NUX Metal Core Deluxe MKII Hi Gain Distortion Pedal

Order your NUX Metal Core Deluxe MKII Hi Gain Distortion Pedal from AMS and enjoy 0% Interest Payment Plans, Free Shipping, Free Extended Warranty & 45 Day Money Back Guarantee.
The NUX METAL CORE DELUXE MKII is a high gain distortion preamp pedal. It has 3 distinctive high gain amp models that you can select via the 3-way toggle switch.
You must allow Youtube cookies in order to view videos. You can set your cookie preferences in the Preference Center by selecting the Cookie Settings button.

Frequently Bought Together

+ + =
Current item:
Have questions, found a better price? Talk to a sales specialist! 800-319-9043
Product Highlights

Product Description

Are you looking for an amp-in-a-box that will let you access a huge range of tones? The NUX METAL CORE DELUXE MKII is your answer! This high gain preamp pedal has 3 amp models that will allow you to gain superior sound control and expression. The Duo Rect, Fireman and VH4 models will open up new sonic possibilities that guitarists everywhere will love.

You can easily switch between the models using the 3-way toggle switch. And the NUX METAL CORE DELUXE MKII makes it easy to dial in the sound you desire. In just a few seconds you can switch between pristine, high-gain, hard rock, and metal. You will have the ability to create the sound of your dreams and take your music to the next level. With the NUX METAL CORE DELUXE MKII, you get all the features of an amp in a box of a high-quality pedal. It doesn't get much better than that!

The Duo Rect is based on the Mesa Boogie Dual Rectifier. The familiar 90’s American metal sound with the iconic metal front panel that reminds you of countless classic records, from metal to punk to grunge, including Metallica, Tool, Korn, Soundgarden, Foo Fighters and Blink 182.

The Fireman is based on the Friedman BE-100, the man behind the signature tones of rock icons including Eddie Van Halen, Steve Stevens, and Jerry Cantrell. For over a decade the "BE" circuit has been hailed as the epitome of British tone.

The VH4 is based on the Diezel Amp of the same name, which revolutionized the industry with its 4-Channel and individual inserts design. This amp covers a wide range of tones. It has a thick, articulate and “meaty” sound, that is loved by many players. And because of its flexibility, the VH4 is used in many recording studios all over the world.

Ampless & Impulse Responses

Impulse Responses play an important parts when it comes to going ampless, as it gives you that cabinet sound to complete your tone quest. Each of the included amps on the METAL CORE DELUXE MKII have a matching IR to go sonically along with it.

You can load your own favorite 3rd party IRs via the MetalCore editing software. Please visit the product page and download the editor (METAL CORE DELUXE MKII supports 512 samples IR resolution.). The MetalCore editing software will convert the IR file automatically, just make sure that your IR file is in WAV format.


The USB-C port is for firmware updates and connecting to the MetalCore editing software (see below). To update the pedal, connect a USB cable to your PC and hold the footswitch to boot-up the device and to enter the DFU (Device Firmware Update) mode. Once connected you can perform firmware updates using DFU updater software.

MetalCore editing software:

You can tweak the parameters and load 3rd party IRs through MetalCore editing software. Connect the USB cable to the pedal and PC, open the editing software, and that’s it. Make the tone all about you. The METAL CORE DELUXE MKII offers you 5 user slots to load 3rd party IRs. (4~8) It supports 512 samples resolution.

EFX Mobile APP with OTG connection.

If you don’t have a computer, you can edit the pedal on the go for live applications with the EFX Mobile APP. (For iOS, you must use a Lightning to USB adaptor. While some Type-C to Type-C can work with Android, using an OTG adaptor, can ensure that most Android systems will work with METAL CORE DELUXE MKII properly.

Footswitch & FS Indicator; Engage/Disengage the IR

With the pedal not connected via USB, hold the footswitch while plugging in the power supply to boot-up the pedal. If the LED indicator flash GREEN 3 times, the IR is engaged. If the LED indicator flashes RED 3 times, the IR is disengaged.

NUX Metal Core Deluxe MKII Hi Gain Distortion Pedal Features

  • 3 high gain Amp Models in a compact enclosure.
  • Duo Rect: Based on Mesa Boogie Dual Rectifier.
  • Fireman: Based on Friedman BE-100.
  • VH4: Based on Diezel VH4.
  • IR out for amp-less application. (512 samples resolution)
  • True-bypass.
  • Parameters auto saving into 3 models.
  • Low power consumption. (less than 120mA)
  • TSAC-HD modeling offers realistic playability and response.

warning WARNING: Cancer and Reproductive Harm -
See all items from NUX

Shop Similar Models

Helpful Info about the Manufacturer
Phone:  626-800-7466 Warranty:  5 Year Limited Warranty

Product Specifications

NUX Metal Core Deluxe MKII Hi Gain Distortion Pedal Specifications

  • Input Impedance: 1MΩ
  • Output Impedance: 1kΩ
  • Dynamic Range: 104 dB
  • DSP Processing: 48KHz / 32-bit
  • A/D D/A Sampling Rate: 48KHz / 24-bit
  • Power: 9V DC (Negative tip, Optional ACD-006A adapter)
  • Current Draw: less than 120mA
  • Dimensions: 122(L) X 72(W) X 47(H)mm

Customer Reviews

Rating distribution
  rating ratings

of customers
this product
of reviews

review date:
customer name:
Product Rating:
Recommend to a friend?
Verified Buyer:
review text:

review date:
customer name:
Product Rating:
Recommend to a friend?
Verified Buyer:
review text:
Sort by:

review date:
customer name:
Product Rating:
Recommend to a friend?
Verified Buyer:
review text:
customer service response: response date:
merchant response text:

Related Items

Manuals & Docs