KORG’s NTS-4 Performance Mixer Kit feels aimed at a very specific producer problem: once a hardware setup grows past one drum machine and one synth, the mixer becomes the part of the setup that either keeps the session moving or slows everything down.
The NTS-4 is a compact, self-assembled analog performance mixer designed for volcas, NTS instruments, desktop synths, Eurorack gear, and small live rigs. It is part of KORG’s Nu series, so it ships as a kit and can be assembled without soldering in minutes.
That DIY angle connects directly to the article I wrote on KORG’s Nu NTS-2+, because the appeal of the series has always been practical hardware access without turning the assembly process into the main event.
Six Channels Is Enough for a Real Hardware Setup
The NTS-4 includes four stereo minijack inputs and two mono minijack inputs. The mono inputs include a switchable attenuator for line-level and Eurorack-level signals, which gives modular users a cleaner way to bring their rig into a small mixer.
That is the useful part here. A producer can connect a few volcas, a desktop synth, and a modular voice without needing a larger studio mixer on the table. The unit can process up to 10 audio signals, with main outputs on unbalanced quarter-inch jacks and headphone output on a stereo minijack.
The Eurorack side also connects well with my coverage of ADDAC219 and hardware integration inside modular setups, because the real issue is usually level, routing, and keeping the system playable.
Cue and Mute Make It a Performance Tool
Every channel has its own CUE and MUTE buttons. CUE sends a channel to the headphones before it reaches the main mix, which matters during a live set when a producer needs to check tuning, level, or timing before bringing in a source.
MUTE gives the opposite control. It cuts a channel immediately, which is useful for transitions, drops, and fast arrangement changes.
Those two controls are what push the NTS-4 past basic summing. It is still a small mixer, but it gives performers the controls they need when the setup is being played in real time.
Built-In Effects Keep the Rig Smaller
Each channel includes a SEND FX control with seven effect options: delay, ping pong delay, two hall reverbs, two slap reverbs, and chorus. The main output has a TOTAL FX engine with 10 options: low-pass filter, high-pass filter, isolator, flanger, phaser, decimator, drive, distortion, compressor, and limiter.
That split is practical. Send effects can place individual channels into space, while the master effects can shape the full mix at the end of the chain.
USB-C handles power, 48 kHz / 24-bit audio, and USB MIDI. That means a producer can record a hardware pass to a computer or phone, stream a set, or send MIDI from a DAW through the dedicated MIDI OUT jack to external gear.
Who the NTS-4 Is Really For
The NTS-4 is built for producers who want hardware sessions to stay small, direct, and easy to record. It measures 195 x 125 x 38 mm and weighs 613 g, so it can sit beside compact synths without taking over the desk.
The aluminum chassis helps it fit KORG’s compact desktop hardware line, and the DIY format keeps it close to the wider Nu idea.
Final pricing is still pending, but KORG is positioning the NTS-4 as an accessible way into hardware mixing. If the price lines up with that goal, this could become a practical center point for producers building compact live rigs, modular side setups, or small DAWless writing stations.
Will Vance is a professional music producer who has been involved in the industry for the better part of a decade and has been the managing editor at Magnetic Magazine since mid-2022. In that time period, he has published thousands of articles on music production, industry think pieces and educational articles about the music industry. Over the last decade as a professional music producer, Will Vance has also ran multiple successful and highly respected record labels in the industry, including Where The Heart Is Records as well as having launched a new label with a focus on community through Magnetic Magazine. When not running these labels or producing his own music, Vance is likely writing for other top industry sites like Waves or the Hyperbits Masterclass or working on his upcoming book on mindfulness in music production. On the rare chance he's not thinking about music production, he's probably running a game of Dungeons and Dragons with his friends which he has been the dungeon master for for many years.
