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. Compact pedal with versatile vintage and modern BOSS phasing New "Rise" and "Fall" modes create unidirectional phasing Includes classic multi-stage phasers with selectable stages Realtime control of Rate, Filter, and Tempo via optional expression pedal Tap tempo sync of phasing effects BOSS 5-year warranty “Rise” and “Fall” EffectsIn 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 ControlSyncing 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.Boss PH3 SpecificationsNominal Input Level-20 dBuInput Impedance1 M ohmsNominal Output Level-20 dBuOutput Impedance1 k ohmsRecommended Load Impedance10 k ohms or greaterResidual Noise Level-92 dBu (IHF-A, Typ.)ConnectorsINPUT Jack, OUTPUT Jack, EXP/CTL Jack, AC Adaptor Jack (DC 9 V)Power SupplyDC 9 V: Dry Battery 9 V type (6F22/9 V), AC AdaptorCurrent Draw50 mA (DC 9 V)AccessoriesDry Battery 9 V type (6F22/9 V)OptionsAC Adaptor (PSA-Series), Expression Pedal (Roland EV-5), Footswitch (FS-5U)Size and Weight ( incl. battery )Width73 mm2-7/8 inchesDepth129 mm5-1/8 inchesHeight59 mm2-3/8 inchesWeight0.4 kg