Preowned and in excellent condition! 

Boss's Phase Shifter provides you with a varied range of vintage and modern phaser effects, including Rise and Fall modes for a unique, unidirectional phaser. The PH-3 is also capable of delivering classic multi-stage phasers with selectable ranges, however. Synchronising the effect is easy - just press the pedal repeatedly, and an optional expression pedal can be used to control Rate, Filter and Tempo parameters in real-time.

The PH-3 is equipped with four simple controls. A Rate knob determines the speed of the filter changes, while a Depth knob controls the effect level. The effect resonance is controlled by a Res knob, and a Stage knob allows you to select a phaser type. You can choose between 4, 8, 10 or 12-stage phasers and Fall, Rise and Step phase types.

Specs: 

• type: phaser
• rate: determines the speed of the effect
• depth: determines the strength of the effect
• res: determines the resonance of the effect
• stage: determines the phaser type
• on/off switch by means of a foot pedal
• indicator: battery check
• input: input/EXP/CTL; 1/4-inch jack, input impedance 1 MOhm
• output: 1/4-inch jack, output impedance: 10 kOhms
• powered by 9V battery (6F22/9V) or optional PSA AC adapter
• power consumption: 50 mA
• dimensions: 73 x 129 x 59 mm (WxDxH)
• weight: 400 grams