Roland JUNO-Di

61-Key Mobile Synthesizer w/ Over 1,000 Sounds, Built-In Song Player

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Travel Light, Play Heavy with the Roland JUNO-Di!

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Check out JUNO-Di Introduction Part 2!

Whether you're rocking out on stage or in the streets, the JUNO-Di is a touring musician’s sweetest dream. It’s simple to use, it's lightweight, and it can be powered by batteries. It’s crammed with a vast collection of over 1,000 Roland-quality sounds, a convenient “direct access” editing control panel and a built-in Song Player for even more epic performances. Beginners and professionals alike are certain to love this portable, great-sounding synth.

Over 1,000 Spectacular Sounds
This mind-blowing new synth has a top-of-the-line voice engine that's packed with world-class sounds including lush strings, percussion, fantastic guitars, grand and electric pianos, and powerful brass along with banks of exotic instruments, modern synthesizer sounds and so much more. The sheer volume and diversity of the sound bank is sure to compliment virtually any style of music. If you want to customize the sounds, the dedicated “Sound Modify” knobs on the front panel allow you to meticulously tailor each sound 'til your heart's content, even while you’re playing. Editing software is also included in case you prefer more advanced computer-based editing.

Simple Navigation
With so many sounds onboard, it could be a daunting task to find what you need. But fear not — the JUNO-Di simplifies the process of finding sounds with its dedicated category buttons. If you want a piano, for example, just press the Piano button. You can even assign your most-used sounds to the Favorite buttons for instant access. Editing is easy too. If you want to create layers or splits, dedicated buttons and the large LCD make the process fast and friendly. And don’t forget the onboard rhythm patterns, which can be easily adjusted on the fly with a dedicated tempo control. It’s a great tool for practice and performance.

Let’s Go!
The JUNO-Di was born to travel. It’s strong yet amazingly lightweight (only 5.2kg) making it easy to lift and carry. The battery compatibility lets you play for up to five hours without plugging in (uses Ni-MH AA-size rechargeable batteries). When used in conjunction with a battery-powered amp such as Roland’s famous CUBE Street or MOBILE CUBE, the JUNO-Di can be played and heard anywhere. A battery-life indicator on the front panel ensures that you won’t lose power unexpectedly.

Sing Along!
More than meets the eye, the JUNO-Di lets you plug a microphone into its external input and process your voice through the built-in vocoder. A dedicated reverb is assigned to the input, so you can add lush ambience to your voice without taking away from the main onboard effects. Sing along with your performances and transform your voice in colorful and creative ways, from silky smooth to sci-fi robotic.

Built-In Song Player
With its USB MEMORY port and Song Player function, the JUNO-Di enables direct playback and control of backing tracks from a USB key. You can play MP3, WAV, AIFF, and SMF files, and control them from the dedicated buttons on the front panel. Impress your audiences with full-band performances from a single keyboard! Additionally, the Center Cancel feature lets you sing along karaoke-style with audio files in the Song Player for a complete entertainment experience. You can also connect MP3 players directly to the JUNO-Di through its external input.

What's In The Box?

  1. (1) JUNO-Di Owner's Manual
  2. (1) CD-ROM
    (Sound Editor, Librarian,
    Playlist Editor, USB Driver)
  3. (1) USB Memory Protector
  4. (1) AC Adapter (PSB-1U)
  5. (1) Power Cord

Product Features:

  • Professional synthesizer with over 1,000 instruments onboard
  • Friendly, intuitive user interface
  • Battery operation for mobile use (supports Ni-MH AA-size rechargeable batteries)
  • MP3, WAV, AIFF, and SMF playback capability via optional USB memory — perfect for backing tracks when performing live
  • Microphone input with dedicated reverb and vocoder effects for sing-along
  • PC/Mac Editor software included
  • Also found as: JUNO-DI, JUNODI, JUNOD-I
  • Authorized Internet Dealer
  • 1-year Parts/90-days Labor Manufacturer's warranty

Optional Accessories:


