PX Apollo is based on a rare prototype from the early ’70s-an early polyphonic analog synth with a 71-voice architecture.
To my ears, the PX Apollo gives a warm, phat, and old-school sound with a whole lot of character. I believe it’s an emulation of the Moog Apollo, a prototype for what would become the Polymoog, with the latter releasing in 1975.
UVI states that only two of the original prototype synthesizers exist.
The Apollo was a pioneering polyphonic design, and the subsequent Polymoog was one of the earliest commercially available polyphonic synths.
The synth was inoperable when it was sourced, but UVI went through a thorough restoration process to bring the vintage instrument back to life.
UVI sampled each key in a range of configurations, with four round-robins created per note. The end result is that the PX Apollo sound bank features 4002 samples and 153 presets.
The plugin features three oscillators, high-quality filters, envelope generators, pitch and stereo controls, pre-oscillator modulation, and arpeggiation.
To run PX Apollo, you’ll need to install the free UVI Workstation (v2.6.2 or higher).
You’ll also need a free iLok account (no dongle required) and an internet connection to activate the license.
UVI launched PX Apollo in January 2016, so the plugin is getting on a bit now. That said, with this kind of vintage emulation, I think it’s fair to say that it’s not exactly something that goes out of style.
David Luce developed the Apollo at Moog Music in the early ‘70s.
The Apollo was such a rarity that its only notable outing was Keith Emerson using it live on Emerson, Lake & Palmer’s 1974 tour in support of their Brain Salad Surgery album.
The Apollo was developed as a proof-of-concept design. The Apollo prototype would subsequently be developed into the Polymoog for commercial release.
The Polymoog had a much longer list of notable users, including Cat Stephens (Izitso album), Gary Numan (e-string sound on “Cars”), Prince (For You album), Rick Wakeman (1976-80 with Yes), and many more.
The Audio Deluxe PX Apollo sale expires on February 11, 2026, and you can track the time remaining on the product page.
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Check out the deal: PX Apollo (76% off @ AudioDeluxe until February 11th – $19)
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Last Updated on February 3, 2026 by Tomislav Zlatic.
