Pricing and availability
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Average Price: $119
Standard/Professional
$75
$201+
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Budget
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Price History
Based on price data from 5 merchants for "Boss PH-3 Phase Shifter". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.
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Description
Introducing the Boss PH-3 Phase Shifter, a compact pedal that channels an array of vintage and modern phase effects into one accessible package. Boasting a rich selection of phasing options, this pedal offers Rise and Fall modes that create unidirectional sounds, adding a distinctive layer to your guitar's tone. This compact marvel is designed to make your musical journey as versatile and exciting as possible.
The PH-3's functionality extends to real-time control of rate, filter, and tempo, facilitated through intuitive knobs or by plugging in an optional expression pedal. It also includes a tap tempo sync function, allowing your phasing effects to effortlessly match the tempo of your jam. Whether you're a seasoned guitarist seeking to experiment with your sound, or a beginner eager to delve into the world of phase effects, the Boss PH-3 Phase Shifter is your ticket to an expansive sonic universe.
Key Features:
- Compact pedal with a range of vintage and modern phasing options
- Unique Rise and Fall modes for unidirectional phasing
- Includes classic multi-stage phasers with selectable stages
- Real-time control of rate, filter, and tempo via optional expression pedal
- Tap tempo sync of phasing effects for seamless integration with your playing tempo
- Optional expression pedal for additional control over the PH-3's rate
Owner's manual
Boss PH-3 Phase Shifter User ManualProduct specs
| Pedal Type | Phase Shifter |
| Inputs | 1 x Instrument |
| Outputs | 1 x 1/4" |
| Power Source | 9V DC power supply (sold separately) |
| Batteries | 1 x 9V |
| Height | 2.4" |
| Width | 2.9" |
| Depth | 5.1" |
| Weight | 0.9 lbs. |
FAQs
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What types of phase effects can the Boss PH-3 Phase Shifter produce?
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The Boss PH-3 Phase Shifter offers multiple-stage phasing, including 4, 8, 10, and 12-stage phases, as well as unique Rise and Fall modes for unidirectional phase effects.
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Is the Boss PH-3 Phase Shifter pedal analog or digital?
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The Boss PH-3 is a digital phase shifter, providing greater control over phaser characteristics compared to its analog predecessors.
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Can the Boss PH-3 Phase Shifter be powered by a battery?
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Yes, the Boss PH-3 can be powered by a 9V battery, or alternatively, a 9V DC power supply (sold separately).
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What are the input and output options on the Boss PH-3 Phase Shifter?
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The Boss PH-3 Phase Shifter features a single 1/4" instrument input and a 1/4" output, suitable for standard guitar pedal setups.
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How does the Boss PH-3 Phase Shifter differ from other phaser pedals?
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The Boss PH-3 offers digital precision with multiple phase stages and unique Rise and Fall modes, providing versatile phasing options beyond traditional analog phasers.
Videos
BOSSchannel
BOSS PH-3 Phase Shifter [BOSS Sound Check]
Reviews
PROS
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Versatile with a wide range of sounds
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Excellent for creating colorful, engaging riffs
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Durable, reliable construction typical of BOSS pedals
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Expression pedal input for expanded control
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Built-in tap tempo for syncing effects
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Highly tweakable for precise sound shaping
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Can mimic classic phasers (MXR Phase 90, Small Stone)
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Unique Rise and Fall modulation modes
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Can be used effectively with both clean and distorted signals
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Affordable, especially when bought used
CONS
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Some users experience a noticeable volume drop on certain modes
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Digital tone may not appeal to those seeking a warm, analog sound
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Learning curve to master all its features and settings
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Volume drop issues could be problematic for live performance
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Some modes described as thin-sounding or sterile
Owner Insights
We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Boss PH-3 Phase Shifter.
Features and functionality
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The "step phase" mode is likened to a keyboard arpeggiator, offering unique sound possibilities not present in many other phasers.
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The "Rise" and "Fall" modes provide a Shepard tone-like constant rise/fall phase movement, adding unique sound textures.
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The resonance knob on the PH-3 is highly praised for its effectiveness, potentially surpassing the EQD Grand Orbiter's resonance capabilities.
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The PH-3 can simulate an auto-wah effect when using milder settings with low resonance, depth, and rate, offering unexpected versatility.
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User experience
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Some users report a noticeable volume loss on certain settings, like the 4-stage and 8-stage modes, while other settings may boost or maintain volume levels.
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Owners enjoy using the PH-3 in subtle settings, like the 4-stage mode, with depth and resonance dialed back for a less pronounced effect.
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Some owners were surprised by the pedal’s auto-wah-like performance after accidental knob adjustments, indicating hidden versatility.
