Boss PH-3 - Phase Shifter
Ships nationwide. Local pickup at the shop is free. Full shipping policy →
The PH-3 is the Boss compact phaser with Rise and Fall modes, where the phase keeps climbing or keeps falling instead of sweeping up and back down. It has Rate, Depth and Resonance knobs, a seven-position Stage switch and tap tempo on the pedal switch.
The Stage switch also covers the standard phasers, 4, 8, 10 and 12-stage, with more stages giving a deeper effect, plus a Step mode that moves the filter in jumps instead of a smooth sweep. Hold the pedal switch for two seconds, then tap the tempo in with your foot. The EXP/CTL jack takes a Boss FS-5U footswitch for tapping, or an expression pedal like the EV-30 to change the rate as you play.
New from Boss.
Includes: 9V alkaline battery and Boss safety leaflet. AC adaptor not included.
Weight: 15 oz (415 g) with battery
Dimensions: 2-7/8 x 5-1/8 x 2-3/8 in (W x D x H); 73 x 129 x 59 mm
Controls: Rate, Depth and Res (resonance) knobs; Stage switch; pedal switch (on/off and tap tempo); check indicator (on/off, tempo and battery check)
Bypass: Buffered bypass
Inputs and outputs: Input and Output (1/4-inch); EXP/CTL (1/4-inch TRS); DC In
Power: 9V alkaline battery (6LR61) or Boss PSA series AC adaptor (sold separately)
Current draw: 50 mA
Footswitch: Optional: Boss FS-5U, FS-6 or FS-7 (momentary) for tap tempo; expression pedal Boss EV-30, FV-500L, FV-500H or Roland EV-5 for rate
Modes: 4-, 8-, 10- and 12-stage phaser, Fall, Rise and Step
Battery: About 6 hours alkaline (continuous use, Boss figure)
Who it's for: Guitarists who want a compact phaser that can follow a song's tempo.
Questions
Does it run on a battery?
Yes. It takes a 9V alkaline battery, good for about six hours of continuous use by Boss's figure, or a Boss PSA series adaptor, sold separately. It draws 50 mA.
What does the Stage switch do?
It picks the phaser type: 4, 8, 10 or 12-stage, or the Fall, Rise and Step modes. The 12-stage setting is two six-stage phasers in series.
What plugs into the EXP/CTL jack?
A momentary footswitch such as the Boss FS-5U to tap the tempo, or an expression pedal (Boss EV-30, FV-500L, FV-500H or Roland EV-5) to change the rate with your foot. The bypass is buffered.
