MSD Silvermachine Wah Pedal  From MSD

With its 1.7kg weight and its low-profile stainless steel housing, the Silver Machine sits firmly on the ground and is highly resistant to unwanted movement as well as being comfortable for the musician to use. The unique Automagic sensor activates the effect as soon as a foot is laid upon the pedal. This allows it to rapidly bring the effect into play without any additional pressing of footswitches. The wide and carefully chosen angle over which the pedal operates guarantees precise control over the sound and the effect, and a newly-developed ultra-low-noise circuit means that switching is practically noiseless.The filter itself also displays extremely low noise characteristics and makes the device ideal for studio use.