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Use cases and applications
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The PH-3 is particularly popular for psychedelic and ambient music, with its "step phase" mode frequently used in psychedelic jam band settings.
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The PH-3 can produce "laser" style sounds, appealing to those seeking unconventional, experimental tones.
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Users find the step mode highly effective with combinations of washy reverb and delay, creating boutique-level sounds at an affordable price.
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Comparisons
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Although some prefer MXR phasers for their singular quality, the PH-3 is favored for its versatility and multiple phasing options.
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While the Boss PH-3 is versatile, some users prefer the Phase 90 for its simplicity and built-in volume boost characteristic of MXR pedals.
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The PH-3 is compared to high-end Moog pedals and the Rainbow Machine for unique sound effects, particularly in the step mode, highlighting its value.
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Value and pricing
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The PH-3 is noted for being affordable, often available for around $75, making it a cost-effective option for those wanting a range of phaser sounds.
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Critic Reviews
4.5 out of 5
Based on 22 Reviews and 132 Ratings
569
I love it
The classic durable design by boss, the knobs feel very weak but the variety of options this pedal offers it's amazing and massive, maybe have a little volume drop but it's for the same effect and still works in live venues, if you look for build a shoegaze pedalboard this pedal is going to give you that movement that you are seeking, have a very step learning curve but it's worthy.
Preferred Settings + Usage:
I love to put it before the overdrive for the van halen esque-sound
182
my favorite boss so far
We did not turn out to be besties with Boss pedals somehow, I might as well be an Ibanez guy, but I've always found a better option to Bosses. Maybe because of their boxy 80's design, or too digital look and feel. Having owned a few analog phasers, and read the reviews, I did not expect too much from this guy, apart from a bit more versatility, but I could not resist a good second hand price, and it well worth the money. Firstly, this thing sings. To me the 4 stage mode sounds just as good as an analog phaser. To be honest, a bit better in case of the MXR, and a bit less "organic" than the small stone, but the differences are minimal, and maybe appear at playing dynamics, but I could hardly pass a blind test comparison. To my ears the 4 and 10 stage mode sounds a bit more natural than the 8 and 12, I guess the latter may be more beneficial at studio application than live. I tend to keep it on 4 stage for by now, and use the fun modes for solos, especially "fall" which gives a very unique edgy decay for the solo licks. I've also found the step mode usable with appropriate rate settings. And here comes the real fun: an option to synch the rate with the song tempo! This is a feature that all phasers should have! At first I was playing it with an expression pedal, that turns the pedal into a very sensitive wah pedal. It is fun for some songs, but I rather pump it than adjust, as it's not easy to find the sweet spot, but the tap tempo mode does the job very well. If I could ask for more, I'd prefer to have double tap mode too but i you are patient, the pedal is capable to handle very slow taps just as well. This really shows the beauty of phasing. I'm considering to get an exterior switch to tap tempo with it while still having the option to bypass the pedal, but it's not really a necessity, since when I use a phaser I tend to keep it on for the whole length of the song. For the same reason the slight volume drop does not bother me at all. What could be really cool is an option to switch modes with an exterior switch. Might as well be a doable mod. Anyways, this pedal is much recommended, very versatile, and sounds just as good as the classics.
Versatile Sound, but I had problems with Volume
I got his for half the price because it was used for demo in our local music store. There are a lot of different sounds in this pedal, but what I dont like about it is the remarkable loss of volume, especially in the modes with less stages. My experience is, that this gets better the closer you place the pedal to the front of the signal path, but I usually want my modulation after the dirt pedals and even at first position there is a significant loss of volume. I dont know if this only a problem with my setup, but I read that others have experienced similar problems. For this reason I stick with my Marshall RG-1, which isnt that versatile when it comes to phaser-sounds (it only has a normal and a step phaser), but instead of lowering the volume it pushes it a little bit, which is great for leads imho. It also has chorus, flanger and a uni-vibe mode, so overall it is much more versatile than the PH-3, too. Again, i like the sounds of the PH-3, but the volume problems make it unusable for me.
41029
worth buying
a friend's younger brother hipped me to the PH3 when it first came out...I mean, who uses a Boss phaser? they released a new phaser and I didn't even know it! turns out that the super phaser differentiates itself from the pack with all these useful modes... you can do 4, 8, 10, 12 stage phasing and you can set the LFO to be a ramp, a saw or 'steps'. Let your imagination do the work here!. So you're getting a cool tempo effect that's not trem or delay here in addition to the phasing. Your dad's orange phaser can't touch thata nd it costs more. Everyone needs a PH3 in their pedal drawer. Really fun with synths too.
