Pricing and availability

We compare 600+ stores and found this item at 9 stores. Prices updated .

Sweetwater
5.0 (3)
$699.99 $549.99 $150.00 · All time low
Amazon
3.6 (4)
$549.99
Reverb
$542.82 New
$421.54 Used
B&H
5.0 (1)
$549.99
Gear4Music
£490.00

Average Price: $552

Standard/Professional

$500

$1501+

Price Tier

Budget

Standard

High-end

Price History

Based on price data from 6 merchants for "Korg Opsix Module Altered FM Synthesizer Rackmountable Desktop Module". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

* Product prices and availability are updated by Equipboard every 24hrs and are subject to change. Equipboard may receive compensation for purchases made at participating retailers linked on this site. This compensation does not affect what products or prices are displayed, or the order of prices listed. For more information, please refer to our affiliate disclosure.

Description

Unleash your sonic creativity with the Korg Opsix Module Altered FM Synthesizer, a powerhouse of digital synthesis that offers an innovative take on FM technology. This rackmountable desktop module is a versatile tool for musicians seeking to explore the vast realms of sound design. With its 64-voice polyphony and six-operator architecture, the Opsix Module provides a broad palette for crafting everything from lush pads to striking leads. The intuitive operator mixer, complete with color-coded LED sliders and knobs, makes sound shaping a tactile and engaging experience.

The Opsix Module isn't just about FM synthesis. It integrates six distinct synthesis styles, including subtractive, semimodular, analog modeling, waveshaping, additive, and classic FM. This allows you to delve into a world of sound possibilities, from vintage analog tones to futuristic digital landscapes. The module's MIDI 2.0 compatibility with polyphonic aftertouch ensures seamless integration into modern setups, providing expressive control over your music.

Designed for ultimate flexibility, the Opsix Module can be easily adapted to both desktop and rackmount configurations. Its sleek 19-inch profile and recessed jack panel streamline cable management, making it an ideal fit for any studio environment. Enhance your sound further with the onboard 30 high-quality effects, a polyphonic motion sequencer, and a randomizer feature that invites serendipitous discoveries.

Key Features:

  • 64-voice polyphony with a true 6-operator FM sound generator
  • Six synthesis styles: Subtractive, Semimodular, Analog Modeling, Waveshaping, Additive, and Classic FM
  • MIDI 2.0 compatibility and polyphonic aftertouch support
  • Intuitive operator mixer with color-coded LED sliders and knobs
  • Rackmountable and desktop-friendly 19-inch profile
  • 30 high-quality onboard effects
  • Polyphonic motion sequencer and randomizer function
  • Compatible with original Opsix sounds and third-party libraries
  • USB-B connectivity for sound management with Korg’s Sound Librarian software

Product specs

Type 4U Rackable/Desktop Altered FM Synthesizer
Analog/Digital Digital
Other Controllers 6 x Level Sliders, 6 x Ratio Knobs, 6 x Data Entry Knobs
Polyphony 80 Stereo Voices
Sequencer 16-step
Analog Outputs 2 x 1/4" (L/mono, R)
Headphones 1 x 1/4"
MIDI I/O In/Out/USB, MIDI 2.0 Property Exchange
Pedal Inputs 1 x 1/4" (damper)
USB 1 x Type B
Power Supply AC Adapter
Height 4.09"
Width 19.02"
Depth 6.77"
Weight 3.75 lbs

FAQs

How many voices does the Korg Opsix Module support?

The Korg Opsix Module offers 80 stereo voices, providing ample polyphony for complex sound design and performance.

Can the Korg Opsix Module be rack-mounted?

Yes, the Korg Opsix Module is designed to be rack-mountable, fitting into a 4U space for convenient integration into studio setups.

What are the connectivity options for the Korg Opsix Module?

The Korg Opsix Module features MIDI In/Out/USB, analog outputs, and a headphone jack, allowing versatile connectivity with other gear and audio systems.

Does the Korg Opsix Module include a sequencer?

Yes, the Korg Opsix Module includes a 16-step sequencer, enabling users to create and manipulate patterns directly on the device.

What type of power supply does the Korg Opsix Module require?

