KORG

KORG NTS-4 Analog Performance Mixer DIY Kit

A 6-channel analog mixer that folds volcas, modular gear, and desktop synths into one Eurorack-friendly hub with dual send effects

$249.99*
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*Price sourced from Amazon.com. Last updated:Jul 29, 2026.Price and availability are subject to change.

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Overview

The KORG NTS-4 is a 6-channel analog performance mixer aimed at players who build sprawling setups from small parts. Four stereo channels and two mono channels give it room to host volca units, NTS instruments, desktop synths, and modular gear at once, and every channel gets its own LEVEL, SEND, MUTE, and CUE controls. That per-channel layout is the heart of the pitch: it turns a tangle of standalone boxes into a single instrument you can perform on with both hands. The two mono inputs deserve special attention, since a switchable line/modular attenuator lets them take Eurorack-level signals without adapters, and dedicated SEND and RETURN jacks make inserting outboard effects straightforward.

Effects run on two fronts. Two independent stereo SEND engines cover delay, ping pong delay, hall reverb, slap reverb, and chorus per channel, while a master TOTAL FX stage applies LPF, HPF, isolator, flanger, phaser, decimator, drive, distortion, compressor, and limiter to the whole mix. On the ownership side, the NTS-4 belongs to Korg's Nu:Tekt series and arrives as a DIY kit that assembles in minutes, housed in a solid aluminum chassis meant to stay put in a fully patched rig. Connectivity is broad: high-resolution USB-C audio feeds DAWs, computers, and mobile devices, USB MIDI passes through to the hardware MIDI OUT, and standard 1/4" main outputs connect to monitors and live systems.

Key Features

6 Channel Analog Mixer: Four stereo and two mono channels let you combine volca units, NTS instruments, desktop synths, and modular gear into a single streamlined setup. Each channel includes dedicated LEVEL, SEND, MUTE, and CUE controls for full hands-on performance control.

Eurorack-Compatible Mono Inputs: Switchable line/modular level attenuator on both mono inputs supports Eurorack-level signals without adapters or additional hardware. Dedicated SEND and RETURN jacks make it easy to add external effects to the signal chain.

Dual Send FX + Master Total FX: Two independent stereo SEND effects engines offer delay, ping pong delay, hall reverb, slap reverb, and chorus per channel. A master TOTAL FX section adds LPF, HPF, isolator, flanger, phaser, decimator, drive, distortion, compressor, and limiter across the full mix.

Record, Stream, and Connect: High-resolution USB-C audio integrates directly with DAWs, computers, and mobile devices for recording and streaming. MIDI received over USB routes to the hardware MIDI OUT to control external gear. Standard 1/4" main outputs connect to studio monitors and live systems.

NU:TEKT DIY Kit with Rugged Aluminum Chasis: Assembles in minutes as part of Korg's Nu:Tekt series. The solid aluminum body stays stable in fully patched setups and holds up to real-world performance and studio use.

Specifications

Brand
KORG
Model
NTS-4
Type
Analog Performance Mixer Kit
Channels
6 (four stereo, two mono)
Per-Channel Controls
LEVEL, SEND, MUTE, CUE
Mono Input Attenuator
Switchable line/modular (Eurorack-compatible)
Send FX
Two independent stereo engines: delay, ping pong delay, hall reverb, slap reverb, chorus
Master Total FX
LPF, HPF, isolator, flanger, phaser, decimator, drive, distortion, compressor, limiter
USB
USB-C high-resolution audio and MIDI
MIDI
USB MIDI routed to hardware MIDI OUT
Main Outputs
Standard 1/4"
Chassis
Rugged aluminum (Nu:Tekt DIY kit)

Frequently Asked Questions

Yes. It ships as part of Korg's Nu:Tekt DIY series and assembles in minutes, arriving as a kit rather than a fully built, ready-to-patch mixer.
Yes, on its two mono inputs. A switchable line/modular level attenuator handles Eurorack-level signals without adapters or additional hardware.
Two independent stereo SEND engines provide delay, ping pong delay, hall reverb, slap reverb, and chorus per channel, plus a master TOTAL FX section spanning filters, modulation, and dynamics.
Through high-resolution USB-C audio, which integrates with DAWs, computers, and mobile devices for recording and streaming. USB MIDI also routes to the hardware MIDI OUT.
Six total: four stereo channels and two mono channels, letting you combine volca units, NTS instruments, desktop synths, and modular gear in one setup.
Its solid aluminum chassis is designed to stay stable in fully patched rigs and hold up to real-world performance and studio use.