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The Electro Harmonix Nano Q-Tron Envelope Controlled Filter is a compact version of the classic Micro Q-Tron, renowned for its exceptional organic and analog sound. This versatile effect pedal transcends the ordinary, fitting seamlessly into a wide range of musical genres and delivering outstanding results on guitar, bass, keys, horns, and more. As a pioneer in envelope controlled filter technology since the 1970s, Electro-Harmonix has crafted the Nano Q-Tron with a deep heritage and expertise.


Designed to respond to your playing style and dynamics, this pedal's cutoff or centre frequency is controlled by the volume of your input signal. The result is a wide range of tone-altering effects, from subtle nuances to dynamic sweeps, auto-wah to ultra-funky sounds. With intuitive controls such as the Volume knob for output level, Drive Control for filter sweep sensitivity, and Q Control for peak bandwidth adjustment, you have complete command over the desired effect. The LP BP HP Mode Switch further enhances your sonic possibilities by selecting the frequency range the filter will pass, whether it's emphasizing the lows (LP), midrange (BP), or highs (HP). Built with a pedalboard-friendly, compact, and rugged enclosure, the Nano Q-Tron is ready to withstand the demands of any performance.

The Electro Harmonix Nano Q-Tron is a miniature version of the classic Micro Q-Tron, offering the same unique envelope-controlled filter technology in a compact size. Great news for any EHX enthusiast that wants to pack even more tone onto their existing board, or slim down their rig to make transport that much easier. The small footprint of this pedal does not compromise on its capabilities! It still offers an innovative sweep direction switch for even more customised sonic exploration.

  • Circuit: Analogue
  • Bypass: True Bypass
  • Audio: Mono
  • Power Supply: 9V battery included (optional 9.6VDC-200m (A power adapter not included)
  • Dimensions (in): 4.5 x 2.75 x 2.1
  • Current Draw: 10mA

Electro Harmonix Nano Q-Tron, Envelope Filter

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