Used Keeley Neutrino Envelope Filter Effect Pedal

This used Keeley Neutrino Envelope Filter pedal is in good condition with light wear and works perfectly, offering rich, responsive dynamic filtering for funk, rock, and experimental tones. Built with top-notch components and true bypass switching, this compact pedal delivers precise control over your tone with adjustable sensitivity, decay, and peak knobs, plus a range selector switch (Hi/Mid/Lo) to tailor the frequency response. The Neutrino reacts to your picking dynamics, making it an expressive addition to any pedalboard. Powered by standard 9V DC, it’s easy to integrate into your existing setup. Whether shaping clean rhythms or pushing the boundaries with synth-like sweeps, this envelope filter gives you studio-quality performance in a pedalboard-friendly package.