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The Electro-Harmonix Bad Stone Phase Shifter Pedal is a compact, rugged effects pedal featuring six stages of variable-feedback phase shifting with manual shift mode for creative, dynamic sound design. Equipped with true bypass switching and powered by an included 9V battery, the Bad Stone delivers vintage phasing tones with modern control and reliability for studio and live performance. The Bad Stone was the first phase shifter to employ variable feedback and features six stages of phase shifting for dynamic, evolving tonal effects Manual Shift mode lets you freeze the phase effect at your desired setting for locked-in, consistent tone control Compact, rugged die-cast package True bypass switching maintains maximum signal path integrity, preserving your guitar's tone when the pedal is off Powered by 9V battery (included) or optional external power supply for flexible setup options

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