Pricing and availability
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Average Price: $151
Standard/Professional
$75
$201+
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Price History
Based on price data from 5 merchants for "MXR M107 Phase 100". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.
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Description
Introducing the MXR M107 Phase 100, a beloved classic in the world of phaser effects pedals. Celebrated for its ability to cover a wide range of phasing sounds, the Phase 100 expands upon the dreamy, lush sounds of its cousin, the iconic MXR Phase 90, by adding adjustable intensity for sweep width and notch depth.
The MXR M107 Phase 100 is not just a guitar effects tool but a versatile studio tool that can add distinct character to vocals, synths, drums, and more. With its 4 preset intensities, you can dial in everything from subtle swooshes to deep, resonating modulations. The speed knob allows you to control the intensity of the phase effect, giving you the freedom to decide how mild or wild it gets.
Whether you're a fan of classic 70s phasing sounds or modern, more dramatic phasing effects, the Phase 100's rotary switch for different waveforms will not disappoint. This pedal's versatility and tweakability make it a perfect choice for musicians and producers looking to add depth and excitement to their sound.
Key Features:
- 10 stages of programmable phase shifting
- Adjustable intensity for sweep width and notch depth
- Regeneration in 2nd and 4th position
- Four selectable preset intensities
- Broad speed range
- Can be operated via a power supply or with a 9V battery
- Status LED
- Excellent for guitars, bass, keyboards, and as a studio recording tool
Product specs
| Pedal Type | Phaser |
| Analog/Digital | Analog |
| Inputs | 1 x 1/4" |
| Outputs | 1 x 1/4" |
| Bypass Switching | Hardwire |
| Power Source | 9V DC power supply (sold separately) |
| Power Usage | 6mA |
| Batteries | 1 x 9V |
| Height | 2.37" |
| Width | 3.62" |
| Depth | 5" |
| Weight | 1.28 lbs. |
FAQs
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What type of power supply does the MXR M107 Phase 100 require?
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The MXR M107 Phase 100 requires a 9V DC power supply, which is sold separately. It can also be powered by a 9V battery.
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Is the MXR M107 Phase 100 suitable for both guitar and bass?
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Yes, the MXR M107 Phase 100 is suitable for both guitar and bass, offering rich, sweeping phaser effects that enhance the tonal range of both instruments.
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How does the MXR M107 Phase 100 differ from the Phase 90?
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The MXR M107 Phase 100 offers more versatility than the Phase 90, featuring a 4-position rotary switch for selecting different phaser intensities, providing a wider range of phasing effects.
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Can the MXR M107 Phase 100 be used in a pedalboard setup?
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Yes, the MXR M107 Phase 100 can easily be integrated into a pedalboard setup thanks to its compact size and standard 1/4" input and output jacks.
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What kind of bypass does the MXR M107 Phase 100 use?
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The MXR M107 Phase 100 uses hardwire bypass switching, ensuring that your signal remains unaffected when the pedal is not engaged.
Videos
ProGuitarShopDemos
MXR M-107 Phase 100
MXR M-107 Phase 100
ProGuitarShopDemos
MXR Phase 100
jimdunlopusa
MXR Phase 100 in 100 Seconds
docSanchezFX
MXR Phase 100 demo
Pedals and Effects
Ten Stages of Scoopy Goodness - the MXR Phase 100 Phaser
Stompbox Breakdown
MXR Phase 100 and the Garcia Guitar Rig
Crazy Legs Cabs
MXR Phase 90 and Phase 100 Comparison
mudshrimpmoe
MXR PHASE 100 BASS DEMO
Bassklasse
🌊★ MXR Phase 100 (Phase Shifter)
WahDaFuzzTw
Reviews
PROS
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Offers a selection of phasing intensities, enhancing versatility
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Works exceptionally well on both keys and guitar, broadening its application
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Maintains sound clarity even with high-output humbuckers, avoiding treble loss
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Optical phaser design provides higher headroom and complex, deep tones
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Features a variety of waveforms for diverse sound options
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No noticeable tonal loss when bypassed, ensuring signal integrity
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Provides a unique, liquidy tone with flanger-like qualities
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Compatible with a wide range of instruments, including vocals and synths
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Superior to similar pedals for achieving lush Hammond organ sounds
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Integrates well into effects chains, pairing easily with other modulation effects
CONS
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Some users find the EQ tone bright, nearly harsh
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A few users find it sounds artificial at all settings
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Lacks a battery access cover, complicating battery changes
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Larger size may be less convenient for some pedalboards
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Intensity control's mirrored positioning can be confusing
Owner Insights
We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about MXR M107 Phase 100.
