Boss PH-3 Phase Shifter Review
Verdict and Pedal Review Summary
A wet/dry mix would help push the PH-3 into the 90th percentile, but there's otherwise little to complain about. Tone quality is great for a digital phaser, an expectation that Boss consistently delivers on.
BEST FOR: Any time you need a highly controllable layer of modulation.
TONE
88
EQ/CONTROL
90
BUILD
92
COST/VALUE
88
- Lots of phaser modes to choose from
- Simulated phaser stages sound great
- Can bridge between both modern and vintage styles
- Tone quality is great for a DSP
- Pricey for a non-analog small-form phaser
The Boss PH-3 is one of the most popular phaser pedals available, sporting seven phase modes, an expression pedal control, and a three-band EQ. This is our full Boss PH-3 review, conducted with the Phase Shifter pedal in-hand and based on a first-hand account. Note that we did not test the expression pedal functionality, though we have no reason to believe there are any concerns related to it.
For our Boss PH-3 review we tested the pedal with two different electric guitars, through both a solid state and tube amplifier, and primarily with a clean, undistorted signal. If you have additional questions about our review process, hit us up via the comment section below and we'll be happy to answer.
Read more: Best Guitar Pedals Overall
Phaser Comparison Section
In this section we've set up a small table to compare the Boss PH-3 to a few other phaser pedals that are in a similar price range.
Phase | Name | Rate | Shop |
|---|---|---|---|
 | Boss PH-3 Phase Shifter | 89.5 | |
 | Walrus Audio Lillian Phaser | 92.3 | |
 | EHX Small Stone Phaser | 81.8 | |
 | MXR Phase 90 | 94.5 |
Our full review of the long-standing Boss PH-3 phase shifter (phaser) pedal. Image via BigNose Guitar House
Sound Quality and Tone of the PH-3
The PH-3 has a more modern edge to it, almost like a 90s or early 2000s phaser sound, especially compared to the older PH-2. Though it still has a lot of warmth and organic appeal, comparable - on certain settings - to the tone we get out of the analog MXR Phase 90. With lower depth and speed settings, it creates a subtle layer of modulation that does a good job of dressing up a clean tone.
Lower settings on the PH-3 work well with the following scenarios:
- Clean chord progressions
- Ringing, sustained chords
- Short, single-note fills
- Short melody lines
We found the PH-3 to be most effective as a clean layer, which is consistent with other modulation effects. The PH-3 just gives you a lot more control and ways to tweak your sound than we see in most comparable phaser pedals.
Control and EQ
The control scheme in the PH-3 centers mostly around the mode selection, which affords you the following digitally modeled options:
- Step
- Rise
- Fall
- 12 stage
- 10 stage
- 8 stage
- 4 stage
From there, you have a three-band EQ that allows you to manipulate the effect:
- Res (resolution)
- Depth
- Rate
The only disappointment here is the lack of a mix or wet/dry control. Boss often leaves this knob out though, perhaps in favor of making room for the mode selector. The controls they do have are responsive and effective, giving you plenty of room to work on either the lower or higher intensity levels. We thought the PH-3 performs best on the lower, more subtle settings, but definitely has some use on the more intense settings as well.
Boss PH-3 Manual
If you're looking for the Boss PH-3 user manual, you can download it directly from Roland Corp.
Clip of the owners manual for the Boss PH-3 phaser pedal.
The Pedal's Technical Specs
- Pedal Type: Phaser/modulation
- Inputs: 1 x instrument
- Outputs: 1 x 1/4"
- Power Source: 9V DC
- Batteries: 9V
- Height: 2.4"
- Width: 2.9"
- Depth: 5.1"
- Weight: 0.9 lbs.
Expression Pedal Compatibility
As I mentioned earlier, the Boss PH-3 is compatible with expression pedals via the EXP/CTL jack. Here's a list of confirmed compatible expression pedals:
- FS-5U footswitch
- EV-30
- FV-500H
- FV-500L
- Roland EV-5
Another look at the sharp PH-3. Image via Caveman Vintage Music
Current Draw
The Boss PH-3 Phase Shifter has a current draw of about 40mA, with an expected battery lifespan of 9.5 hours, assuming a 9V alkaline battery.
Summary of Our Boss PH-3 Review
If you're prioritizing control, the Boss PH-3 is a good fit. If you're more interested in a set-and-forget type of phase pedal, it might be better to re-assess and go with something like the Phase 90 or Walrus Audio Lillian phaser. Overall, the PH-3 is a fantastic modulation pedal with plenty to offer in most situations and all skill levels. It's hard to find much to complain about, outside of the omission of a wet/dry mix, but we can overlook that for the plethora of additional control.
Questions
Do you have questions about our Boss PH-3 review or the review process? If so, drop a line in the comments section below and we'll chat. See you there.
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Written by Bobby Kittleberger on Pedals & Reviews
Written by Bobby Kittleberger on Pedals & Roundups
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