Posted by
Feb 19, 2019

Funk guitar players (or any musicians interested in expanding their sonic palette) might find a new best friend in Keeley’s Neutrino V2, an auto-wah (aka envelop filter) that expands on this classic effect by introducing a bunch of extra features:

  • 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

The design is based on an opto-coupler that was fine-tuned to sound smooth and vowel-like. A voltage-doubler enhanced power supply allows for extra headroom.

Here are some videos of it:

The Keeley Neutrino V2 is an amazingly toneful and compact form of the classic opto-coupler envelope filter.  The Neutrino takes your guitar playing and 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.  The opto-couplers used in the Neutrino are particularly smooth, giving you an amazing vowel-like tone.  The Keeley Neutrino gives you 3 filter ranges, 2 directions,  2 ranges for the frequency center and a Peak control.  Keeley has engineered a power supply voltage-doubler so you maintain the highest headroom for your tone.   An incredibly tough build means it will last for many decades to come.  Whether you’re in a jam band or playing funk, the Keeley Neutrino V2 delivers incredible vocal-like tone.

  • 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.