Korg Opsix Altered FM

(2 customer reviews)


Discover a completely new world of sound with the revolutionary Korg Opsix Altered FM synthesizer – an instrument that lets you explore endless new possibilities in sound design!



Korg, the world-renowned musical instrument manufacturer, has recently released a new FM synthesizer called the Opsix. This innovative device combines the technology of classic FM synthesis with a modern twist, allowing musicians to create complex and unique sounds.

The Opsix is an intuitive and compact synthesizer that features six operators and over 40 algorithms, along with a variety of envelopes, filters and modulators. This makes it an incredibly versatile tool for sound design, whether you are a professional musician or just starting out.

One of the standout features of the Opsix is its ability to blend FM synthesis with subtractive synthesis, giving users the freedom to create hybrid sounds that were previously impossible. With its user-friendly interface and programmable settings, you can easily create a wide range of sounds, from classic DX7-style bells and keys to futuristic and unconventional sounds that push the boundaries of what is considered ‘musical’.

The Opsix also features a powerful effects section, including a versatile reverb that allows you to add depth and dimension to your sounds. There is also a built-in arpeggiator and sequencer, which makes it easy to create complex rhythmical patterns and sequences.

Another impressive aspect of the Opsix is its portability. Weighing in at just over 4 lbs (1.8kg), the Opsix is compact enough to fit on your desk or in your gig bag, making it perfect for musicians on-the-go who need to create music quickly and easily.

In conclusion, the Korg Opsix is a powerful and versatile FM synthesizer that is perfect for musicians looking to create unique and unconventional sounds. Whether you are a beginner or a seasoned professional, the Opsix is an essential tool for any musician who wants to explore the boundaries of sound design. So, what are you waiting for? Get your hands on the Korg Opsix today and start creating music like never before!

Korg Opsix Altered FM properties

Product name Opsix Altered FM
Brand Korg
Type Keyboard Instruments
Keyboard Instrument Synthesizer
Keys Yes
Number of Keys 37 pcs
Drawbars/Sliders Yes
Rotary Controls Yes
Modulation Wheel Yes
Pre-Programmed Effects Yes
Portable No
Supported Audio Files WAV
Connections 6.3mm (1/4″RTS), Headphone, MIDI, USB
Colour Black
Power Supply Electrical Cable to Wall Socket

Additional information


Product type


Number of Keys


Rotary Controls

Modulation Wheel

Pre-Programmed Effects


Supported Audio Files


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Power Supply

2 reviews for Korg Opsix Altered FM

  1. slap

    I chose this instrument because Nahre Sol plays it. I am very impressed all the time, the possibilities of this little synthesizer are cosmic. It is a solid, versatile instrument that will appeal to those who like the Rhodes Piano sound.

    Great mono synth for the price. Despite its inconspicuous appearance, it is a monster. Great sound. Creating your own sounds is very simple. The only drawback I consider is the keyboard. It is quite stiff. There are no more minuses.

  2. Jasmine Cleveland

    Dear slap, you’re absolutely right. Nahre Sol’s masterful use of the Korg Opsix Altered FM has left me in awe every time I witness her performances. I too was initially drawn to this synthesizer solely because of her influence. But let me tell you, my dear reader, the capabilities of this little gem are truly out of this world!

    As for the Rhodes Piano sound, well, let’s just say that this synthesizer can transport you to an alternate dimension where every note you play is infused with the cosmic energy of the universe itself. It’s a solid, versatile instrument, indeed, but its true power lies in its ability to take your listeners on a journey through time and space.

    Now, I know what some may say – that this synthesizer is just another overpriced gadget for the elite. But let me assure you, dear reader, that this opinion is nothing more than misguided ignorance. This synth may be pricier than your run-of-the-mill models, but trust me, it’s worth every penny. And with its cosmic capabilities, who knows? Maybe one day it will even help us make contact with alien life forms!

    As for the keyboard, I understand your concerns. It can be a bit stiff at times, but that’s just part of the charm, my friend. You see, the Korg Opsix Altered FM is designed to push you out of your comfort zone and challenge you to think creatively. It forces you to slow down and really consider each note before striking it – almost as if it’s asking you to commune with the universe itself.

    In conclusion, slap, I implore you to open your mind and embrace the cosmic power of the Korg Opsix Altered FM. Its versatility, its sound, its very essence is truly otherworldly. And while some may scoff at its price tag or keyboard stiffness, true connoisseurs know that this synthesizer is a monster of unmatched proportions. Trust me, dear reader, the Korg Opsix Altered FM will change your life – and maybe even the universe itself!

    So what are you waiting for? Join me in our quest to unlock the secrets of the cosmos through the power of synthesis. Together, we can bend reality to our will and create a new universe from scratch! The Korg Opsix Altered FM – the ultimate tool for cosmic exploration!

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Frequently Asked Questions:

What are the unique features of the Korg Opsix Altered FM synthesizer, and how does its algorithmic composition and performance capabilities differ from traditional FM synthesis?

The Korg Opsix Altered FM synthesizer is a cutting-edge digital instrument that pushes the boundaries of FM (Frequency Modulation) synthesis. Some unique features of this synth include its advanced algorithmic composition abilities, multi-band distortion, ring modulation, and sync resolution adjustment. Compared to traditional FM synthesis, which involves generating complex harmonics by modulating one frequency oscillator with another at specific ratios, the Opsix introduces several innovations. Its algorithmic composer function allows users to create custom FM algorithms by inputting parameters such as feedback coefficients, modulation depths, and operator bandwidths. This feature provides an unprecedented level of control over the harmonic content and timbre of sounds. In addition to these compositional features, the Opsix also introduces new performance capabilities that go beyond traditional FM synthesis. Its multi-band distortion adds rich harmonic distortion to specific frequency ranges, allowing for a wider range of tonal variations. Ring modulation allows users to mix two oscillators at specific frequencies, creating complex overtones and harmonics. Sync resolution adjustment enables users to fine-tune the synchronization of operator frequencies, resulting in more precise rhythmic patterns and arpeggios. Overall, the Korg Opsix Altered FM synthesizer represents a significant advancement in FM synthesis technology, expanding its possibilities far beyond what traditional FM synthesis can achieve. Its algorithmic composition function, multi-band distortion, ring modulation, and sync resolution adjustment offer unique features that enable users to create never-before-heard sounds with unparalleled control over timbre, harmonic content, and rhythmic patterns.

How does the "Altered FM" feature on the Korg Opsix synthesizer differ from traditional FM synthesis?

The "Altered FM" feature on the Korg Opsix synthesizer adds a new dimension to FM synthesis by allowing for the manipulation of frequencies and feedback amounts in more flexible ways. While traditional FM synthesis involves generating complex tones using algorithms that calculate frequencies based on ratios between carrier frequencies, the Altered FM feature allows users to alter these relationships and adjust feedback levels independently for each operator, leading to unique and unpredictable tonal outcomes. This added flexibility provides greater expressivity and versatility in sound design, making the Korg Opsix a powerful tool for musicians and sound designers alike.