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NUX Metal Core Deluxe MKII High-Gain Preamp Pedal with IR Cab Sim

Modern high-gain tones that stay tight, clear, and mix-ready

The NUX Metal Core Deluxe MKII is an "amp-in-a-box" high-gain preamp built for players who want crushing distortion without the mush. From palm-muted precision to soaring lead sustain, it delivers a focused low end, aggressive bite, and the kind of definition that makes fast riffs sound bigger and cleaner - even at stage volume.

Features

  • 3 high-gain amp models: Switch between Duo Rect, Fireman, and VH4 voicings with a simple 3-way toggle for fast, usable tone shifts.
  • Full tone shaping: Gain and Master controls plus a 3-band EQ let you sculpt tight lows, cutting mids, and the right amount of top-end attack.
  • IR cab sim for ampless rigs: Go direct to a PA, interface, or FRFR with IR Out for a complete "amp + cab" style sound without needing a traditional amp.
  • Load your own IRs: Bring in favorite 3rd-party IRs via the editor, with 5 user slots available for quick recall.
  • USB-C connection: Edit parameters and perform firmware updates through USB-C.
  • TSAC-HD modeling: Designed to feel responsive and realistic under your fingers for better dynamics and pick attack.
  • True bypass: Keeps your signal clean when the pedal is off.

Advantages

  • Tight stops and cleaner chugs: The preamp-style design helps keep high-gain riffs punchy and controlled.
  • Board-friendly metal rig: One pedal can cover multiple heavy tones while saving space and setup time.
  • Instant direct solution: IR Out makes it easy to show up with a pedalboard and still deliver a finished, cab-simulated sound.

Benefits

  • Sound heavier without getting louder: Achieve thickness and saturation while staying articulate in a band mix.
  • Dial in faster: Model toggle + familiar EQ controls get you to the right sound in minutes, not hours.
  • Play with confidence anywhere: From rehearsals to fly dates to silent stages, your core tone stays consistent.

Specifications

  • Amp models: 3 (Duo Rect, Fireman, VH4)
  • IR support: Cab sim IR Out; supports 512-sample IR resolution; 5 user IR slots
  • Bypass: True bypass
  • Input impedance: 1M ohm
  • Output impedance: 1k ohm
  • Dynamic range: 104 dB
  • DSP processing: 48kHz / 32-bit
  • A/D and D/A sampling rate: 48kHz / 24-bit
  • Power: 9V DC (negative tip)
  • Current draw: less than 120mA
  • Dimensions: 4.80 in x 2.83 in x 1.85 in
  • Weight: 0.60 lb

Thank you for taking the time to read about the product on our site. If you ever have any questions or want to talk music, please text us at 814-371-5666.