Boss PH-3 Phase Shifter Pedal

Phase Shifter Pedal for Guitar/Bass
Boss PH-3 Phase Shifter Pedal image 1
Boss PH-3 Phase Shifter Pedal image 1
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Boss PH-3 Phase Shifter Pedal
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Tons of Great Phaser Effects from a Compact Stompbox!

The BOSS PH-3 Phase Shifter pedal puts vintage and modern phase effects (and more) into a very convenient stompbox! In addition to multiple-stage phasers with adjustable stage settings, you get Rise and Fall modes for incredible unidirectional sounds. The PH-3 Phase Shifter includes rate, filter, and tempo controls, which can be accessed via easy-to-use knobs or by plugging in an optional expression pedal (not included). You can also use this pedal's tap tempo functionality to make the phase effect match the tempo of the song you're playing. Put an astounding array of phase effects at your feet with the PH-3 Phase Shifter!

BOSS PH-3 Phase Shifter Phase Effects Pedal Features at a Glance:
  • Compact pedal with versatile vintage and modern BOSS phasing
  • Rise and Fall modes create unidirectional phasing
  • Includes classic multi-stage phasers with selectable stages
  • Real-time control of rate, filter, and tempo via optional expression pedal (not included)
  • Use the BOSS EV-5 expression pedal to control the PH-3's rate
  • Tap tempo sync of phasing effects
The BOSS PH-3 Phase Shifter pedal gives you tons of great phase effects from a compact stompbox!

Tech Specs

Pedal Type Phase Shifter
Inputs 1 x Instrument
Outputs 1 x 1/4"
Batteries 1 x 9V
Power Supply Included No
Height 2.4"
Width 2.9"
Depth 5.1"
Weight 0.9 lbs.
Manufacturer Part Number PH-3

Customer Reviews

Based on 4 reviews
Write your review


This phase shifter works as advertised and delivers a splendid ambient tonal experience.

Great Pedal

Fantastic pedal, easy to use and fun to play around with different settings.

Another Boss Success

I recently purchased the PH-3 to replace my 1970's vintage SmallStone phase shifter--which finally phaded away after almost 40 years of use. I was a little concerned that I wouldn't be able to produce the organic sound of the older EH unit, but I have replaced almost all of my effects with the Boss units in this series (including overdrive/distortion, compressor sustainer and delay) so I decided to keep it in the family. What a great decision! I can absolutely reproduce the effect of the vintage SmallStone, and with the additional stage settings I can do so much more. OK, some of the effects are so over the top I probably wouldn't ever use them, but, hey, they are great to experiment with. Quiet in operation, no switching noise, intuitive to use, and solidly built. This will in all likelihood the last phase shifter I will ever buy, if it turns out to be as reliable as my old SmallStone. Highly recommended.
Music background: Songwriter guitarist, producer engineer

Really Nice

This pedal is great... if you know how to use it. This pedal took me a while to figure out. The regular phasing sounds are pretty good but what really sells this pedal is the fall, rise, and step modes. With the fall mode your sound continually drops which I love in certain songs. The rise mode is the opposite, it makes your sound continually rise, and the step mode is more for techno but it is sure fun to play around with. Overall I love this pedal but it is way over priced. I bought this from a friend but if you can find it used for cheaper (which you can) it is a good buy. The reason this pedal did not get 5 stars is because of the ease of use issue and the price.
Music background: Hobbyist, Live Player
See also: Phasers, Boss, Boss Phaser Pedals