Phase Shifter

Where to Buy

Modern Phasing with Tap Tempo Sync

The BOSS PH-3 Phase Shifter pedal provides a wealth of vintage and modern phasing effects, including new "Rise" and "Fall" modes for unique, unidirectional phasing. Syncing these phasing effects is as simple as tapping the pedal to the desired tempo, while an optional expression pedal provides realtime control of the PH-3's Rate, Filter and Tempo.

“Rise” and “Fall” Effects

In addition to standard up and down cycles, the new PH-3 Infinite Phaser can produce entirely upward or downward moving sounds through its new Rise and Fall effects. There’s also 4-, 8-, 10-, and 12-stage phasers, plus a Step effect.

Total Control

Syncing the PH-3’s phasing effects can be achieved by simply tapping the pedal to the tempo desired. Or, for maximum control, connect an optional expression pedal to control both rate and filter in real time as you play.

Nominal Input Level
-20 dBu
Input Impedance
1 M ohms
Nominal Output Level
-20 dBu
Output Impedance
1 k ohms
Recommended Load Impedance
10 k ohms or greater
Residual Noise Level
-92 dBu (IHF-A, Typ.)
INPUT Jack, OUTPUT Jack, EXP/CTL Jack, AC Adaptor Jack (DC 9 V)
Power Supply
DC 9 V: Dry Battery 9 V type (6F22/9 V), AC Adaptor
Current Draw
50 mA (DC 9 V)
Dry Battery 9 V type (6F22/9 V)
AC Adaptor (PSA-Series), Expression Pedal (Roland EV-5), Footswitch (FS-5U)
Size and Weight ( incl. battery )
73 mm
2-7/8 inches
129 mm
5-1/8 inches
59 mm
2-3/8 inches
420 g
0 lbs. 15 oz.
* 0 dBu = 0.775 Vrms
*The specifications are subject to change without notice.


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