MXR® Distortion+ Instruction Manual

1. Introduction

The MXR Distortion+ is a classic guitar effects pedal known for its distinctive distortion sounds. This compact unit is designed to deliver a range of tones from subtle overdrive to classic hard rock distortion. Its germanium-powered, soft-clipped distortion circuit has been a staple on countless recordings, offering a unique sonic character.

Key Features:

• Germanium-powered, soft-clipped distortion
• Classic 70s distortion
• Classic early ’80s hard rock tone
• Compact and durable design

2. Setup

Before connecting your MXR Distortion+ pedal, ensure your amplifier is turned off. This prevents any potential damage to your equipment.

Connections:

1. Connect your guitar to the INPUT jack on the right side of the pedal using a standard 1/4-inch instrument cable.
2. Connect the OUTPUT jack on the left side of the pedal to your amplifier's input using another 1/4-inch instrument cable.

Powering the Pedal:

The MXR Distortion+ can be powered by a 9V battery or an optional 9V DC power adapter (center negative).

• Battery Installation: To install a 9V battery, remove the bottom plate of the pedal by unscrewing the four screws. Connect the battery to the clip and place it inside the enclosure before reattaching the bottom plate.
• Power Adapter: Connect a 9V DC power adapter (not included) to the power jack on the side of the pedal.

Image: Side view of the MXR Distortion+ pedal, highlighting the input, output, and 9V power jacks.

Image: Bottom view of the MXR Distortion+ pedal, showing the four screws that secure the battery compartment.

3. Controls

The MXR Distortion+ features two primary control knobs and a footswitch for activation.

Image: Top view of the MXR Distortion+ pedal, clearly showing the 'Output' and 'Distortion' control knobs.

• OUTPUT: This knob controls the overall output volume of the effect. Turn clockwise to increase volume, counter-clockwise to decrease.
• DISTORTION: This knob adjusts the amount of distortion applied to your signal. Turn clockwise for more distortion, counter-clockwise for less.
• FOOTSWITCH: Toggles the effect on/off. The LED illuminates when the effect is active.

4. Operating

The MXR Distortion+ is straightforward to operate, allowing you to quickly dial in a variety of distorted tones.

• Classic Blues Tones: Set the DISTORTION control low (e.g., 9 o'clock to 12 o'clock) and adjust the OUTPUT knob to drive the front end of your amplifier. This will produce a warm, overdriven blues tone.
• Early '80s Hard Rock: Max out the DISTORTION knob (e.g., 3 o'clock to full clockwise) for a powerful, saturated hard rock tone. Adjust OUTPUT to match your desired volume.
• Subtle Boost/Overdrive: For a cleaner boost with a touch of grit, set DISTORTION very low and OUTPUT to unity gain or slightly above.

Demonstration Videos (for related MXR pedals):

5. Specifications

6. Maintenance

• Cleaning: Use a soft, dry cloth to clean the pedal. Avoid abrasive cleaners or solvents.
• Storage: Store the pedal in a dry environment, away from extreme temperatures and direct sunlight.
• Battery Life: If using a battery, disconnect the input cable when not in use to conserve battery life. Remove the battery if the pedal will not be used for an extended period.

7. Troubleshooting

• No Sound:
  • Check all cable connections (guitar to input, output to amp).
  • Ensure the pedal is receiving power (check battery or power adapter).
  • Verify your guitar and amplifier are functioning correctly.
• Weak or Distorted Sound (unexpectedly):
  • Replace the 9V battery if it's low.
  • Ensure the power adapter meets the 9V DC (center negative) specification.
  • Adjust the OUTPUT and DISTORTION knobs to find your desired tone.

8. Warranty & Support

This product is covered by the manufacturer's warranty. For detailed warranty information or technical support, please refer to the official MXR website or contact their customer service directly. Keep your proof of purchase for warranty claims.