Keeley electronics Neutrino Envelope Filter V2

The KEELEY Neutrino Envelope Filter V2 compact effect pedal for electric guitar, bass and keyboard, is an amazingly toneful and compact form of the classic opto-coupler envelope filter.
The Neutrino takes your 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.