The Korg Opsix Module operates with an AC adapter, ensuring stable power for both studio and live performance environments.

American Musical Supply

American Musical Supply

Design Endless Soundscapes with Korg’s Rack Modules & Keystage Midi Controller

Video thumbnail for Design Endless Soundscapes with Korg’s Rack Modules & Keystage Midi Controller by American Musical Supply

Design Endless Soundscapes with Korg’s Rack Modules & Keystage Midi Controller

American Musical Supply

American Musical Supply

Video thumbnail for Korg takes us Back to the Past and to the Future | AMS NAMM 2024 by American Musical Supply

Korg takes us Back to the Past and to the Future | AMS NAMM 2024

American Musical Supply

American Musical Supply

Reviews

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Korg Opsix Module Altered FM Synthesizer Rackmountable Desktop Module.

Features and functionality

  • Rack ears double as tilt angle brackets, allowing for both rack mounting and a 45-degree tilt for desktop use.

    Source
  • The module sits flat at a 22-degree angle on four rubber feet, ideal for standing over it.

    Source
  • Owners highlight the lack of a hold button as a significant oversight, especially for long-evolving pad sounds.

    Source

Comparisons

  • The Opsix module has 64 voices, which matches the 37-key mkII version but differs from the 80-voice Opsix SE.

    Source
  • Compared to the Yamaha DX-200, the Opsix allows easier integration of FM and subtractive synthesis, making it more intuitive for some users.

    Source

User experience

  • Owners appreciate the ability to trigger notes using sequencer buttons, useful for testing sounds without a MIDI controller.

    Source
  • Reports indicate that some units have screen issues, with replacement parts being difficult to source, affecting long-term usability.

    Source

Value and pricing

  • The module is priced at $699, slightly cheaper than the 37-key version at $749, but more expensive than older models.

    Source

Build quality

  • The Opsix's knobs and faders are noted for being durable, but the overall lightweight plastic construction feels toy-like, with only a thin aluminum front panel.

    Source

Software and compatibility

  • The Opsix runs on a Raspberry Pi compute module, influencing perceptions of its value and complexity compared to fully bespoke hardware synthesizers.

    Source

Use cases and applications

  • The Opsix is praised for enabling experimentation with FM synthesis through an intuitive interface, appealing to users seeking a hands-on alternative to FM VSTs.

    Source

Based on 0 Reviews and 0 Ratings

5 star
4 star
3 star
2 star
1 star

Genre Usage

Based on how artists on Equipboard use this gear, it is most commonly found in the following genres.

More Korg Synthesizers

Korg Minilogue

$411.00 - $699.99

# 12

Rank

Aphex Twin King Krule Misha Mansoor
132 artists using
Korg MicroKORG

$385.00 - $530.00

# 16

Rank

Kevin Parker Joe Duplantier Frank Iero
324 artists using
Korg MS-20 Mini

$493.48 - $899.99

# 19

Rank

Kevin Parker Mike Shinoda Deadmau5
93 artists using
Korg microKORG XL+

$425.00 - $749.99

# 52

Rank

JPEGMAFIA Tobacco Neil Cicierega
19 artists using
Korg Volca Bass

$119.99 - $159.99

# 53

Rank

Richie Hawtin Eric Avery Amir Derakh
39 artists using
Korg PolySix

$99.99 - $1,100.00

# 73

Rank

Frank Ocean Roland Orzabal Swimming With Dolphins
75 artists using
Korg microKORG S

$444.00 - $749.99

# 88

Rank

Stu Mackenzie SEMATARY Arca
10 artists using
Korg Wavestate

$549.99 - $649.99

 
Jordan Rudess Vangelis Jean Michel Jarre
8 artists using
Korg Opsix

$329.00 - $417.95

 
Damon Albarn The Chemical Brothers Jordan Rudess
12 artists using
Korg Karma

$14.99 - $408.00

 
Phil Collins Rick Wakeman Tuomas Holopainen
29 artists using

Accessories & Related Items

Artist usage

Community setups

Similar

Gear Guides

  • Added to Equipboard on by

    moowgli
    moowgli

    Gear IQ 707