New: Korg NTS-4 Mixer Kit — The Performance Hub for Your Hardware Setup
Korg just released the NTS-4, a compact 6-channel performance mixer that doubles as a USB-C audio interface, and it is available today at Blackout Audio for $349 CAD. If you run a desktop synth rig, a Volca chain, Eurorack modules, or any combination of small hardware — this is the dedicated mixer built specifically for that workflow.
The NTS-4 is part of Korg's Nu:Tekt DIY kit series. It ships as a soldering-free assembly kit that goes together in minutes. You get a steel chassis, built-in dual stereo effects, USB audio and MIDI, and proper channel controls in a footprint smaller than most laptop stands.
Korg NTS-4 Performance Mixer Kit
What the NTS-4 Brings to Your Setup
The channel layout is 4 stereo inputs plus 2 mono inputs, giving you six total input channels. That is enough for a full Volca setup, a handful of synths, or a mixed rig of Eurorack voices and standalone boxes. Each channel gets its own level control, CUE button for headphone monitoring, and MUTE button for performance switching.
Dual Stereo Effects
The NTS-4 includes two independent stereo effects buses. The Send FX bus gives you delay, reverb, and chorus — controlled per channel via a send knob. The Total FX bus applies across the main output and includes filter, flanger, phaser, drive, compressor, and limiter. Between the two, you get enough processing to shape a full live set without external pedals.
USB-C Audio Interface
Connect to a computer via USB-C and the NTS-4 operates as a 48 kHz / 24-bit audio interface with USB MIDI. That means you can record your hardware jams directly into your DAW, stream a live set over OBS, or use the mixer as a hub between hardware and software. The unit is also bus-powered over USB-C, so one cable handles audio, MIDI, and power.
Eurorack-Compatible Mono Inputs
The two mono channels accept 3.5mm signals and include switchable attenuators, making them directly compatible with Eurorack-level signals. You can patch modular voices straight in without an external attenuator module. For semi-modular owners running a Moog Mother-32, Behringer Neutron, or Make Noise 0-Coast alongside desktop gear, this removes one more adapter from the chain.
Connectivity
- Outputs: 1/4\" stereo main out, 3.5mm headphone out
- Send/Return: External effects loop via 3.5mm jacks
- MIDI OUT: 3.5mm TRS (Type A)
- USB-C: Audio interface + MIDI + bus power
Build and Assembly
The chassis is steel, not plastic. Korg designed the NTS-4 as a Nu:Tekt kit, but unlike earlier kits that required soldering, this one assembles with screws only. Expect about 15–20 minutes from unboxing to a working mixer. The kit approach keeps costs down while giving you a hands-on build experience.
Who Is the NTS-4 For?
Desktop Synth Players
If you have three or four synths on a desk and have been running them through a cheap DJ mixer or directly into an interface one at a time, the NTS-4 is the dedicated solution. Six channels with proper level controls, headphone cue, and built-in effects in a footprint that fits on the same desk as your gear.
Volca and NTS Owners
Korg clearly designed this with their own ecosystem in mind. A Volca chain of four or five units plus an NTS-1 or NTS-3 all use 3.5mm outputs. The NTS-4 accepts those signals directly, adds effects, and sums everything to a single stereo output or USB stream. No adapters, no separate mixer eating desk space.
Eurorack and Modular Artists
The attenuator-equipped mono inputs handle hot Eurorack signals without clipping. If you run a small modular system alongside desktop synths, the NTS-4 bridges both signal levels in one box. The send/return loop also lets you route modular effects processors into the mixer chain.
Live Performers
CUE and MUTE per channel, built-in effects, and a steel chassis that can handle transport. The NTS-4 works as a performance hub for hardware sets where you need to mute voices, cue the next element in your headphones, and apply effects on the fly — all without a laptop.
Streamers and Content Creators
The USB-C audio interface function means you can run an entire hardware synth setup into OBS, Discord, or any DAW over a single USB cable. Record multi-source jams, stream live production sessions, or use it as a submixer feeding your main streaming interface.
More Korg at Blackout Audio
We carry a range of Korg synthesizers, drum machines, and controllers. These are currently available in our deals section — open-box units in unused condition at reduced pricing.
The MicroKORG 2 is the latest version of one of the most recognized synth/vocoder combos in music production. The Drumlogue is Korg's hybrid drum machine combining analog, digital, and user-loaded engines. The Volca Beats and Volca FM 2 pair perfectly with the NTS-4 as part of a compact desktop rig. The MicroKEY 25 adds a keyboard controller to drive any of them via MIDI.
Shop Korg in Canada
Browse the full Korg lineup at Blackout Audio. Free shipping on orders over $199 CAD, shipping across Canada from Toronto.
Frequently Asked Questions
What is the Korg NTS-4?
The NTS-4 is a 6-channel (4 stereo + 2 mono) compact performance mixer with built-in dual stereo effects (delay, reverb, chorus, filter, flanger, phaser, drive, compressor, limiter), a USB-C audio interface (48 kHz/24-bit), and USB MIDI. It ships as a soldering-free DIY kit and retails for $349 CAD.
Do I need to solder the NTS-4 kit?
No. The NTS-4 is a screws-only assembly. No soldering iron needed. Most users report assembly takes 15–20 minutes.
Can the NTS-4 handle Eurorack signals?
Yes. The two mono inputs include switchable attenuators designed for Eurorack-level signals. You can patch modular voices directly without external level conversion.
Does the NTS-4 work as a USB audio interface?
Yes. Connected via USB-C, it functions as a 48 kHz / 24-bit stereo audio interface with USB MIDI. It is also bus-powered over USB-C, so one cable handles power, audio, and MIDI.
What outputs does the NTS-4 have?
1/4 inch stereo main outputs, a 3.5mm headphone output, and a 3.5mm TRS MIDI OUT. It also has send/return jacks for external effects processing.