Electro Harmonix Micro Qtron

Electro Harmonix Micro Qtron 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. Use the Q control to make the effect more dramatic.

The pedal is identical to the Mini Q-Tron but in a compact pedal. The envelope controlled filter is a unique type of sound modifier in which the user’s playing style controls the effect. The volume of the input signal (also called the envelope) controls the cutoff frequency or center frequency of a swept filter. As your instrument’s volume increases or decreases, so does the pitch of the filter.

Electro Harmonix Micro Qtron demo video