NUX MG-400 Modeling Guitar and Bass Processor – White Box Amp Modeling IR Loader Looper India

The NUX MG-400 Modeling Guitar Bass Processor delivers professional white box amp modeling technology, flexible IR loading and complete multi-effects processing in one powerful and portable unit. Built for guitarists and bassists who demand authentic classic amp tones, flexible signal routing and complete practice and performance tools, the MG-400 covers every need from home practice to stage performance and studio recording with ease and confidence.

White Box Amp Modeling Technology NUX MG-400 Modeling Guitar Bass Processor

The NUX MG-400 features white box amp modeling technology with amp models inspired by classic sounds. White box amp modeling goes beyond simple digital copying of amp voicings — it recreates the internal circuit behaviour and dynamic response of classic amplifiers for a more authentic, organic and inspiring playing experience. The amp models on the MG-400 respond naturally to your picking attack, volume control and playing dynamics just like a real amplifier.

512 Sample IR Resolution for Authentic Tone

The NUX MG-400 features cabinet, microphone and acoustic IRs at 512 sample resolution for authentic tone replication. The high resolution IR processing recreates the exact acoustic characteristics of real speaker cabinets, microphone placements and acoustic environments giving you studio quality cabinet tone in any setting. Whether you need electric guitar cabinet simulation, acoustic guitar emulation or microphone IR loading the MG-400 has you covered.

12 User-Loadable IR Slots

The NUX MG-400 provides 12 user-loadable IR slots for storing your favourite third party cabinet impulse responses. Load IRs from any third party source and combine them with the MG-400 amp models for completely customised and professional cabinet tone that matches your exact playing style and tonal preferences.

10 Movable Signal Blocks with Essential FX

The NUX MG-400 features 10 movable signal blocks with an array of essential effects including EQ, chorus, reverb, overdrive, distortion and more. Move signal blocks freely to create your ideal signal chain order and combine effects in any configuration for maximum creative and tonal flexibility. The 10 signal block architecture gives you complete control over every element of your tone from input to output.

Built-In Phrase Looper Drum Machine and Metronome

The built-in phrase looper, drum machine and metronome make the NUX MG-400 a complete practice and performance solution. Record loops and layer guitar or bass parts over realistic drum patterns while the metronome keeps your timing locked and consistent. The looper and drum machine combination is perfect for solo practice sessions, songwriting and live performance without any additional equipment.

QuickTone Editing Software

The NUX MG-400 includes QuickTone editing software for saving and customising presets on your Mac or Windows computer. QuickTone makes patch management, IR loading and effect editing simple and intuitive on a large screen for a complete and professional workflow. Connect via USB and manage your entire preset library with ease.

Color LCD Screen with Intuitive Design

The color LCD screen with intuitive design makes navigating the MG-400 fast and straightforward during practice and performance. Clear visual feedback shows your current patch, signal block status and parameter values for quick and confident editing in any lighting condition.

Complete Guitar and Bass Solution

The NUX MG-400 is a true dual instrument processor covering both guitar and bass in one unit. Electric guitarists get access to classic amp models and cabinet IRs. Bass players get dedicated bass amp modeling and bass cab IR support. Acoustic simulation via acoustic IRs gives electric guitarists realistic acoustic tone without needing a second instrument.

Also explore the NUX MG-300 Guitar Multi Effects Processor for a compact unit with 24 IR slots and Pro Scenes, the NUX MG-30 Multi Effects Amp Modeler for a professional floor processor with 1024 sample IR resolution and the NUX MG-101 Modeling Guitar Processor with TSAC-HD amp modeling — all available at The Guitar Collective.

For all guitar effects pedals and processors browse our complete Effects and Pedals collection at The Guitar Collective.

Also explore our full range of Electric Guitars and Bass Guitars at The Guitar Collective to find the perfect instrument to pair with your NUX MG-400 processor.

For official NUX product information QuickTone software download and firmware updates visit the official NUX website at nuxaudio.com

Getting Started with Your NUX MG-400 Modeling Guitar and Bass Processor

Step 1 – Connect your guitar or bass to the MG-400 input
Step 2 – Connect output to your amplifier PA system or headphones
Step 3 – Navigate patches using the color LCD screen
Step 4 – Select your preferred amp model and signal block configuration
Step 5 – Load your favourite third party IRs into the 12 user IR slots
Step 6 – Install QuickTone software for full preset management on your computer
Step 7 – Use phrase looper drum machine and metronome for practice and performance

Frequently Asked Questions About NUX MG-400

What is the NUX MG-400?
The NUX MG-400 is a professional modeling guitar and bass processor featuring white box amp modeling, 512 sample IR resolution, 12 IR slots, 10 signal blocks, phrase looper, drum machine, metronome and QuickTone software.

What amp modeling technology does the MG-400 use?
The MG-400 uses white box amp modeling technology with amp models inspired by classic sounds for authentic dynamic and organic amp response.

Does it work for bass guitar?
Yes the NUX MG-400 is a dedicated guitar and bass processor with dedicated bass amp modeling and bass cab IR support built in.

How many IR slots does it have?
The MG-400 provides 12 user-loadable IR slots for third party cabinet impulse responses.

Does it have a looper?
Yes the MG-400 includes a built-in phrase looper, drum machine and metronome for practice and performance.

What effects does it include?
The MG-400 includes 10 movable signal blocks with EQ, chorus, reverb, overdrive, distortion and more essential effects.

Does it include editing software?
Yes the NUX MG-400 includes QuickTone editing software for Mac and Windows for complete preset management and IR loading.

How does it differ from the NUX MG-300?
The NUX MG-400 features white box amp modeling technology, 512 sample IR resolution, 12 IR slots and a dedicated metronome while the NUX MG-300 features 25 amp and cab models, 24 IR slots, Pro Scenes and TRRS headphone output for live streaming.

Where can I buy the NUX MG-400 in India?
You can buy the NUX MG-400 Modeling Guitar and Bass Processor online from The Guitar Collective with delivery across India.

What’s in the Box

NUX MG-400 Modeling Guitar and Bass Processor
USB Cable
Power Adapter
User Manual