Add classic envelope-controlled filtering effects to your instrument with the Nano Q-Tron from Electro-Harmonix, an experienced original pioneer in this effect since the 1970s. The pedal responds to the player's dynamics by using the volume of the input signal to control the frequency of the filter's cutoff (in HP and LP modes) or center section (in BP mode).

In addition to the Mode Selection knob, Volume, Drive, and Q (width) controls are available for in-depth sound sculpting. Whether you're looking to create subtle tone-altering colors or funky auto-wah effects that are super-responsive to your playing, the Nano Q-Tron offers a wealth of dynamic filtering possibilities that sound great on guitar, bass, horns, keys, and more.