NU-X MG-50Li Versatile Guitar and Bass Modeler

Amazing tone, classic design
MG50LI DARK BLUE -
NU-X MODELER PROFILER MULTI FX PEDAL DARK BLUE
dark blue model new 2026

The MG-50Li stands as NUX’s flagship multi-effects processor for guitar and bass, a formidable fusion of two core technologies: TSAC-4K white-box physical modeling amps and DeepImage profiling amp models. Its streamlined design, intuitive interface, and pristine tones invite players into a realm of sonic exploration.

Encased in aluminum alloy, featuring six robust footswitches and a high-definition LCD, the MG-50Li is a timeless instrument, ready for any stage or studio. Crafting your signature sound has never been more fluid.

FEATURES:

TSAC-4K white-box physical modeling algorithm delivers astonishingly realistic amp sims and FX.
Supports NUX Image DeepImage profiling, allowing users to capture any amps pedals.
LR Cyber IR engine delivers stereo cabinet emulations with adjustable Microphone, Position, and Distance parameters.
2 effect chains with up to 2 amps 4 cabs (LR Cyber IR).
Combines up to 14 simultaneous effects blocks with ultra-flexible routing options.
Exceptional sound quality with 24-bit ADDA, 32-bit floating-point processing, and 48 kHz sampling rate.
5-inch high-definition color LCD display.
NUX Audio App control (Mobile, WinMac).
Dual SendReturn loops let you route your favorite pedals.
Built-in USB audio interface enables straightforward sound customization, patch management, and computer-based recording.
Built-in rechargeable battery offers convenience for practice and performance.
Battery lifetime: 6 hours.

SPECIFICATIONS:
AnalogDigital: Digital
Sampling Rate: 48 kHz 32 bit
System Latency: Minimum 3 ms
Presets: 96 Factory presets, 201 User presets
Number of EFX Blocks: 14 (NG, CMP, EFX, AMP, EQ, SR, IR, DLY, RVB, WAH, MOD, PL)
Effect Chain: Serial, Parallel, Split
Impulse Responses: 42 Factory Cyber IRs (LR), 60 User IRs (LR)
Amps: 28 White-box Modeling Amps, 30 DeepImage Amps, 30 User Amps
USB: USB-C (24-bit 48 kHz USB Audio, USB MIDI [PC Editor], Firmware Update)
Bluetooth: NBT-1 Bluetooth Module (included) with App Control
Expression Control: Yes (optional external EXP pedal or NMP-2 Lite footswitch)
Bypass Switching: Buffered Bypass
Software: NUX Audio Editor (PC), NUX Audio App
INPUTRETURN Impedance: 1 MO
AUX IN Impedance: 10 kO
OUTPUT LR Impedance: 1 kO
BALANCED OUTPUT Impedance: 440 O
SEND Impedance: 1 kO
PHONES OUT Impedance: 10 O
INPUT to OUTPUT LR Dynamic Range: 110 dB
Battery lifetime: 5 hours
Battery fully recharging time: 5 hours
Power Supply: 12V DC 1.5A (Center Negative)
Current Draw: 1400 mA
Dimensions (L x W x H): 393 x 210 x 72mm
Weight: 2.8 kg


Authentic Amps with tube-like response
The MG-50Li features our iconic TSAC-4K Amp Modeling (White-box Physical Modeling algorithm), which is twice as complex as that found in previous versions. This led us to design a new hardware platform with three DSPs: one dedicated to handling all effects, another to running the amp modeling algorithm, and the third to supporting the split amp simulation functionality. Now we’ve even split Amp Modeling into separate preamp and power amp simulations. This means you can select different power tube models to craft unique, creative sounds.

TSAC-4K White-box Amps

Power Amps
Deeplmage amps
NUX further expands tonal possibilities with our proprietary black-box technology: DeepImage! It delivers excellent, ultra-realistic amp tones by consolidating multi-layered simulations into a single cohesive sound. With DeepImage, guitarists can load their dream amps into the MG-50Li and enjoy playing anywhere.


LR Cyber IR

The MG-50Li features Cyber IR™ Technology — a true impulse response reproduction with an advanced algorithm that supports Microphone, Position, and Distance adjustments, providing stereo IR capabilities with ultra-low latency.

ParallelSerial effect chain with 14 effect blocks
Packing up to 14 simultaneous effect blocks and ultra-flexible dual-chain routing, the MG-50Li unlocks endless tonal possibilities. Musicians can customize the effects chain freely to dial in their dream tones.

Super high quality sound
With 3 powerful NXP® RT processors and premium 32-bit ADDA converters, the MG-50Li delivers super high quality sound with ultra-low system latency, ensuring a tight and fast response.


Built to be on stage
The MG-50Li features pro-grade IOs tailored for live use: two effect loops for your favorite pedals, stereo XLR outputs for direct mixer linking, and MIDI inout for seamless connection to your MIDI control gear.

5 hours of battery life
Designed for freedom, the MG-50Li includes a built-in battery that lets you play anywhere, anytime—no power supply needed. It couldn’t be simpler: just plug in and play!
Capture your favorite amps preamps
With the NUX IMAGE app and DeepImage technology, you can capture your favorite amps, preamps, OD and DIST pedals, then store their profiles directly on the MG-50Li—letting you bring all your go-to amps with you anywhere effortlessly. You can also craft incredible tones via the NUX IMAGE app by combining these captures with different EQ models and power amp tube models.

Profiling an amp with a loadbox(attenuator):
Profiling an ODDIST pedal:

Connection:
USB audio interface
As laptops continue to include fewer USB ports, users often rely on USB hubs or adapters, which can disrupt the plug-and-play experience and potentially cause conflicts. The MG-50Li also serves as a USB audio interface, minimizing setup time and freeing up space, allowing you to focus more on playing and creativity.

NUX Audio App control (Mobile, WinMac)
Patches can be edited directly from the front panel or through the NUX Audio app on your phone or computer for customization. Equipped with a high-definition color LCD display that stays readable even in bright daylight, the MG-50Li provides you with everything you need to dial in your sound and perform with confidence.