Setup and maintenance
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Placing the Phase 100 at the front of the amp, rather than in the effects loop, can resolve volume discrepancies and improve clarity and depth.
Source
Comparisons
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Users find the Phase 100 significantly more versatile than the Phase 90, offering a broader range of adjustments and unique sound possibilities.
Source -
A vintage Phase 90 is favored for its classic sound, whereas the Phase 100 provides a broader range of sounds, but neither can replicate the other's unique tones.
Source -
It’s noted that after 10 stages, phasers like the Phase 100 begin to mimic chorus effects, contrasting with simpler phasers like the Phase 45 or Phase 90.
Source
Features and functionality
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The Phase 100 excels in delivering quality sounds across lighter, spacier play styles as well as thicker, heavier mid to high-gain styles.
Source -
The Phase 100 offers four different modulation modes, adding significant versatility for users seeking varied phaser effects.
Source -
The Phase 100 utilizes a 10-stage phaser, creating a deeper, more pronounced sweep compared to the 4-stage Phase 90, leading to a chorus-like effect.
Source
Use cases and applications
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A tactically placed compressor in the pedal chain may address the Phase 100's quieter output compared to newer MXR pedals.
Source -
Users have successfully integrated the Phase 100 with synth gear, finding it to be a favorite for creating diverse soundscapes.
Source -
Owners find the Phase 100 pairs well with fuzz pedals, enhancing its univibe-like qualities without overwhelming the signal.
Source
Value and pricing
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The Phase 100 is available new, contrary to some perceptions of it being out of production, providing buyers with more purchasing options.
Source
4.5 out of 5
Based on 9 Reviews and 67 Ratings
249
Perfect phaser pedal
I like simple pedals. This is a classic simple phaser pedal. Easy to use and get that full space lift off sound all the way to just a subtle feel when using with a clean tone. No complaints at all. Not sure if I would need anything more in a phaser pedal.
182
sorry for my disappointment
This is no doubt ?THE? phase tone that everybody's after, so maybe because of its fame, it was a major disappointment for me, sorry for that. I had and I even have phasers that sound better to my ears, my old Small Stone, in the first place. I'm unable to fork out a decent subtle or prominent sound from it, it sounds artificial at all settings. I even cannot reproduce an authentic Stones sound with it, despite that they were reportedly using Phase 100 on Some Girls and nearby tours. It does not help either that the intensity control was surprisingly mirrorred sometime during its long production years, so when somebody is referring to "position 2" you can never be sure which setting he's meaning. Some sources state that the old "script logo" version, or Eddie Van Halen's signature version sounds different and better. I cannot confirm that as yet with no chance of comparison, but truth may be in it, as my vintage Small Stone sounds warmer and fuller than the current nano version of EHX.
40985
a smalls tones a whole different approach to phasing and doesn't filter things much at all whereas the bandwidth of the mxr stuff is highly limited... small stone guys never like mxr phasers. Took me years to warm up to these guys. The odler ones definitely sound different than the newer ones just like the 2nd edition small stone I sued to use was different than my Russian ones which were in turn different than the new one I have around. I recently had to help a guitarist produce a some girls, shattered sound for a record Iw as engineering and my newer mxr stuff would not cut it. It was far too overtly phasey. The small stone was not tight enough sounding. We wound up going to a chorus or flanger to approximate it believe it or not. It wasn't dead on but it captured more of the warbly warmth than any new mxr pahsers could.
182
Yes, you may be right that those sounds fall closer to a mild warm flanger than any of the current phasers, but I learned to like phasers just for themselves. I've found that there's no two similar phasers, they are somewhat unpredictible, but I found the Phase 100 the least likeable, I just feel it unnecessary at each settings, probably because the filtering you refer to. I used to have an Ibanez PT-9 that also had a character of it's own, that I cannot reproduce with neither the MXR nor the Small Stone.