  • Keyboard: 61 velocity-sensitive keys
  • Maximum Polyphony: 128 Voices
  • Parts: 16 Parts
  • Wave Memory: 64 MB (16-bit linear equivalent)
  • Preset Memory:
    • Patches: 1082 + 256 (GM2)
    • Rhythm Sets: 20 + 9 (GM2)
    • Performances: 64
  • User Memory:
    • Patches: 128
    • Rhythm Sets: 8
    • Performances: 64
    • Favorites: 100
  • Effects:
    • Multi-Effects: 3 systems, 79 types
    • Chorus: 3 types
    • Reverb: 5 types
    • Mic Input Reverb: 8 types
  • Playable File Format:
    • Standard MIDI File: format-0/1
    • Audio File: WAV, AIFF, MP3
  • Rhythm Pattern: Preset: 24 groups x 6
  • Arpeggiator: Preset: 128
  • Chord Memory: Preset: 17
  • Controllers:
    • D Beam Controller
    • Pitch Bend/Modulation Lever
    • Sound Modify Knob x 5
  • Display: 18 characters, 1 line + 20 characters, 2 lines custom backlit LCD
  • External Storage Device: USB Memory (supports USB 2.0 Hi-Speed Flash Memory)
  • Connectors:
    • OUTPUT Jacks (L (MONO), R): 1/4" Phone Type
    • PHONES Jack: Stereo 1/4" Phone Type
    • MIC IN Jack: 1/4" Phone Type
    • EXT INPUT Jack: Stereo Miniature Phone Type
    • USB COMPUTER Connector (for USB MIDI)
    • Hold Pedal Jack
    • MIDI IN/OUT Connectors
    • DC IN Jack
  • Power Supply:
    • DC 9V: AC Adapter
    • 8 x Ni-MH AA Size Rechargeable Batteries (sold separately)
  • Current Draw: 600mA
  • Battery Life (Continuous Use): Approx. 5 hrs
    (this figure will vary depending on conditions of use)
    (Approx. 4 hrs if USB memory is connected)
    (Carbon-zinc or alkaline batteries cannot be used)
  • Size & Weight:
    • Weight: 11 lbs. 8 oz. (5.2 kg)
    • Width: 39-11/16" (1,008 mm)
    • Depth: 11-13/16" (300 mm)
    • Height: 4-1/8" (104 mm)

System Requirements for JUNO-Di Editor:

  • Windows:
    • OS: Microsoft® Vista® / XP Home / XP Professional**
    • CPU/Clock: Intel® Core™, Pentium® Processor 1.5 GHz or higher
    • Memory (RAM): 512 MB or more
    • Hard Disk: 200 MB or more
    • Display/Colors: 1024 x 768 dots or higher/24-bit Full Color or more
    • USB: USB 2.0 port
    • CD-ROM Drive
    • ** This product does not support 64-bit or Windows XP Media Center Edition

  • Mac:
    • OS: Mac OS X 10.4.3 or later
    • CPU/Clock: Intel® Core™/Xeon™ Processor, PowerPC G5
    • Memory (RAM): 512 MB or more
      * For Mac OS X v10.5 or later, 1 GB or more
    • Hard Disk: 200 MB or more
    • Display/Colors: 1024 x 768 dots or higher/16.7 million colors or more
    • USB: USB 2.0 port
    • CD-ROM Drive

Keyboard Features

Number of Keys
The number of keys on the keyboard of the MIDI controller.
Key Weighting
The type of weighting of the keys on the MIDI controller
Mod Wheel
The mod wheel is used to manipulate or modify the sound of the sample triggered by the midi controller often an effect like the rotary cab effect of an organ.
Pitch Wheel
The Pitch wheel is used to bend the pitch of the sample the MIDI controller is triggering.
Aftertouch is a signal representing sustained pressure that is interpreted by the MIDI device differently than initial velocity.
Octave Shift
A set of buttons that shift the keys up or down one octave for use on MIDI controllers that do not have a full 88-key keyboard.

Advanced Controls

Number of Performance Pads
The number of performance percussion pads that can be assigned to trigger samples in the MIDI enabled device.
Number of Rotary Encoders
The number of assignable rotary encoders on the MIDI controller
Number of Fader Encoders
The number of assignable fader encoders on the MIDI Controller
Transport Controls
Transport controls are an array of buttons typically consisting of: play, pause, stop, f-forward, rewind, and record arm, that are used to control a media player, recorder, or software based system.

Controller Specifications

Footswitch/Expression Pedal Input(s)
The ability for the device to be used with a footswitch, expression, or sustain pedal.
MIDI Connections
The configuration of input and output connections on a MIDI controller.
The ability for the MIDI controller to interface with a MIDI device via USB.
Power Supply
The power source for the controller.
The width of the item from left to right (side-to-side) measured in inches.
The height of the item, measured from top to bottom, in inches.
The front-to-rear depth of the item, in inches. If the item is angled or slanted, this value is the bottom measurement.
Weight (Pounds)
This is the weight of the item in pounds (lbs).

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
90 days
Warranty Provider

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Sonic Electronix Wiring Guide

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Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Roland JUNO-Di

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Roland JUNO-Di

61-Key Mobile Synthesizer w/ Over 1,000 Sounds, Built-In Song Player


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