OXI Instruments has announced a new product: OXI ONE MKII! Takazudo Modular plans to carry it and is accepting pre-orders, so here's an early product introduction.

• Pricing and Pre-orders
• OXI ONE MKII
• New Features
• Durable Design
• Technical Specifications
• Included Items
• Additional Videos
• Takazudo's Personal Impressions

Pricing and Pre-orders#

First, let me provide pre-order information. Available quantities are limited both for our shop and for OXI Instruments, so pre-orders will be accepted on a first-come, first-served basis. If you're interested, please inquire via the link below.

• Contact Us

Our planned retail prices are as follows (all prices include tax and shipping). Shipping is scheduled for late May to June.

• OXI ONE MKII Nostalgia: 153,800 yen
• OXI ONE MKII Black Edition: 158,800 yen
• OXI Pipe MKII: 21,800 yen
• OXI Split V2: 14,800 yen

OXI ONE MKII comes in two design variations: Nostalgia and Black. There is no functional difference between the two — both have the same anodized black aluminum base. The only difference is the pad color, so choose whichever you prefer. Nostalgia has white-based pads, while Black Edition has black-based pads. (The same color variation lineup as the original OXI ONE.)

Below, we'll introduce the features and new capabilities of OXI ONE MKII, adapted from the catalog content.

OXI ONE MKII#

OXI ONE MKII is a premium sequencer designed for studio and live performance.

Equipped with an 8-part sequencer, 128-pad grid, 8 CV/Gate outputs, MIDI, Bluetooth, and USB connectivity. With new function buttons, a large screen, and advanced sequencing firmware added over the original OXI ONE, it delivers unparalleled control and streamlined workflow.

Create at the Speed of Inspiration#

OXI ONE MKII is the culmination of years of refinement, completed with invaluable feedback from the community and artists.

By integrating powerful new features and optimizing workflow, it achieves unprecedented speed and creativity. The result is the most powerful, intuitive, and affordable sequencer available today.

More is MORE#

OXI ONE MKII enhances everything that made the original great.

Based on an 8-part sequencer, with each part set to Multitrack mode, you can control up to 64 tracks. This enables flexible handling of complex compositions. With enhanced rhythm sequencing, advanced Song functions for sequence-level control, and expanded connectivity, it becomes a powerful tool for music production.

With a refined, intuitive workflow and numerous new features, it delivers unprecedented functionality, precision, and creative freedom.

Master Tool for Melody and Rhythm#

OXI ONE MKII is renowned for its melodic creativity, but it's equally powerful when it comes to rhythm.

With expanded generative functions, you can easily add dynamic variations and unlock infinite creative possibilities.

Infinite Tools for Creation#

With conditional branching, modulation lanes, and LFOs tied to each sequencer mode, you can create at the speed of inspiration.

What has made OXI ONE a trusted sequencer is largely thanks to the continuously improving internal software. With MKII's new Repeat Engine, Accumulator, and the new FLOW function button, your musical creation evolves to a new dimension.

Performance Sequencer & Studio Brain#

OXI ONE MKII is more than just the centerpiece of your studio.

With features optimized for live performance, it gives you full control over arrangement and composition. Whether in the studio or on stage, OXI ONE MKII is the ultimate creative partner.

Natural Evolution#

While a new product, OXI ONE MKII maintains the familiar workflow of the original OXI ONE.

With significant feature enhancements and improved usability, it establishes a new standard for sequencers.

New Features#

16 LFOs#

2 LFOs per part. LFOs can be internally routed or sent to CV OUT. Internal modulation is possible with just one OXI ONE — for both MIDI and modular.

Per-step Logic Conditions#

Per-step probability, every-3rd-step triggering, and various other logic options.

Multi-track#

Supports up to 8 independent tracks with customizable parameters per track. Expandable to 64 tracks.

Chord#

Rich chord progressions with diverse chord types and voicings, chromatic mode, and custom scales.

Poly#

Polyphonic sequencing with up to 7 voices. Dynamic editing with per-note probability and logic conditions.

Mono#

Full control over monophonic tracks. Complex melody construction using the Accumulator.

Stochastic#

Generate evolving, varied melodies while precisely controlling rhythm and pitch.

Matriceal#

An experimental mode with 4 independent lanes for individually controlling velocity, octave, and note. A uniquely free-form approach, like operating a modular synthesizer.

Deepen Harmony with Chord Mode#

OXI ONE MKII's Chord mode features an intuitive menu with various chord types, voicings, and bass options, enabling smooth chord progression construction. Rather than requiring complex music theory knowledge, it lets you feel out chords experientially.

Using the built-in Chord Arpeggiator, you can turn individual chords into richer, more dynamic phrases. Create deep soundscapes from simple inputs.

