Description
Most phasers give you one flavor of swirl. The PH-3 gives you an arsenal. Alongside the classic 4-, 8-, 10-, and 12-stage phasing modes that cover everything from subtle shimmer to thick, watery modulation, Boss added Rise and Fall modes that break from the usual up-and-down cycle entirely — sweeping in one direction only for a genuinely different texture that’s hard to get from older phase pedals. A Step mode rounds things out for rhythmic, staggered movement.
Placement is flexible: drop it early in the chain before gain stages for a vocal, vintage push, or run it after distortion/overdrive for a smoother, more ambient wash. Either way, tap the footswitch to dial in the rate on the fly, matching the phase cycle to your song’s tempo without reaching for a knob mid-set. Hook up an optional expression pedal to the EXP/CTL jack and you get real-time hands-on control over Rate and Filter as you play — handy for swells that build or fade with a phrase.
- Vintage and modern BOSS phasing in one compact housing
- Rise and Fall modes for unidirectional sweep effects
- 4-, 8-, 10-, and 12-stage phaser settings plus Step mode
- Tap tempo control of phasing rate
- Real-time Rate/Filter control via optional expression pedal
- Runs on a 9V battery or optional AC adaptor (PSA-series)
- Backed by Boss’s five-year warranty
Compact enough to squeeze onto a crowded board at 73mm wide and 420g, the PH-3 is built to be the one phaser that handles both subtle vintage swirl and the more adventurous, forward-moving sweeps modern players reach for.






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