40985
I have owned more phasers, flangers and choruses then probably anyone frequenting this site... there are so many factors contributing to differences in phase tone circuit wise... the ehx and mxr sounds are just polar opposites in EVERY regard design-wise
40985
by the way, definitely try a phase 45... tis like the bad stone of mxr phasers and the mxr sound mates well with the 4 stage versus 8 stage phasing. If you can find one try a mutron… that's my desert island phaser. The I or the II, both are great.
986
Not a phase 90 with added features
Most people buying a Phase 100 are probably going the way trying to replace a lovely but limited Phase 90 because they wish to add some nice features like a width control etc. Most of them will then recognize that a Phase 100 is nothing like a Phase 90 soundwise (and also circuit-wise): It is kind of thinner, more open sounding, there is a volume drop when engaged but nevertheless the sound is great especially when playing fat sounding humbucker guitars. In the end it is a matter of taste but I really like it!
249
113
Grin
From the silly to the sublime with outstanding control. About all the envelope my bass rig needs.
Artist usage
Add artist
From http://www.kurtsequipment.com/ site, who claims the source for this info is Ernie Bailey itself, Kurt's guitar technician:
Sources: 59). My conversations and emails with Earnie Bailey. 60). Various emails.
Effects: 7). Orange MXR Phase 100 which was used for "Curmudgeon." This was owned by Kurt (59) and supposedly purchased at Voltage Guitars at the same time as his Fender XII and blue Mosrite (60).
Used at the end of Parallel Universe during the solo section. Quote from John. " I borrowed an MXR Phase 100 from the people who were recording next door. I was looking for a way to approach that solo, and the Phase 100 worked out well." [Guitar Player (UK), September 1999]
In a user-uploaded photo on Photobucket, James Hetfield's touring rig includes the MXR M107 Phase 100 pedal, indicating its use during performances.
This photo of Matthew Bellamy's effects rack (used during the Black Hole and Revelations tour) shows he uses the MXR M-107 Phase 100 Effects Pedal. It can be seen in the pedal tray, to the left of the gray Keeley Compressor pedal.
During the 1996 G3/Fire Garden tour, Vai used a Phase 100 in an off-stage rack drawer.
Not sure the exact variation but Trent says in this interview: "My dad got me a Wurlitzer electric piano with a phase shifter, an MXR Phase 100 pedal."
"MXR Phase 100, for those of you looking for the Siamese Dream lead sound. you just pick one of these (modes) and turn the speed all the way down. It gives you a little bit of movement there." - Billy Corgan at 2:38.
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"Keith Richards’ trippy tone on “Shattered”? Phase 100. The intuitive operation and bullet-proof reliability of MXR pedals ensured that those guitar heroes could reproduce the sounds of their hit records night after night on the road as well as in the recording studio."
You can see the Phase 100 in between his two 90s.
According to Guitar Geek's rig diagram, Mascis uses a MXR Phase 100 pedal.
At the 18:27 mark in the Premier Guitar "Rig Rundown" video featuring Frank Iero, the MXR M107 Phase 100 pedal is visibly part of his pedalboard setup.
Album Usage
The MXR M107 Phase 100 has been featured on the following albums:
Can't Get Enough: A Tribute To Bad Company
Bad Company (2025)
Bad Company
Bad Company & Charley Crockett (2025)
More, More, More (Remix)
The Andrea True Connection & Blackburner (2024)
Young Blood
Marcus King (2022)
Light & Sound
Luke Million (2014)
Boom, Boom (Out Go The Lights)
Pat Travers (2007)
Does This Look Infected?
Sum 41 (2002)
All Killer, No Filler
Sum 41 (2001)
Load (Remastered)
Metallica (1996)
Siamese Dream (Deluxe Edition)
The Smashing Pumpkins (1993)
Nevermind
Nirvana (1991)
Cars
Gary Numan (1979)
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 M107 Phase 100, it is most commonly used with the following gear.
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Community setups
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