JUPITER-4 by Roland analog synth plugin interface

JUPITER-4: Analog-Modeling Synth Plugin by Roland

Rated 5.0/5 on Plugin Boutique (5 ratings)

JUPITER-4 is an analog-modeling software synthesizer from Roland that recreates the first synthesizer to carry the JUPITER name, introduced in 1978. It runs as a VST3, AU or AAX plugin on Windows and macOS.

VST2AUAAXWindowsmacOS64-bit

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01Overview

Roland's JUPITER-4 brings back the first polyphonic analog synth in the JUPITER line as a software instrument. Roland uses its Analog Circuit Behavior (ACB) modeling to reproduce the original hardware's circuit behavior, including its character and instabilities. Beyond the original design, the plugin adds double the polyphony, extra parameters, an arpeggiator and onboard effects, and it can also work with Roland's SYSTEM-8 hardware synth.

Best for

Synth pop leads
New wave pads
Vintage polysynth basses
Live SYSTEM-8 performance
Tempo-synced arpeggios

Developer: Roland
Category: Synths
Store: Plugin Boutique

02Key features

What you get

Analog circuit modeling using Roland's enhanced ACB technology
Detailed interface modeled on the vintage hardware
Polyphony selectable from two to eight notes
Circuit Mod macro for real-time tonal changes
Condition parameter simulates the effects of aging
Ensemble chorus plus reverb, flanger, delay and overdrive
Tempo-synced LFO, arpeggiator and effects
PLUG-OUT compatibility with the SYSTEM-8 hardware synth

03In depth

Sound and circuit modeling in the JUPITER-4

The original JUPITER-4 hardware had a single VCO, and Roland says its oscillator, filter, LFO section and other components work together to produce a thick, warm tone. The plugin is built on Roland's ACB process, which analyzes original hardware units, circuit diagrams and historical data to recreate the instrument's behavior.

The built-in Ensemble chorus is a central part of the sound. Roland also says the plugin adds phaser, flanger, overdrive, reverb and delay, so you can shape the tone further without leaving the instrument.

Workflow, controls and the Circuit Mod function

The Circuit Mod function lets you sweep through multiple internal trim settings with one macro control. Paired with the Condition parameter, which simulates aging, it covers everything from a factory-fresh sound to a worn-out vintage synth. Circuit Mod can be adjusted in real time.

The LFO, arpeggiator and effects sync to tempo. The interface is freely resizable, and polyphony is selectable from two to eight notes. With PLUG-OUT, a SYSTEM-8 can be used as a standalone eight-voice JUPITER-4 for studio or stage.

04Specs

Will it run?

Formats, systems and requirements as listed by Plugin Boutique. Missing details are left out, not guessed.

Developer	Roland
Type	Plugin
Category	Synth
Formats	VST2, AU, AAX
Operating systems	Windows, macOS
Architecture	64-bit

05FAQ

Questions, answered

What is the JUPITER-4 plugin?

JUPITER-4 is Roland's software recreation of the first synthesizer to carry the JUPITER name, introduced in 1978. It is built with Roland's ACB modeling and includes features the original did not have, such as extra polyphony and effects.

Which formats and operating systems does JUPITER-4 support?

JUPITER-4 is available in VST3, AU and AAX formats. It runs on Windows 10 (64-bit) or Windows 11, and on macOS 11 (Big Sur) or later, with native support for Apple silicon.

What do I need to use JUPITER-4?

You need a compatible DAW or plugin host that supports VST, AU or AAX. An internet connection is required to install and activate the Roland Cloud software.

Can JUPITER-4 work with Roland hardware?

Yes. JUPITER-4 integrates with the SYSTEM-8 keyboard, which can change its panel to match the plugin or act as a standalone eight-voice JUPITER-4 through PLUG-OUT.