Electro-Harmonix Micro Q-Tron Envelope Pedal

The Micro Q-Tron is a smooth envelope filter with a funky wah-wah tone. The filter is controlled by its internal envelope follower, analyzing the volume of your notes and the dynamics of your playing to directly sweep the filter's center or cutoff frequency. A stronger attack or louder note will produce a wider frequency sweep while softer playing produces more subtle effects. Three switchable modes include Low Pass, Band Pass, and High Pass, which each determine what frequency range the filter will pass. Using the Q control will make the effect even more dramatic. This pedal is perfect for both electric and bass guitars.