Nano Q-Tron Envelope Filter

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New inventory ships 10/28/25

Professor’s Notes
It’s small, but it’s alive. The Nano Q-Tron reacts to you — hard pick, big sweep; light touch, gentle motion. Funky filter fun for guitar, bass or anything that grooves.

Description
The Nano Q-Tron is a compact, board-friendly envelope-controlled filter pedal designed to respond dynamically to your playing. With controls for Volume, Drive (envelope sensitivity), Q (filter peak bandwidth) and a 3-mode switch (Low-Pass / Band-Pass / High-Pass), you can sculpt everything from subtle vowel tones to full-on funky auto-wah sweeps.
Switching modes lets you emphasise lows, mids or highs; the Drive knob increases how far the filter jumps when you play hard; the Q knob determines how narrow or wide the filter curve becomes; and the Volume control lets you match output with your clean signal. With true bypass, a rugged nano chassis (approx. 4.5″ x 2.75″ x 2.1″) and a 9 V battery (or optional adapter) support, it’s ready for any rig.

Specifications

• Type: Analog envelope-controlled filter pedal
• Controls: Volume, Drive, Q, Mode switch (LP / BP / HP)
• Bypass: True Bypass switching
• Audio: Mono input / mono output
• Power: 9 V battery included (optional 9.6 VDC adapter not included) ; current draw ~10 mA
• Dimensions: 4.5″ x 2.75″ x 2.1″ approximate
• Enclosure: Rugged die-cast housing

What’s Included

• Electro-Harmonix Nano Q-Tron Envelope Filter pedal
• 9 V battery (installed)
• Original packaging and documentation