EHX has brought the legendary Bad Stone phase shifter back to life. With prices for vintage 1970s Bad Stones soaring, you can now get a Bad Stone with faithfully recreated original circuitry and three control knobs, plus expanded functionality to meet the needs of modern players. The Bad Stone features six phase stages and a MANUAL SHIFT mode that freezes the phase effect. The RATE control controls the phase shift speed, from slow to fast enough to create oscillation. The FEEDBACK control controls the depth of the phase effect, with a toggle switch to switch between AUTO and MANUAL. Other features include a die-cast housing, true bypass for optimal signal path sound quality, effect status LEDs, and a power jack (sold separately).-A carefully selected example from the legendary Bad Stone of the 1970s has been faithfully brought back to life to meet the needs of modern players. At the time, the Bad Stone was the first phase shifter with six phase stages and variable feedback.・Manual Shift mode allows you to freeze the phase effect. True bypass signal path for maximum sound quality. Effect status LEDs. Powered by a 9V battery or a JP9.6 DC-200 AC adapter (sold separately).