SKU: 67347403542

NUX MG-400 Guitar Modelling Processor Multi Effects Pedal

Sale price$382.50 Regular price$425.00
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Description

NUX MG-400 Guitar Modelling Processor Multi Effects PedalBEST VALUE MODELLER The NUX MG 400 is a value packed modeller akin to his little brother, the MG 300. MG 400 houses 2 powerful DSP chips for high definition White Box Amp Modeling algorithm (TS AC HD) and Core Image post effects. Since releasing the MG 300, people have been blown away by the sound and playability, not to mention the ease of use tone tweaking and intuitive interface. And now, the MG 400 builds upon the MG 300 feature set moveable

BEST VALUE MODELLER

The NUX MG-400 is a value packed modeller akin to his little brother, the MG-300. MG-400 houses 2 powerful DSP chips for high-definition White-Box Amp Modeling algorithm (TS/AC-HD) and Core-Image post-effects. Since releasing the MG-300, people have been blown away by the sound and playability, not to mention the ease-of-use tone tweaking and intuitive interface. And now, the MG-400 builds upon the MG-300 feature set moveable signal blocks, 12 IR COLLECTION slots, flexible P.L block with MIN & MAX parameter setup, abundant SYSTEM MENU, and physical MASTER volume knob, MG-400 is now the best value modeller for the money.

[TSAC-HD]

WHITE-BOX AMP MODELLING

Same Amp Modelling Algorithm as MG-300, for easy Tone Tweaking:

The White-box Amp Modelling & Pre-Efx algorithm offers realistic playability and analog-chaos response.

The concept of "Chaos makes the muse" perfectly applies to the analogue circuit. When you tweak the knob, it affects itself as well as other parameters. For a linear digital system, the parameter is independent. The white-box algorithm offers real-time feedback, increment-by-increment. NUX TS/AC-HD replicates the same playability most guitarists crave in a real tube amplifier.

2 more amps have been added in Firmware V2.1.1!

VIVO

L STAR

512 samples IR resolution and USER slot with each patch.  (additional 12 IR COLLECTION slots)

IMPULSE RESPONSE

The MG-400 includes multiple impulse response of 512 samples each. You can load 3rd party IR files using our NUX QuickTone edit software (support up to 48kHz sample rate). The included 25 guitar cabinet IRs combine 4 classic microphones with 3 mic positions to allow beginners a quick and easy way to jump into the multi effects experience. Also included are 8 bass cabinet IRs and 3 acoustic guitar IRs, giving you the ability to play bass guitar on MG-400 or use electric guitar to simulate acoustic guitar sound with acoustic guitar IRs.

10 INDEPENDENT FLEXIBLE BLOCKS

You can move signal blocks freely on the MG-400 and/or QuickTone editing software. Set the PATCH LEVEL block in front of AMP to swell the volume. Put DELAY block in front of gain stage to create grooving riffs. There are lots of tone creations with the flexible block routing.

Since Firmware V2.1.1, you can hold the signal block to switch: CMP<-->EFX , EFX<-->MOD , MOD<-->EFX, RVB<-->DLY. Therefore you can stack 2 Delays at the same time, or stack the CMP or 2 EFXs (OD/DIST) at the same time!

NG, CMP, EFX, AMP, IR, EQ, MOD, DLY, RVB, P.L | 10 independent moveable signal blocks.

An intuitive user interface with a colorful LCD lets you get rid of reading manuals. Keep it Simple!

2.8" COLOR LCD

2.8" 320*240 color LCD with intuitive UI.

SCENE FUNCTIONALITY

Use SCENES to engage/disengage blocks with either CTRL footswitch.

You can assign CTRL1 or CTRL2 to trigger the SCENE Functionality. Each preset has 3 scenes, which are snapshots within a preset. This is a powerful function for live gigs. Each SCENE can engage/disengage signal blocks freely, and it retains the DELAY / REVERB trails when you disengage them with SCN CTRL.

The MG-400 supports NUX Phrase Loop Synchronization with Rhythm. You can play the rhythm then record your phrase loop. MG-400 will automatically beat match the phrase to fit the current rhythm BPM.

*Choose either STEREO / MONO looping. (Stereo is 30 seconds, mono is 60 seconds.)

Two Recording Modes

*NR = Normal Recording works as regular loop function, while you press CTRL1(LOOP) footswitch, it starts to record the phrase loop.

*AR = Auto Recording will stand by while you press CTRL1(LOOP) footswitch, once you hit the strings, it will start to record your phrase loop.

Jam ( Drum & Looper )

Editor Software

You can download the QuickTone editor from the MG-400 product page. An intuitive interface is provided for tweaking parameters, dragging block order, setup SCN, save patches, load patches, export patches, load IRs, set up USB routing and CTRL SETTING; all by simply using QuickTone.

USB Audio Interface

For home studio and silent practice, the MG-400's USB audio capabilities makes it the Swiss Army Knife of guitar audio interfaces. Connect it via USB to your PC, and you can record tracks, re-amp, and even do live-streaming with the MG-400.

In Normal mode, you can choose Loopback to play the playbacks from PC when doing a live stream.

Re-amp: MG-400 offers Dry Out and Re-amp recording applications.

Top Class custom presets and IR Packs. Supported by years of experience on stage and behind the scenes, Choptones, since 2014 offers a wide range of custom patches for most of the device available on the market. Choptones' guitar sound shaping professional proposal make possible for every guitar / bass player to get the sound more powerful and functional for every kind and style of playing.

Highlights

2.8" 320*240 color LCD with intuitive UI.

NG, CMP, EFX, AMP, IR, EQ, MOD, DLY, RVB, P.L | 10 independent moveable signal blocks.

White-box Amp Modelling & Pre-efx algorithm offers realistic playability and analog-chaos response.

512 samples IR resolution and USER slot with each patch. (additional 12 IR COLLECTION slots)

Electric guitar amp models, bass amp models, and acoustic simulation IRs with related acoustic amp models.

Input trim under SYSTEM MENU.

5 output modes with global 3 band EQ for quick tone tweaking. (Besides STUDIO DIRECT, others will disengage IR signal as default.)

PARA. FOLLOW function can track your effect tweaking habits.

USB recording interface, firmware update, QuickTone edit software.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 67347403542

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Elbert Smith
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★★★★★ 5
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Reviewed in the United States on March 24, 2026
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Halo
Lake Worth, US
★★★★★ 5
heavy duty quality
Color: Georgia Bulldogs
Bought for friends. They have a dog that will gnaw and chew on anything. This was very durable and lasted with constant chewing and playing.
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Reviewed in the United States on August 6, 2025
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Michael
Natrona Heights, US
★★★★★ 4
Heavy
Color: Texas Longhorns
It’s a tough and heavy toy. Probably best for dogs over 10 lbs.
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Reviewed in the United States on April 21, 2026
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Amazon Customer
Alexandria, US
★★★★★ 5
Great quality
Color: Michigan Wolverines
Holds up very well
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Reviewed in the United States on October 12, 2025
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clayton
Grantham, US
★★★★★ 3
only 30 min of play and now its starting to fade
Color: Alabama Crimson Tide
its a great SOLID toy. but the design/stamping fades off almost immediately. i thought it was apart of the toy itself.
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Reviewed in the United States on December 31, 2024

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