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Description

The MXR MX-104 Block Distortion +, produced between 1975 and 1984, is a classic gem that graced the pedalboards of legends like Randy Rhoads and Bob Mould. This pedal is renowned for its ability to deliver a vintage germanium-infused distortion that can seamlessly transition from a gentle overdrive to a snarling fuzz monster. Its simplicity is its strength, with two straightforward knobs—Output and Distortion—that allow you to dial in the perfect tone with ease, whether you’re aiming for a subtle boost or a full-on sonic assault.

Designed for those who appreciate the rich, warm textures of vintage gear, the MXR MX-104 Block Distortion + is perfect for anyone looking to capture the iconic tones of the late '70s and early '80s. Its rugged, compact design ensures it can withstand the rigors of both studio and stage, making it a reliable companion for every guitarist. The pedal's innate ability to enhance the natural sound of your guitar means your unique playing style always shines through, making it a versatile addition to any setup.

If you're searching for a pedal that offers more than just distortion, the MXR MX-104 Block Distortion + is a must-have. It's not just about the fuzz; it's about capturing the spirit and essence of a musical era that continues to inspire artists today.

Key Features:

  • Vintage distortion circuit from 1975-1984
  • Germanium diode-based clipping for warm, saturated tones
  • Simple interface with Output and Distortion controls
  • Iconic sound used by renowned musicians
  • Durable, compact design suitable for road use

Owner's manual

MXR MX-104 Distortion + (Block Logo - 1975/1984) User Manual

Product specs

Brand MXR
Model MX-104 Block Distortion +
Finish Yellow
Year 1975 - 1984
Made In United States
Categories Distortion Pedals
Pedal Format Standard

FAQs

What kind of distortion does the MXR MX-104 Block Distortion + produce?

The MXR MX-104 Block Distortion + delivers a classic, warm distortion with a vintage feel, thanks to its germanium clipping diodes. It's known for its smooth, creamy sustain and is ideal for classic rock and early metal tones.

Is the MXR MX-104 Block Distortion + suitable for both rhythm and lead guitar playing?

Yes, the MXR MX-104 Block Distortion + is versatile enough for both rhythm and lead guitar playing. It provides a rich, harmonic distortion that enhances power chords and solos alike.

Can the MXR MX-104 Block Distortion + be used with both tube and solid-state amplifiers?

Absolutely, the MXR MX-104 Block Distortion + works well with both tube and solid-state amplifiers, offering consistent performance and tone enhancement across different amp types.

What type of power supply does the MXR MX-104 Block Distortion + require?

The MXR MX-104 Block Distortion + operates on a 9-volt battery or can be powered using a standard 9-volt DC power adapter, making it flexible for various pedalboard setups.

How does the MXR MX-104 Block Distortion + compare to modern distortion pedals?

The MXR MX-104 Block Distortion + offers a vintage distortion tone that is less aggressive than many modern pedals, focusing on smooth sustain and harmonic richness rather than high-gain crunch.

Reviews

PROS

  • Legendary circuit used by icons like Jerry Garcia and Bob Mould

  • Durable enough to survive extreme conditions, like mud and rain

  • Provides classic and creamy distortion tones with a hint of fuzz

  • Captures a wide range of sounds and styles, from classic rock to punk

  • Maintains the character of different guitar types, from Les Pauls to Strats

  • Vintage models offer unique mojo and distinct sonic warmth

  • Great for achieving Marshall-type lead sounds without excessive volume

  • Highly rated for its simplicity and effectiveness in tone production

CONS

  • Lacks a tone knob, limiting tonal flexibility for some users

  • Not suitable for heavy metal enthusiasts seeking high-gain distortion

  • Unity gain issue can be slightly annoying for some players

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about MXR MX-104 Distortion + (Block Logo - 1975/1984).

Build quality

  • The MXR Distortion Plus from 1980 is noted for its tank-like build and surprising weight for its size, although the internal foam often disintegrates over time.

    Source

Features and functionality

  • This pedal lacks an LED and 9V adapter, requiring battery access through the back, which some users find inconvenient.

    Source

Use cases and applications

  • Known for its diode clipping, the pedal excels with high-gain Marshalls and is a must for Randy Rhoads fans, delivering a driving, snarling tone.

    Source

Comparisons

  • The Ross Distortion is preferred by some for its less fizzy, crunchier sound compared to the Distortion Plus.

    Source

Mods and upgrades

  • Some enthusiasts build their own versions, comparing circuits with slight diode and capacitor differences to models like the DOD 250 and Ross Distortion.

    Source

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Artist usage

Add artist
See how Clay Parton uses MXR MX-104 Distortion + (Block Logo - 1975/1984)

Clay Parton

Singer, Guitarist

Duster

...
Verified via Photo

Clay Parton confirms the use of the MXR MX-104 Block Distortion + 1975 - 1984 by stating in an Instagram post by user @thisisduster that the pedal located at the top left is "a MXR MX-104 rehoused in broken organ parts," as part of the fuzz sound used on the track "Stratosphere."

Album Usage

The MXR MX-104 Distortion + (Block Logo - 1975/1984) has been featured on the following albums:

Genre Usage

Based on how artists on Equipboard use this gear, it is most commonly found in the following genres.

Used With

Based on how musicians on Equipboard use MXR MX-104 Distortion + (Block Logo - 1975/1984), it is most commonly used with the following gear.

DOD FX56 American Metal
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1

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