In addition to Chord mode's basic functions, the Harmonizer automatically maintains harmonic consistency with other tracks, creating a natural cohesion across the entire piece. You can also add variations to chord tracks through LFOs, modulation lanes, and external CV, fully leveraging the capabilities of linked external gear.

Durable Design#

OXI ONE MKII is designed with durability and performance in mind, using premium components, advanced technology, and robust materials to withstand demanding studio environments and touring conditions.

• Refined aluminum unibody
• High-quality silicone pads
• Durable aluminum knobs

Professional quality at an accessible price point — one of the most cost-effective sequencers on the market.

Technical Specifications#

• Anodized aluminum case with high-quality knobs
• Display: 1.5-inch high-brightness OLED screen
• High-grade rubber pads (black or white)
• microSD card slot (for memory expansion)
• Battery charge indicator LED
• Mini HDMI port for Pipe MKII breakout module
• MIDI I/O: 3.5mm TRS jacks (Type A)
• USB-C port (USB MIDI and power)
• CV inputs: 2 (3.5mm jacks)
• Built-in lithium polymer battery (up to 8 hours)
• Dimensions: 375 x 130 x 19 mm (30 mm including encoders)
• Weight: 950g

Included Items#

• OXI ONE MKII unit
• Travel case
• USB cable
• TRS-DIN Type A adapter
• microSD card

Additional Videos#

That concludes the catalog-based introduction of OXI ONE MKII.

Takazudo's Personal Impressions#

The following are my personal thoughts as Takazudo.

The original OXI ONE was the first product our shop carried, and I've personally been using two OXI ONEs continuously since then. The MKII strikes me as a genuine evolution of the original.

The OXI ONE Sequencer#

I believe OXI ONE is essentially a sequencer that uses an 8x32 pad grid and implements every conceivable function for it. This is possible entirely thanks to OXI Instruments' development capabilities — or more precisely, the genius of Manuel, the single developer who has been building OXI ONE. In my experience, these kinds of devices are often created by a single exceptional person. (Reference: Perfect Circuit Interview)

When thinking about what to add to such a device, what do you rely on? For OXI Instruments, the answer is clearly community feedback. Their Discord server has over 2,000 members, and what's impressive is that they address feedback and suggestions one by one.

I once heard during our ordering communications that they compile feedback from Discord into a Google Spreadsheet and address items one by one. This is not something easily done, even as part of your job. OXI ONE's significantly increased recognition today is the result of this continuous accumulation of improvements.

In terms of hardware interface, at first glance it might seem like only a few buttons have been added compared to the original. But I'm confident that those changes reflect the feedback collected over time. The original OXI ONE is already a 4-year-old product (2021), and considering the time that has passed, the hardware evolution is significant. MKII is the 2025 edition of OXI ONE, with carefully considered UI evolution built in.

About the Original OXI ONE#

That said, does this mean the original OXI ONE is now obsolete? Not at all. First, based on official FAQ conversations in OXI's Discord, they stated that alongside MKII updates, they will continue to update the original OXI ONE's firmware as much as the hardware performance allows.

Based on my developer's intuition, I imagine both the original and MKII likely run on the same microcontroller platform — think of it as the same OS. If so, the only features you'd miss on the original would be those tied to MKII's new physical buttons, and everything else would likely continue to receive updates.

Furthermore, from my experience actually using OXI ONE, while MKII has improved hardware performance, I imagine very few people have ever experienced the original hitting performance limits.

Perhaps some people running massive MIDI sequences have encountered such issues, but I personally use 4 parts for drums, several sequence lines, the harmonizer feature at full capacity, and fully utilize both CV and Gate outputs — and I've never experienced a freeze or delay. So for MKII's performance improvements, think of it as More is MORE — more is always better.

As a Second OXI ONE#

For those thinking "I just bought an OXI ONE" or "I already have one" — what I'd personally recommend is the option of MKII as a second OXI ONE. I use two OXI ONEs myself, and having two provides considerable expandability.

This might be obvious to modular synth users, but when doing live performance-type work, in the modular world it's normal to have as many sequences, switches, and CV controllers as you want. From that perspective, OXI ONE is simply one sequencer, and having two to operate independently is perfectly useful.

For example, you could keep drum sequences running on one while running 2-3 melodic sequences on the other. Conversely, trying to do everything on a single OXI ONE requires rapidly switching between parts.

In the modular synth context, adding another sequencer to the mix is a viable option — that's my impression as someone who uses two. (Usually I test various modules and make videos, in which case I use just one.)

I realize recommending two units in a product introduction might seem a bit much. But in any case, for those looking for a great sequencer, I believe OXI ONE MKII will continue to grow as a leading choice.