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Keeley Neutrino V2 Envelope Filter Pedal

  • Improved Note Tracking
  • Upgraded Components
  • External Output Volume Control
  • Fresh New Look

  • The Keeley Neutrino V2 is an amazingly toneful and compact envelope filter which creates an automatic wah sound based on your pick attack. Envelope filters, or "auto-wahs" as they are often called, sound and react best when they are opto-coupler based, and the opto-couplers used in the Neutrino are particularly smooth - giving an amazing vowel-like tone. The Keeley Neutrino provides 3 filter ranges, 2 directions, 2 ranges for the frequency centre, and a Peak control, and Keeley has also engineered a power supply voltage-doubler, so the highest headroom for your tone is always maintained. An incredibly tough build means it will last for many decades to come too!


  • Envelope Filter and Auto-Wah for guitar, bass and keyboard
  • Peak Control: Sets how much “quack” there is, or how smooth you roll
  • Filter Selector: lets you choose between 3 types of filters: High, Low, and Band Pass.
  • Range Switch: HI or LO.
  • Direction Switch: Up or Down
  • True-Bypass, 9 VDC, 25 mA, 100% analog and made in the USA.

  • Whether you’re in a jam band, playing funk, or just experimenting, the Keeley Neutrino V2 delivers incredible vocal-like tone.



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