Zvex Wah Probe
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The Wah Probe has a theremin-style antenna controlling a wah. It includes a Super Hard-On boost circuit in front of the wah, with a knob to set the exact level of boost for driving your wah sound. It can be turned up high enough to make the wah crack up a little for that "something's gonna blow" sound. It gets pretty darn loud!
Manufacturer’s Suggested Retail Price: $269.99