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Boo Instruments Phaser PH-1R

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Page last updated Aug 10, 2025

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Description

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Modeled on the classic phaser circuits such as the famous Boss PH-1r circuit but with some boutique improvements.

The Boo PH1R has an improved effect to bypass volume ratio (the original Boss was too loud when switched on)

(The circuit is also similar to MXR Phase 90 pedal so with the 3 knobs (rate, feed, depth) you can dial in a variety of tones)

Top components used throughout
Metal Film resistors
Panasonic coupling capacitors
Audiophile potentiometers
Quality True Bypass Switch (no change in tone when the effect is not in use. What goes in comes out)
3 knobs for multitude of settings
All discrete circuitry
Robust metal enclosure
All writing engraved so will always remain visible.

A really great sounding phaser pedal capable of very slight phasing effect to a full out crazy pulsating phaser…

Only a very limited amount available.

Comes with 12 month warranty

Runs of a RAAD 9V negative center power supply (also compatible with all standard quality guitar pedal power supplies of 9V negative center.)

Spec:

Dimensions: 112x60x50mm

Weight: 250 grams

Power Consumption: less than 25mA for standard, less than 40mA for Light Up Lid version

(Light Up Lid versions can only be used with a power supply.)

Product specs

Power	9V
Mono/Stereo	mono

Videos

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BooInstruments

Boo Instruments Phaser PH-1R PH1R Demo Review Phase Shifter Effect Pedal

BooInstruments

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Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Boo Instruments Phaser PH-1R.

Features and functionality

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The Boo Instruments PH-1R offers fine control over depth and feedback, allowing users to tailor their phaser sound more precisely compared to other models.
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Comparisons

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The Boo PH-1R can emulate a Phase 90 tone while providing a unique vintage sound, distinct from the high-end cut typical of MXR phasers.
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The PH-1R is likened to the Small Stone but with the capability of achieving more dramatic effects, including slower phase rates.
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User experience

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Some users describe the PH-1R's phasing effect as smooth and organic, making it suitable for both guitar and synth applications.
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A user noted that the PH-1R might have a higher blend of clean signal, affecting the audibility of the phase effect.
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Use cases and applications

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The PH-1R is praised for its versatility, offering a range of phase effects from subtle to more pronounced, making it ideal for various musical styles.
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Artist usage

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Ed Sezener

Singer, Guitarist

Mental Soup

Verified via Photo

Ed Sezener has customized his Boo Instruments Phaser PH-1R by adding a blue light underneath it. This redesigned version is featured in a post on the Mental Soup Band's Instagram.