TL;DR: Korg has quietly teased the NTS-4 Mixer at Superbooth 2026, a compact 10-channel performance mixer kit in the Nu:Tekt DIY lineup. It packs four stereo minijack inputs, two Eurorack-compatible mono minijack inputs, and a dual stereo FX processor based on the SDK Mk2 — meaning you can load custom algorithms just like on the NTS-1 and Kaoss Pad NTS-3. It also doubles as a USB-MIDI and audio interface, but remains a DIY kit with no price or release date yet.
- 10-channel analog mixer with 4x stereo minijack inputs + 2x Eurorack-compatible mono minijack inputs
- Built-in dual stereo FX processor based on SDK Mk2 — user-programmable via the same ecosystem as NTS-1 and NTS-3
- Per-channel level, send, pan, cue, and mute controls; headphone output with cue balance
- USB-MIDI and audio interface functionality with TRS 3.5mm MIDI output
- Only available as a DIY kit; price and availability TBA
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What Is the Korg NTS-4 Mixer?
Korg has been drip-feeding us teasers ahead of Superbooth 2026, and while the mysterious sheet-covered synthesizer has everyone guessing, the NTS-4 Mixer has stepped into the light with a refreshing lack of fanfare. It’s a 10-channel performance-oriented analog mixer in the Nu:Tekt lineup, which means it arrives as a DIY kit. You solder, you assemble, you get a mixer. It’s a ritual we at Noxal appreciate — nothing like the smell of flux and coffee to start a morning.
The NTS-4 offers four stereo minijack inputs and two Eurorack-compatible mono minijack inputs. I’ll admit, I prefer full-size jacks — the Zoom L6 spoiled me — but for a compact, portable unit aimed at modern hardware setups, 3.5mm jacks make sense. Each channel gives you control over level, send, and pan, plus buttons for cue and mute. It’s clean, functional, and delightfully analog in the signal path.
The SDK FX Engine: A Smart Move
The headline feature here is the built-in dual stereo FX processor, which is based on the same SDK Mk2 that powers the Kaoss Pad NTS-3 and the NTS-1. This means you’re not stuck with factory effects — you can load custom algorithms created by third-party developers or even write your own. That’s a level of flexibility most compact mixers don’t even dream of.
You control the FX with two parameters: type and depth. On the right side of the unit, you’ll find controls for headphone level, USB-audio, cue balance, and main output. It’s a simple interface, but the magic is in the SDK ecosystem. Want a shimmer reverb from a boutique developer? Load it. Need a weird granular effect for live sets? Someone’s probably already built it. This is the kind of clever engineering that makes me reach for another cup of coffee and start browsing the NTS-1 logueSDK forums.
Inputs, Outputs, and the DIY Ritual
The NTS-4 Mixer isn’t just an analog mixer with digital FX — it’s also a USB-MIDI and audio interface. You get a TRS 3.5mm MIDI output socket, which lets you route MIDI data from your computer or mobile setup directly into your hardware. That’s a thoughtful addition for anyone using a laptop or iPad as a sequencer.
Like all Nu:Tekt products, the NTS-4 arrives as a DIY kit. That means you’ll be spending an evening with a soldering iron, a schematic, and probably a podcast about modular synthesis. It’s not for everyone, but for those of us who enjoy the process, it’s part of the appeal. Korg hasn’t announced pricing or availability yet, but given the NTS-1 and NTS-3 precedents, expect it to be affordable — under €200 if we’re guessing.
How It Stacks Up Against the Competition
Let’s be honest: the compact mixer space is crowded. The Zoom L6 is a solid contender with full-size jacks and decent preamps. The Bastl Dude is a passive, battery-powered option for minimalists. And then there’s the Mackie Mix series, which offers more channels but no USB interface. The NTS-4 Mixer differentiates itself with the SDK FX engine — that’s its killer feature.
I wouldn’t give up my Zoom L6 for this, but I can see the NTS-4 becoming a favorite for live performers who want custom effects without hauling a rack of outboard gear. The DIY aspect also means you can mod it if you’re brave enough. The question is whether Korg will release a pre-built version for those who just want to plug and play. We at Noxal doubt it — the Nu:Tekt line is committed to the kit philosophy.
Who Is This Mixer For?
This mixer is for the solder-happy synth nerd who wants a portable, customisable performance tool. If you’re gigging with a Eurorack case, a couple of desktop synths, and a laptop running sequences, the NTS-4 could be your central hub. The SDK effects mean you can tailor the sound to your specific setup — something no off-the-shelf mixer offers.
It’s also for the curious tinkerer who enjoys building gear as much as playing it. The DIY kit keeps the price down and the engagement high. But if you hate soldering or need full-size jacks, look elsewhere. The NTS-4 is a niche product, but within that niche, it’s genuinely exciting.
Frequently Asked Questions
Can I use the NTS-4 Mixer with Eurorack modules?
Yes — two of the mono inputs are Eurorack-compatible, meaning they can handle modular-level signals without external attenuation. The stereo inputs use minijacks, so you’ll need adapters for full-size Eurorack cables.
Are the effects the same as on the NTS-1?
They’re based on the same SDK Mk2 platform, so the architecture is identical. However, the NTS-4 ships with its own preset effects tailored for mixing. You can load custom algorithms from the NTS-1 logueSDK ecosystem, so compatibility is high.
Is the NTS-4 Mixer available pre-built?
No — like all Nu:Tekt products, it’s sold only as a DIY kit. Korg has not announced any plans for a pre-assembled version. If soldering isn’t your thing, you might want to look at the Zoom L6 or Mackie Mix series instead.
I’ll be soldering mine while my third espresso of the morning cools — the ritual is half the fun, and the other half is wondering if I’ll plug the power backwards.