NUX MG-400 Multi Effects Pedal bass/ guitar

The Nux MG-400 is a dual-DSP, user-friendly multi-effects processor designed for electric guitar, acoustic guitar, and bass guitars. It features TSAC-HD white-box amp modeling, 10 movable signal blocks, 3 scenes per preset, a built-in expression pedal, and a color LCD screen. 

NUX MG-400 Multi Effects Pedal, 30 Amp Modeling, 512 Samples IR, 10 Independent Moveable Signal Blocks, 36 Built-in Cabinet IRs, Real‑Time Interaction, Backup & Safety, 24 User-loadable IR Slots

About this item

A Powerful Dual-DSP Guitar And Bass Modele

 The NUX MG‑400 is a powerful dual-DSP guitar and bass modeler in a compact floorboard positioned to be "The Best Value Modeler" in the market. It features high-definition amp modeling, 10 flexible signal blocks, 3 scenes per preset, a built-in phrase looper, and USB recording/re-amping. With 512-sample IRs and an intuitive 2.8″ color LCD, it delivers studio-quality tone for practice, recording, or live performance.

Advance Amp Modeling & Focused Amp Models

TSAC‑HD white-box technology provides realistic tube-amp tones with responsive dynamics. Features 36 high‑quality amp models: 28 electric guitar amps, 3 acoustic amp models, and 8 bass amps.

Impulse Response (IR) Suppor

 Includes legendary preset cab IRs for wide range of uses plus the ability of supporting up to 12 3rd-party IR.

Block‑Style Effects & Routing

 10 independent moveable signal blocks (NG, CMP, EFX, EQ, MOD, DLY, RVB, etc.) for a more customizable signal chain.

Built-In Looper & Drum Machine

Record, overdub, and layer tones with dynamic drum backing tracks for building riffs, testing tones, or performing solo sets.

QuickTone Editor Support

 Edit amp models and effects, manage presets, load IRs, and configure USB‑C routing for recording or streaming.

Core Audio & Modeling FeaturesDual DSP Chips: Powers high-definition amp modeling and Core-Image post-effects.Guitar Models: 25 guitar amp models, 25 cabinet IRs (with 4 classic mics and 3 mic positions).Bass & Acoustic Support: Dedicated bass amp modeling with 8 bass cabinet IRs, plus 3 acoustic guitar IR simulations.IR Loader: 512 sample resolution with user slots for 3rd-party IR files via NUX QuickTone editing software.Movable Signal Blocks: Route and reorder effects, dynamics, and amp blocks freely in your chain

Hardware & Control InterfaceDisplay: 2.8-inch colorful LCD screen.

Expression Pedal: Controls volume or switches instantly to 4 distinct WAH types via long-press.

Footswitches: 3 main foot switches plus scene/tap controls for seamless preset and snapshot switching.

Connections: 1/4" guitar input, dual 1/4" unbalanced outputs, 1/8" auxiliary input, 1/8" headphone output, and USB-C port