WR-2

The Guyatone WR-2 Wah Rocker is an auto-wah pedal that was produced in Japan during the 1980s. The pedal features controls for threshold and decay, which respond to the player's dynamics. The variable threshold determines the strength of the effect, while the decay control determines the speed of the effect. The WR-2's band-pass filtering makes it ideal for use with electric guitars and keyboards. Additionally, many bass players use it with a dry signal mixed in for added low-end beef.

The WR-2 Wah Rocker is known for its unmistakable mid-range quack, earning it the nickname "Duck Box." It has been a secret weapon for many professional musicians and has appeared on recordings by artists such as Lenny Kravitz, Stevie Salas, TM Stevens, Sass Jordan, David Torn, Bill Laswell, and Powerman 5000.

The pedal's high threshold settings yield synth-like filter sweeps, while lower settings produce throaty tones reminiscent of a half-cocked wah pedal. Pound for pound, it's considered the funkiest filter that money can buy.