Xotic Wah XW-1 is modeled based on the Holy Grail wah, 1967-1968 Italian-built Clyde McCoy Wahs. With the Xotic XW-1 you don't get one or three sounds in one pedal, you get unlimited sounds with unique controls that shape and contour your sound the way you hear it! The adjustability and flexibility of the XW-1 makes this one of the most versatile wah pedals available today! Features Self-lubricating nylon bushing pivot for quiet and smooth operation with fully-adjustable rocker pedal tension. Gold contact relay true bypassing, which allows for transparent true bypass tone, while incorporating ultra reliable switching with minimum one million life cycle. 20% smaller footprint than conventional wah pedals. Fully adjustable Wah-Q and Bias controls and a two-band EQ with +/-15 dB center-detent potentiometers optimize the voicing for different playing styles and gear. Fuzz friendly buffering circuit assures a great sounding wah tone with your favorite fuzz pedals. Specifications Dimensions: D 8.27" (210mm) W 3.94" (100mm) H 2.64 (67mm) Weight: 2.16lb. (980g) Bypass: True Bypass Switching Power Consumption: 9VDC/5mA Battery Type: 9VDC (006P) x 1 AC Adapter (Optional): 9VDC-18VDC, Negative Tips (Regulated recommended) Input Impedance: 1M ohm Output Impedance: 10k ohm Nominal Input Signal Level: -20 dBV Nominal Output Signal Level: -20 dBV