Photo of Boss PH-3 Phase Shifter and more gear in a pedalboard

Boss PH-3 Phase Shifter

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$95.65 to $142.99 Price Tier: Standard

4.5 (132)

1 Critic Review

22 Reviews

All time low price

Find out who is using Boss PH-3

36 community setups

83 wishlisted

379 saved

Page last updated Jul 07, 2026

Pricing and availability

We compare 600+ stores and found this item at 8 stores. Prices updated July 7, 2026.

Store

Reviews

Price

4.5 (18)

$132.20

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4.5 (28)

$132.20

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4.6 (248)

$131.50 New

$118.35 Used (Like New)

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5.0 (66)

$95.65 105 available New

$55.00 78 available Used

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4.0 (103)

$142.99 $132.20 $10.79 · All time low

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$142.99

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4.6 (95)

$129.00

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£127.75

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Average Price: $119

Standard/Professional

$75

$201+

Price Tier

In the Phaser Effects Pedals category, Boss PH-3 Phase Shifter is priced in the Standard/Professional range. This is quality gear at a fair price point, suitable for beginners, hobbyists, and pros alike.

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Standard

High-end

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

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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 Manual

Product 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

What types of phase effects can the Boss PH-3 Phase Shifter produce?: 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.
Is the Boss PH-3 Phase Shifter pedal analog or digital?: The Boss PH-3 is a digital phase shifter, providing greater control over phaser characteristics compared to its analog predecessors.
Can the Boss PH-3 Phase Shifter be powered by a battery?: Yes, the Boss PH-3 can be powered by a 9V battery, or alternatively, a 9V DC power supply (sold separately).
What are the input and output options on the Boss PH-3 Phase Shifter?: The Boss PH-3 Phase Shifter features a single 1/4" instrument input and a 1/4" output, suitable for standard guitar pedal setups.
How does the Boss PH-3 Phase Shifter differ from other phaser pedals?: 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

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BOSSchannel

BOSS PH-3 Phase Shifter [BOSS Sound Check]

BOSSchannel

Boss PH-3 Phase Shifter

World Music Supply

Boss PH-3 Phase Shifter | Reverb Demo Video

Reverb

BOSS PH-3 Phase Shifter Pedal Review by Sweetwater Sound

Sweetwater

BOSS PH-3 Phase Shifter Demo

GuitarWithGabe

Boss PH-3 Phase Shifter Pedal

PMTVUK

MXR Phase 90 vs Boss PH-3 Phase Shifter

Middle Aged Gear Junkie

Boss PH-3 - Phase Shifter - No Talking Demo

Borrowing Space

Worst BOSS Pedal?! | PH-3 Phase Shifter

Leon Todd

Reviews

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PROS

Versatile with a wide range of sounds
Excellent for creating colorful, engaging riffs
Durable, reliable construction typical of BOSS pedals
Expression pedal input for expanded control
Built-in tap tempo for syncing effects
Highly tweakable for precise sound shaping
Can mimic classic phasers (MXR Phase 90, Small Stone)
Unique Rise and Fall modulation modes
Can be used effectively with both clean and distorted signals
Affordable, especially when bought used

CONS

Some users experience a noticeable volume drop on certain modes
Digital tone may not appeal to those seeking a warm, analog sound
Learning curve to master all its features and settings
Volume drop issues could be problematic for live performance
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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Build quality

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The PH-3 is noted for its durability, aligning with Boss's reputation for robust construction, making it a reliable choice for gigging musicians.
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Critic Reviews

Boss PH-3 Phaser Review (full rundown) - Guitar Chalk

guitarchalk.com

The Boss PH-3 Phase Shifter impresses with its versatile phaser modes and impressive tone quality, blending modern and vintage vibes seamlessly. With seven phase modes and a three-band EQ, it offers exceptional control, though it lacks a wet/dry mix feature. While a bit pricey for a digital pedal, its build quality and sound more than justify the investment, making it a top choice for those seeking detailed modulation control. Despite the missing mix control, the PH-3 stands out as a robust and reliable choice for musicians looking to enhance their sound with a dynamic and adaptable phaser.

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Full Review

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4.5 out of 5

Based on 22 Reviews and 132 Ratings

5 star

4 star

3 star

2 star

1 star

dave_pokk

almost 11 years ago

Fun but somewhat limited pedal

I have a very niche use for this pedal, and it does the spacey sound just right if you're doing a Pink Floyd kind of jam ( think Any Colour You Like).

eric_b_wood

776

almost 12 years ago

whoa dude

This was an impulse buy, but it's really awesome! In all honesty I don't think I've truly mastered it; it can be tough to use without overpowering your sound, but that's really not a failing of the pedal!

The tap tempo is a nice touch, and I love how many options it has. Overall, really fun to play with.

mightyjake182

120

almost 9 years ago

Underwater

This is a phase pedal and not a great one at that, a lot of the faster rate settings on this just sounds like a bird chirp underwater. and the slower settings aren't good enough to make up for that. Get an MXR Phase 90 instead.

chavaraujo

265

over 11 years ago

Nice variety of phase sounds but...

Only complaint about it is that in the 4 and 6 phase stages, the volume drops, still the sound out of it are good buuuut

Roles:

Guitarist Bassist Composer

Genres:

Electronic Rock Jazz

From Gear Setup

nutritiouspig

785

11 years ago over 11 years ago

Knowing that it drops in volume, would you get it again?

chavaraujo

265

11 years ago over 11 years ago

If i were looking forma moderna sounds i would do ir in a second also for price and versatility as The 10 and 12 doesnt hace any drop and The step mode sound really cool, in The case Of vintage sounds like The 6 and 4 stage phaser i would go for a uní vibe if The budget allow ir ir a phase 90. And about The volume drop if you are only using it on during The entire song or you have a volumen pedal there will be not so mucho problem

velibor_nikolic

272

over 7 years ago

Really good stuff.

Serious phaser. No more, no less. Love the sound and it "breathes" good in any mode.

Roles:

Guitarist Music Producer

Genres:

Rock Alternative rock Psychedelic rock

eoin_reddin

about 9 years ago

Amazing phase

Good for low sweeps on a clean tone and fast sweeps for more progressive sounds.

giulio_mazzocco

393

almost 9 years ago

the volume of pedal is very low

when you active the volume come low, nice for the studio not fot the live session

mumblingmind

almost 12 years ago

my first phaser

I havent messed a whole lot of phasers to be honest. But every time i use it, it dampens my tone a lot. Not as clear as i would like. If you have info on why, let me know.