MXR M101 PHASE 90 PHASER Review & Video: Creamy Butter Churner!
At long last - one of my favorite and most used pedals of all time! The MXR Phase 90 Phaser, like some of my other prized pedals, it's nothing new.
However, this pedal has achieved legendary status for some of the creamiest and warm sounding phaser effects of all time.
This simple, orange colored pedal with only one knob provides huge sweeping and swelling effects which are perfect for all different types of music. Physically speaking, the MXR Phase 90 is constructed out of seemingly bullet proof steel which would probably support the weight of a large elephant. One drawback to this pedal is that if you want to replace the battery be sure to have a screwdriver handy as you cannot access the compartment without one.
Selected Video:
Found this great Video on YouTube of a talented player showcasing the Phase 90's effect at different settings. Runtime is nearly 8:30 seconds!
Some people claim that a truly vintage MXR Phase pedal sounds much better than a newly manufactured one. Having used both extensively, I've noticed a few things. The older models do seem to have more of a thicker, almost warmer tone to them. That being said, the original pedals are alxo much noisier than the newer ones. My advice- buy new. An AC adapter is also included in the box. For around $99 this pedal will do wonders to your sound.
Live Results:
| MXR Phase 90 PROJECT | ![]() |
5 Bids | US $13.63 | 2h 15m |
| ibanez maxon phasetone vintage phaser rare mxr phase90 small stone mu tron boss | ![]() |
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US $135.00 | 6h 9m |
| MXR Custom Shop CSP 105 1975 Re Issue Script Phase 90 NR Free Shipping | ![]() |
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US $85.00 | 6h 30m |
| MXR Phase 90 | ![]() |
12 Bids | US $20.50 | 8h 13m |
| MXR M101 Phase 90 Effect Pedal DUN M101 Phaser Guitar Effects | ![]() |
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US $119.95 | 9h 9m |
| MXR Phase 90 Guitar Effect Phaser VINTAGE Phasor | ![]() |
13 Bids | US $100.00 | 9h 18m |
| NEW MXR Zakk Wylde Phase 90 FX Pedal W FREE CABLE | ![]() |
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US $99.90 | 9h 42m |
| Vintage Mxr Phase 90 Block Logo W Box Manuals Etc | ![]() |
5 Bids | US $55.00 | 10h 13m |
| Dunlop MXR Effect Pedal M101 Phase 90 Guitar Effects Phaser | ![]() |
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US $124.95 | 14h 39m |
| Whirlwind ORANGE BOX PHASER Pedal MXR Phase 90 NEW | ![]() |
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US $111.95 | 1d 2h 25m |
In a live setting, I find that with full distortion cranked up, a little MXR Phaser will make my solos leap out of my amp and smack a listener in the face like nothing else. Get this pedal!
Features
- Foot accessible speed control knob
- LED on/off indicator
- Powered by the Dunlop ECB03 (earlier versions use ECB02) AC Adapter and/or 9 volt battery
Technical Info
- Dimensions: 4-1/4 x 2-1/4 x 1-1/4 in.
- Weight: 0.9 lbs.
- Color: Orange









Hi,
I´m a brazilian guitar player who make this video.
Thanks by your friendly words about my work in this video.
I´m very happy in being able to help others guitar players in some way.
I don´t speak english, just a few words, but i decided to try to express my congratulations for your work in this site.
Greetings from Brazil,
Marcos Craveiro
(youtube nickname “caracoles01″)