Sound Module


The sound and control of a JUNO-106, the size of a book

The limited-edition JU-06 is an authentic recreation of the iconic JUNO-106 synthesizer. Sometimes described as one of the last great synths of the analog era, the JUNO-106 became a favorite thanks to its warm sounds and instant sound-shaping ability. The new 4-voice JU-06 module continues this approach, with 23 parameters controllable via the front panel and that classic JUNO sound – complete with the much-loved JUNO chorus effect. There are some new additions too, including a faster LFO and continuously variable hi-pass filter (HPF). You can even slide the JU-06 into the optional K-25m keyboard unit for a self-contained, go-anywhere synth experience.

Big Sound. Small Package.

The JUNO-106 is sometimes described as one of the last great synths of the analog era, and it became a firm favorite thanks to its distinctive, warm sounds and instant sound shaping ability. The new JU-06 module has all of the sonic character of the original, with accurate reproduction of the entire sound set including the classic JUNO strings and the much-loved JUNO chorus effect.

Hands-On Control for Instant Programming

The original JUNO-106 was a great way to learn about synthesis, as each stage of the sound creation process was clearly laid out on the front panel, with lots of sliders for instant sound-shaping and experimentation. And that’s still the case with the JU-06, which features 23 knobs and sliders from the original – all inviting you to start tweaking and creating your own customized version of this legendary sound engine.

Additional Sound-Shaping Options

Like the other members of the Roland Boutique range, we also added a few subtle improvements that weren’t found on the original models. The JU-06 gains a faster LFO and a continuously variable hi-pass filter (HPF) resulting in a super-smooth sound.

Develop Your Ideas with A 16-Step Sequencer

The onboard 16-step sequencer is a sonic scratchpad that lets you try out new ideas without bringing lots of gear – it can even be used without a keyboard. And if there’s no keyboard connected, the ribbon controller lets you preview the sound, making it an ideal way to program patches quickly and easily.

Optional K-25m Keyboard Unit

The JU-06 works especially well with the K-25m, an optional 25-key velocity sensitive keyboard that takes your music making to the next level. Once docked in the keyboard, the module’s front panel adjusts to three positions for convenient access to the knobs and sliders.

Chain Mode

The original JUNO-106 was famous for big lush sounds created by its 6 oscillators/voices. The JU-06 features a chain mode that allows you to connect two JU-06 modules using the MIDI ports and create one, 8-voice synthesizer. Adding additional modules adds another 4 voices of polyphony with each module. This is especially great when controlling the JU-08 from a larger external keyboard. You can even edit the sound from the master module and control both units. Great for realtime filter sweeps and envelope adjustments.

Battery or USB Bus Power

Some of the best music is made away from the studio, so the Roland Boutique series runs on 4 x AA batteries, ready for when inspiration strikes. Alternatively, you can power the JU-06 via USB Bus power.

USB Audio Interface for Direct Recording into Your DAW

The built-in USB port also functions as a high-quality 24bit, 44.1 kHz audio interface, for a fast, simple and reliable way of recording directly to your DAW application. You can keep your favorite patches and sequencer patterns safe too, via the USB data backup function.

Maximum Polyphony
4 voices
User Memory
64 (8 patches x 8 banks)
Ribbon controllers 1, 2

LFO Section
RATE slider

DCO Section
RANGE buttons 16', 8', 4'
LFO slider
PWM slider
PWM mode switch
SQUARE, SAW buttons
SUB oscillator slider
NOISE slider

HPF Section

VCF Section
Polarity switch
ENV slider
LFO slider

VCA Section
Control signal switch
VCA level slider

ENV Section
Attack Time slider
Decay Time slider
Sustain Time slider
Release Time slider

CHORUS Section
CHORUS 1, CHORUS 2 buttons

BANK 1–8 buttons
PATCH NUMBER 1–8 buttons
MANUAL button

Power switch
Step Sequencer
16 step
16 pattern
Nominal Input Level
INPUT jack: -0 dBu
7 segments, 2 characters (LED)
PHONES jack: Stereo miniature phone type
OUTPUT jack: Stereo miniature phone type
INPUT jack: Stereo miniature phone type
MIDI (IN, OUT) connectors
USB port: MicroB type (Audio, MIDI)
Power Supply
Rechargeable Ni-MH battery (AA, HR6) x 4
Alkaline battery (AA, LR6) x 4
USB Bus power
Current Draw
500mA (USB Bus power)
Expected battery life under continuous use:
Rechargeable Ni-MH battery: Approx. 6 hours
* This can vary depending on the specifications of the batteries, capacity of the batteries, and the conditions of use.
Owner's Manual
Alkaline battery (AA, LR6) x 4
Options (sold separately)
Keyboard unit: K-25m
Size and Weight
300 mm
11-13/16 inches
128 mm
5-1/16 inches
45 mm
1-3/4 inches
940 g
2 lbs 2 oz
A Behind-the-Scenes Interview with the Developers

A Behind-the-Scenes Interview with the Developers

The lead engineers discuss the creation of the Roland Boutique series.Read more…

An Interview with the Legendary Developers

An Interview with the Legendary Developers

Veteran Roland engineers share the development stories behind the classic synths that the Roland Boutique modules are based on.Read more…


If you have questions about operating your Roland product, please check our Knowledge Base for answers to the most common questions.
You can also contact our Product Support department by phone or email.
In addition, we have a library of Owner’s Manuals and Support Documents that you can download and reference.

Owner's Manuals

Support Documents