MXR Custom Audio Electronics MC401 Boost/Line Driver

£119.99

On the menu for January 2026 are the MXR Guitar Pedals, freshly added and carefully selected. These New units are available to order online with fast, secure delivery from trusted UK retailers. Read on for full details, specifications, demos, videos, reviews, and the best places to buy the MXR Guitar Pedals today.


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Description

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On the menu for January 2026 are the MXR Guitar Pedals, freshly added and carefully selected. These New units are available to order online with fast, secure delivery from trusted UK retailers. Read on for full details, specifications, demos, videos, reviews, and the best places to buy the MXR Guitar Pedals today.

The MC401 Boost/Line Driver from MXR is a potent volume pusher, taking your guitar's signal up by a significant notch! With up to 20dB of boost on tap, this powerful pedal raises the overall output of your rig, serving as the perfect driver for solos.

However, it's not just a one-trick-pony. While it may only boast one control, the MC401 also adds some crisp top-end to your tone as well as more mid-range punch. This offers a sound with far more definition and brilliance, which can help to compensate for the signal loss caused by large and complex rigs.

Place this pedal in your effects loop and you'll achieve a pure, unbridled kick of extra volume. However, this unit can also shine when used in conjunction with overdrive or distortion pedals, and when placed before them you can achieve a more saturated and harmonically-rich tone. Whichever way you decide to route the MC401, you'll always find it useful!

Specifications

  • Input Impedance: 1 kΩ
  • Output Impedance: 150 Ω
  • Nominal Input: -22 dBV
  • Output Level: -22 dBV
  • Boost Gain Range: 20 dB
  • Noise Floor: >95 dB
  • Bypass: True Hardwire
  • Current Draw: 1.5 mA
  • Power Supply: 9 volts DC
  • Dimensions: 5.8" x 4.8" x 3"

Additional information

Weight 1 kg

Brand

MXR

MXR is a renowned manufacturer of guitar effects pedals and audio electronics, recognized for their classic designs and high-quality sound. Established in the 1970s, MXR has played a significant role in shaping the landscape of effects pedals, producing iconic units that have become staples in countless musicians’ rigs. The company’s pedals are celebrated for their rugged construction, intuitive controls, and versatile tones, making them popular among guitarists and bassists across genres.

MXR’s product lineup encompasses a wide range of effects categories, including distortion, delay, modulation, and more. Some of their most notable pedals include the Phase 90 phaser, the Dyna Comp compressor, and the Carbon Copy analog delay, all of which have earned legendary status among players for their distinctive sound and reliability. With a legacy of innovation and a commitment to quality, MXR continues to be a respected name in the world of guitar effects, inspiring musicians to explore new sonic possibilities and express themselves creatively.

Category

Guitar Pedals

Tags

Boost

Distortion

Distortion pedals take your clean guitar signal and transform it into something bigger, bolder, and full of attitude. By clipping the waveform, they add sustain, bite, and aggression, creating that thick, compressed tone that’s powered rock music for decades. From the growling crunch of classic hard rock to the tight, saturated roar of modern metal, distortion is all about energy and presence. It gives every note weight and authority, pushing your amp to its limits and beyond.

There are countless flavours of distortion, each with its own texture and edge. Some sound smooth and creamy, others raw and gnarly like tearing fabric. It’s the sonic equivalent of turning up the heat until the sound cooks — rich, sizzling, and perfectly seasoned to taste. Whether used for rhythm muscle or soaring leads, a good distortion pedal doesn’t just add volume; it adds personality, grit, and that unmistakable sense of power under your fingers.

New

This is brand new, fresh in, and a UK warranty is included. New Gear always comes from trusted UK music retailers.

Overdrive

Like a golden layer of melted cheese — warm, gooey, and just put it all over. It adds just the right amount of richness and grit, turning a clean signal into something smooth and savoury. Designed to mimic the natural breakup of a tube amp pushed to its sweet spot, overdrive delivers the flavour of classic rock and blues in every bite. From creamy mid-gain warmth to crisp edge-of-breakup sparkle, it’s the comfort food of guitar tone — simple, satisfying, and endlessly versatile. Whether it’s a mild crunch or a full-bodied roar, overdrive is where good taste begins.

used

Volume

Volume pedals control the output level of a guitar signal using a foot-operated treadle. They allow smooth volume swells, dynamic control during playing, and easy muting between songs. Volume pedals can be placed at different points in the signal chain to either control overall loudness or adjust gain and drive behaviour when positioned before distortion or overdrive pedals.

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