Introduction
This manual provides instructions for the proper setup, operation, and maintenance of your MXR Phase 90 50th-Anniversary Pedal. Please read this manual thoroughly before use to ensure optimal performance and longevity of the product.
Safety Information
- Use only the specified power adapter (9 Volts DC, 2.1mm barrel connector, center-negative).
- Do not expose the pedal to moisture or extreme temperatures.
- Do not attempt to open or modify the pedal casing.
- Keep out of reach of children.
Product Overview
The MXR Phase 90 is a classic phaser guitar effects pedal known for its distinctive modulation sound. This 50th-anniversary edition features a special gold finish and simple, single-knob operation.
Image: Top-down view of the MXR Phase 90 50th-Anniversary Pedal. The pedal is gold-colored with a single black 'SPEED' knob on the top left, an input jack on the right side, an output jack on the left side, and a footswitch with an LED indicator in the center. The MXR logo and 'phase 90' are visible on the top surface.
Setup
- Power Connection: Connect a 9-volt DC AC adapter (not included) to the power input jack on the side of the pedal. Ensure the adapter has a 2.1mm barrel connector and center-negative polarity.
- Instrument Input: Connect your instrument (e.g., guitar) to the INPUT jack on the right side of the pedal using a standard 1/4-inch instrument cable.
- Amplifier Output: Connect the OUTPUT jack on the left side of the pedal to your amplifier or the next pedal in your signal chain using a standard 1/4-inch instrument cable.
- Placement: Place the pedal on a stable surface or integrate it into your pedalboard.
Image: Side view of the MXR Phase 90 50th-Anniversary Pedal showing the power input jack (left) and the instrument input jack (right). The pedal is gold with a black 'SPEED' knob visible on the top surface.
Image: Top view of the MXR Phase 90 50th-Anniversary Pedal, highlighting the 'INPUT' and 'OUTPUT' labels near the respective jacks. The gold finish and black 'SPEED' knob are prominent.
Operating Instructions
Controls
- SPEED Knob: This is the only control on the Phase 90. Turning the knob clockwise increases the speed of the phasing effect, while turning it counter-clockwise decreases the speed. Experiment with different settings to achieve various modulation sounds, from subtle sweeps to fast, watery warbles.
- Footswitch: Press the footswitch to engage or bypass the phasing effect. The LED indicator will illuminate when the effect is active.
Image: Close-up view of the black 'SPEED' knob on the MXR Phase 90 pedal. The knob has a white indicator line for setting the phase speed.
Image: Close-up view of the chrome footswitch and the small red LED indicator on the MXR Phase 90 pedal. The footswitch is used to activate or deactivate the effect.
Basic Operation
- Ensure all connections (power, input, output) are secure.
- Turn on your amplifier.
- Press the footswitch to activate the Phase 90. The LED will light up.
- Adjust the SPEED knob to achieve your desired phasing effect.
- To bypass the effect, press the footswitch again. The LED will turn off.
Maintenance
- Cleaning: Wipe the pedal with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Storage: Store the pedal in a dry environment, away from direct sunlight and extreme temperatures, when not in use.
- Battery Replacement: This pedal is designed for AC adapter use. There is no internal battery compartment.
Troubleshooting
No Sound
- Check all cable connections (instrument, amplifier, power).
- Ensure the power adapter is correctly connected and providing power (LED should light up when engaged).
- Test with different cables and a different power supply if available.
- Bypass the pedal to confirm your instrument and amplifier are working correctly.
Effect Not Engaging
- Ensure the power adapter is connected and functional.
- Press the footswitch firmly. The LED should illuminate when the effect is active.
Unwanted Noise
- Ensure all cables are shielded and in good condition.
- Check for ground loops in your setup. Try isolating the power supply.
- Ensure the power adapter is rated correctly for the pedal (9V DC, center-negative).
Specifications
| Feature | Detail |
|---|---|
| Model | M101GLD |
| Effect Type | Phaser |
| Controls | 1x SPEED knob |
| Input | 1/4-inch Instrument Jack |
| Output | 1/4-inch Instrument Jack |
| Power | 9V DC, 2.1mm barrel connector, center-negative (AC adapter not included) |
| Dimensions | 5.5 x 4.5 x 2.5 inches (approximate) |
| Weight | 1.16 Pounds (approximate) |
| Color | Gold |
Warranty Information
This MXR product is covered by a 2-year warranty from the date of purchase. The warranty covers defects in materials and workmanship under normal use. It does not cover damage caused by misuse, accident, modification, or unauthorized repair. Please retain your proof of purchase for warranty claims.
Support
For technical assistance, troubleshooting beyond this manual, or warranty service, please contact MXR customer support through their official website or authorized service centers. Refer to the MXR website for the most current contact information.