1704
Que tal? tengo el mio recientemente , pero no logro que suene realmente bien con mis overdrives ...puede que este haciendo algo mal seguramente..mi cadena es guitarra , wah , fuzz, ep booster , overdrive 1 overdrive 2 phase...
41029
@fede_kempff it doesn't sound 'really good' it just sounds cool because it goes places no other phaser goes (short of certain old mutrons, and yes, I have an old mutron phazor)... experiment with the order of FX though. Also keep in mind I don't use a bunch of effects on a pedalboard and I don't usually get my overdrive from a little floor box. I play loud if I want drive.
1704
I agree! It is a great super versatile phaser, it is true what you say ... it is not the same to use the saturation of your equipment than to mix the phaser with floor pedals ... it will be a question of trying the best possible options, thanks for your contribution!
514
Great phaser loaded with tons of tones!
I know that this green box is all-digital, so sure - there might be fatter and warmer sounding analog phasers but I believe it is high time to let digitals do their things. However if you want kind of entry-level phaser, cheap and reliable PH-3 is way to go - 7 modes (4,8,10,12 stages plus three experimental, synth-a-like), full tone control (rate, depth and resonance) and really decent sound quality. I find it to work best in front of a dirty amp (not in fx loop). Also, volume drop was reported on countless threads, but my PH-3 (from 2014) is volume-drop free, works perfect!
398
Versatile phaser with enhanced control for clean tones
I tend to keep it on the 4-stage phaser setting, to get something similar to the MXR Phase 90 except with a bit more control on the sound. I'll rarely use this with heavy distortion, mainly just with clean or slightly overdriven stuff.
199
Incredible "rise and fall" effect
I alternate this with my MXR Phase 90 because this allows more control. The Rise and Fall options are amazing for adding denser waves of sound!
249
Psychedelic and Adaptable
The psychedelic guitar of the 70s is one of the sounds that I try to assimilate the most when creating and this pedal is ideal for that. The ability to play between the depth and expansion of the waves is addictive and always makes you want to look for more options when improvising. The option to indicate the time with the beats makes it very adaptable when you are creating with the band.
This review has been translated automatically into English. See original112
721
flexible flanger but some tone suck
Quite a versatile phase shifter, but cold tone with some tone suck so have replaced it on my main board with the Digitech
Artist usage
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Dan Auerbach's rig includes an Boss PH-3 Phase Shifter Pedal that is connected on the same loop as a Boss OC-3 SUPER Octave Pedal.
#ProductDemo Vai demos the pedal at 13:43, and talks about various possibilities in signal chain placement.
"A Boss Phase Shifter" is used in John Petrucci's pedalboard, according to his guitar tech.
This image comes from a "Rig Rundown" with Premier Guitar. As you can see, one of the pedals towards the bottom right of the board is a Boss PH-3 Phase Shifter.
As you can see from this picture on instagram, from Tom's studio, he owns/uses the Boss PH-3 Phase Shifter.
The Boss PH-3 was used on Daron's pedalboard for the first Scars on Broadway show at the Whisky A Go Go in West Hollywood on April 11, 2008. Picture taken by band photograph Greg Watermann.
Dan Steinhardt (from That Pedal Show) posted a picture of that pedal on a board on instagram, mentioning it was build for Graham: "A few tweaks but finished this #pedalboard and delivered it to its new home with none other than #grahamcoxon huge thanks to Joe@thegigrig for being a superstar and helping me get this done"
Check at 6:20 when you can see the effects that he has on the table. And when he starts playing the song Them Changes you can clearly hear a phaser along with an octave up from the Whammy.
Album Usage
The Boss PH-3 Phase Shifter has been featured on the following albums:
Thousand Knives - Thundercat Remodel
Thundercat (2022)
There's Only Black
Venom Inc. (2022)
Echo
Of Mice & Men (2021)
EARTHANDSKY
Of Mice & Men (2019)
Death of a Bachelor
Panic! at the Disco (2016)
Fading Love
George FitzGerald (2015)
... Pushing The Salmanilla Envelope
Jimmie's Chicken Shack (1997)
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 Boss PH-3 Phase Shifter, it is most commonly used with the following gear.
Community setups
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Add recommendation5 alternative and related items for Boss PH-3 Phase Shifter, curated by the Equipboard community.
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$109.99 - $119.00
MXR phase 90 is less intimidating , has less knobs and gets straight to the point . This is a cheaper option too .
$47.77 - $178.00
Usually the RG-1 costs half of a new PH-3 on the used market, it has less phaser sounds than the PH-3, but also provides chorus, flanger and a uni-vibe mode. Most importantly, it doesnt cut the volume, instead it brings it up a little.
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