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PWM Pressure
Pulse-width movement tuned for animated bass, hoover leads, and cutting harmonic motion.
Classic circuits / modern engines
Hoovr Core.Alpha Juno 2, faithfully modeled.
A DCO synthesizer emulation of the Roland Alpha Juno 2 — the instrument behind the original hoover sound — covering the Alpha Juno 1 and MKS-50 by extension. Built around hoover pressure, PWM motion, and chorus-driven bite.
VST3CLAPAULV2
First builds: Windows, VST3 and CLAP. Dimmed formats are planned, not released.
01Hoovr Core
In development
The Roland Alpha Juno 2, modeled from the circuit out.
Hoovr Core starts with the sounds producers actually chase: the hoover lead that defined rave and hardcore, biting PWM movement, chorus width, and the immediate response of a classic DCO instrument. Because the Alpha Juno 1, the Alpha Juno 2 and the rack-mount MKS-50 share the same voice architecture, one engine covers all three. The goal is not nostalgia as decoration. The goal is behavior, pressure, and feel.
02The hoover sound
Why this synth
It started with one factory preset.
The hoover is not a sound designer's invention. It is "What The?", a factory preset that shipped inside the Roland Alpha Juno — a stacked, detuned PWM sawtooth with a hard filter sweep, sitting on the same voice architecture as the Alpha Juno 1 and the MKS-50. Producers found it, pitched it, mangled it, and built entire genres on top of it.
That preset and the patches derived from it ran through rave, hardcore, gabber, drum and bass, and the early Prodigy records. Thirty years later people are still chasing it — and still settling for sample packs, because getting the real thing means finding the hardware.
Hoovr Core exists for exactly that reason. The goal is not "inspired by". The goal is that "What The?" and everything derived from it sound the way they sound on the original instrument.
03Blind comparison
Can you tell the difference?
The blind A/B test will compare recordings of an original Alpha Juno against Hoovr Core. No hints, no waveform tells, no marketing safety net. Just ears.
Audio slots prepared. Final clips will be added when the model is ready.
04Modeled for character
Not a generic analog layer.
Hoovr Core is being shaped around specific behavior: pulse-width response, chorus movement, DCO stability, and the way classic control ranges push a patch into the right place quickly.
Chorus Weight
A focused chorus character designed around width, bite, smear, and the unmistakable push of classic hardware.
DCO Response
Architecture-first modeling that cares about response, ranges, and feel before decoration.
Performance Feel
A modern instrument surface for fast patching, preset movement, automation, and repeatable production work.
05Interface
Signal architecture
Classic signal flow, modern control surface.
The interface keeps the instrument immediate: oscillator, filter, envelope, chorus, performance, and patch movement stay visible at a glance, so sound design stays tactile, fast, and readable.
FormatsVST3 / CLAP first, AU + LV2 planned
PlatformsWindows first, macOS + Linux planned
FocusDCO pressure + chorus width
StatusIn development
06Formats
Built for the sessions people actually run.
The first Hoovr Core builds target Windows in VST3 and CLAP. macOS, Linux, AU and LV2 are on the roadmap and are shown dimmed below until they ship.
Platforms
WindowsmacOSLinuxFormats
VST3CLAPAULV2Status
In developmentEarly access listAudio tests pending07Beyond Core
The core model is only the beginning.
Some engines should be announced. Others should be heard about before they are seen.
08Plasma Circuit
Independent audio software, built with pressure and patience.
Plasma Circuit is a boutique audio software studio focused on meticulous recreations and modern extensions of classic electronic instruments. The first release is narrow by design: get the Alpha Juno core right, then let the engine grow. Questions and press enquiries: info@plasmacircuit.com.
09Early access
Be first to hear the release build.
Join for launch notice, possible intro discounts, and the A/B test when the final clips are ready.