NUX MG-300 MKII Guitar Multi-FX Pedal

The MG-300 MKII builds on the legacy of the original MG-300, retaining its beloved tone-shaping tools while adding even more power and flexibility. From expressive overdrives and transparent compressors to rich delays, immersive reverbs, and detailed EQs, this unit delivers an all-in-one solution for guitarists of all levels.

Full Suite of Effects
With a wide range of built-in effects, the MG-300 MKII covers every sonic need:

1 Noise Gate

2 Compressors

13 Overdrive/Distortion types

1 Touch Wah

2 EQs

14 Modulation effects

7 Delays

5 Reverbs, including the new Shimmer Reverb for ambient, ethereal textures

Advanced Impulse Responses
The MG-300 MKII offers 36 built-in IRs:

25 Guitar cabs

8 Bass cabs

3 Acoustic IRs

Fine-tune your tone with:

4 Microphone models

3 Mic positions

24 user-loadable IR slots for 3rd-party IRs

Whether you're chasing vintage warmth or modern precision, the IR engine reproduces amp and cabinet tones with stunning realism, seamlessly integrating with the amp models and effects.

Block Switching for Creative Control
In EDIT mode, long-pressing the CMP, EFX, or RVB blocks allows you to swap their functions. This flexible architecture empowers you to build custom signal chains and unlock endless tonal possibilities.

Phrase Looper & Drum Machine
Enhance your performance or practice sessions with the built-in phrase looper and drum machine:

Looper Time: 60 seconds (Stereo) / 120 seconds (Mono)

Drum Machine with auto tempo detection—it adjusts to your playing speed in real-time for perfectly synced backing rhythms

Key Specifications
TSAC-HD white-box amp modeling for lifelike tube amp response

QuickTone™ editor software for easy patch creation and IR management

Pro Scene Selection: Instantly switch between 3 scenes within a preset

USB-C connectivity for audio interface use and firmware updates

TRRS headphone jack, live-streaming features, and dedicated mic input with noise gate

Sampling rate: 48kHz

A/D conversion: 32-bit

Frequency response: 20Hz–20kHz (+1dB)

THD+N: <1%

Dynamic range: 106dB

Input/Output: +8 dBu

Power: 9V DC (adapter not included)

Compact, lightweight, and road-ready design