Introduction

The Korg Nu:Tekt NTS-4 mixer kit represents a groundbreaking evolution in portable desktop mixing technology, custom-engineered for synthesizer performers, volca collectors, modular Eurorack gearheads, live electronic musicians, and mobile content creators. Moving completely away from bulky, traditional studio mixers or cheap, unpowered sub-mixers that thin out your electronic instruments, this innovative kit acts as the perfect performance bridge. True to Korg’s legendary Nu:Tekt legacy, this unit arrives entirely as a DIY self-assembly kit—allowing you to build your own professional-grade hardware hub from scratch in a matter of minutes, with absolutely zero soldering or electronics experience required. Housed in an ultra-durable steel body frame, it packs a massive 6-channel input matrix capable of handling up to 10 audio signals into a compact, space-saving footprint, giving Malaysian musicians absolute tactile command over their dense hardware rigs in one streamlined space.

Main Features

The defining design triumph of the Korg NTS-4 is its High-Density Performance-Focused Signal Routing Architecture paired with Dual Stereo FX Processing. Outfitted with four stereo and two mono minijack channels, it allows you to easily blend multiple desktop synths, drum machines, and grooveboxes simultaneously. The mono inputs feature an internal, switchable attenuator jumper that shifts between line level and high-voltage modular levels for seamless Eurorack integration. To elevate live sets, the NTS-4 comes loaded with two independent stereo effects engines—providing per-channel Send FX (delay, reverb, chorus) alongside a master Total FX section (filters, drive, compression) to glue your final mix together beautifully.

Usage Scenarios

• All-In-One Volca & Synth Mixing: Connect up to four stereo Volca units or NTS instruments alongside two mono synthesizers into a single, perfectly balanced performance hub.
• Direct Eurorack Modular Integration: Toggle the internal hardware jumper pins before assembly to safely run hot, high-voltage Eurorack modular signals straight into the mono mixer channels.
• Pre-Fader Cue Auditioning: Use the dedicated channel CUE buttons and headphone monitoring system to silently check your synth patches backstage or mid-performance before unmuting them to the crowd.
• High-Fidelity Live Streaming & Recording: Connect the mixer via USB-C to your smartphone, tablet, or computer to stream or record pristine 48 kHz / 24-bit digital audio of your performance instantly.
• DAW-to-Hardware MIDI Bridging: Receive digital MIDI clock and notes from your laptop DAW over USB and route them cleanly through the physical MIDI OUT port to sequence your desktop hardware gear.

Features

• Comprehensive 6-channel mixer matrix accommodates 4 stereo inputs and 2 mono inputs to manage up to 10 audio signals simultaneously.
• 100% Solderless DIY kit assembly architecture offers a highly rewarding, straightforward hands-on build process using prefabricated PCBs and mechanical components.
• Dual independent stereo effects engines yield 7 per-channel Send FX options and 10 master Total FX processing suites (filters, drive, compression).
• Internal hardware attenuator jumper pins switch between line level and modular level to safely accept Eurorack signal inputs.
• Dedicated physical CUE and MUTE performance buttons on every channel provide instantaneous sound isolation and arrangement breaks.
• High-speed USB Type-C interface terminal functions as a high-fidelity 48 kHz / 24-bit digital audio interface and MIDI bridge.
• Rugged, heavy-duty steel chassis frame provides rock-solid desktop stability that won’t slide around when fully loaded with cables.
• Professional 1/4″ phone jack main outputs ensure low-noise, reliable analog connectivity straight to live venue PA systems or monitors.

Technical Specs

• Device Instrument Profile: Compact DIY User-Assembled Performance Desktop Mixer Kit
• Assembly Requirements: Self-assembly format using included plates and boards (No soldering or specialized tools required)
• Total Operational Signal Input Capacity: Supports up to 10 Audio Signals simultaneously
• Analog Input Channels Configuration: 6 Channels Total (4 x 1/8″ / 3.5mm Stereo Minijacks, 2 x 1/8″ / 3.5mm Mono Minijacks)
• Input Attenuation Multi-Level Matrix: Switchable via Internal Jumper Position (Standard Line Level / Eurorack Modular Level)
• Primary Analog Output Terminals: 2 x 1/4″ Unbalanced Phone Jacks (Main L/Mono, R Outputs)
• External FX Processing Loop Terminals: 1 x 1/8″ Stereo Send Jack, 1 x 1/8″ Stereo Return Jack
• Personal Monitoring Terminal Nodes: 1 x 1/8″ TRS Stereo Headphone Output Jack
• Digital Core Audio Interface Specs: 24-bit resolution operating at a 48 kHz sampling frequency
• Digital Interfacing Backbone: 1 x USB Type-C Port (Handles Audio Interface, USB-MIDI Data, and Power)
• Hardware MIDI Routing Nodes: 1 x Dedicated physical 3.5mm TRS MIDI OUT Terminal node
• Tactile Interface Panel Control: 10 x Rotary Pots (Level, Send, Pan on mono channels, Master settings), Dedicated CUE and MUTE buttons per channel
• Power Requirement Specifications: DC 5V / 500 mA via USB-C connection or standard AC 9V adapter (sold separately)
• Chassis Structure Layout: Solder-free structural steel body enclosure plates with component boards included

CK Music Staff Recommendation

The synthesizer gearheads and electronic live performers at CK Music consider the Korg Nu:Tekt NTS-4 mixer kit to be the exact missing link modern desktop musicians have been begging for. Don’t let the word “DIY kit” or “self-assembly” scare you away—you do not need a soldering iron or any technical electronics knowledge. Korg designed this beautifully so that the prefabricated circuit boards and steel housing components simply clip together in a few minutes, making it an incredibly fun and educational afternoon project. Once assembled, the steel body has serious weight to it, meaning it sits rock-solid on your production desk even when packed with cables. The NTS-4 allows you to clean up your workspace by running mini-jacks for your Volcas and synths while giving you pro 1/4″ mains out to your studio monitors. The per-channel DJ-style CUE buttons are a massive win for live transitions, and the dual effects engines sound absolutely phenomenal. For anyone running a hardware-heavy live setup, building this mixer is a no-brainer investment.