Keeley PEDAL KEELEY NEUTRINOV2 ENVELOPE FILTER

Keeley: the "boutique" approach serving an expressive effect

Founded in Oklahoma City in 2001 by Robert Keeley, Keeley Electronics was built on an obsession: extracting maximum musicality from a circuit through careful design and rigorous component selection. Initially known for modifications and rebuilds of vintage effects (including compressors that became iconic), Keeley quickly earned the trust of top musicians before developing a full range of original pedals. The NEUTRINO V2 embodies this philosophy: an expressive envelope filter effect designed to respond naturally to your playing and offer multiple filter colors to suit your guitar, attack, and place in the mix.

Who is the NEUTRINO V2 for?

The Keeley NEUTRINO V2 is aimed at guitarists who want to add movement and "talk" to their sound without using a foot wah. It is particularly comfortable in funk (chicken-scratch rhythms, syncopated riffs), rock to thicken parts and give vocal articulation to leads, and in electro / indie contexts to create dynamic textures that respond to your picking hand.

In terms of level, it suits both beginners seeking an inspiring and immediate effect, and experienced musicians in studio or live settings: the auto-wah frees up playing, and the envelope filter quickly becomes a signature sound tool. On a pedalboard, it fits easily to sculpt dynamics and add depth to a part without changing amp or guitar.

Filter selector: three voices for three ways to "shape" the sound

The heart of the NEUTRINO V2 is its envelope filter: instead of being controlled by an expression pedal, the sweep depends on your attack. The harder you play, the more the effect opens up and becomes expressive. The filter selector lets you choose how the spectrum is filtered: High Pass for a finer, more cutting tone; Low Pass for a rounder, softer feel; and Band Pass for the classic "quack" very typical of envelope filters, ideal for funk rhythms and lines that need to stand out without becoming harsh.

This versatility makes the NEUTRINO V2 easy to adapt to different pickups (single-coil or humbuckers), output levels, and roles in a song: a subtle effect in the background mix or a very present filter for a main riff.

The sound

The NEUTRINO V2 delivers a lively and responsive filter modulation with an organic feel that follows the picking hand. It features the typical "vocal" and percussive character of auto-wah: attacks snap, notes gain definition, and rhythmic chords acquire an almost "synth-like" dynamic while remaining very guitar-like. Depending on the filter position, you can shift from a tight, cutting texture to a wider, rounder opening, which helps place the effect in a busy mix without losing note clarity.

Technical specifications

Effects	Envelope / Auto-wah	Type	sector
Format	Pedal	Use	electric guitar
EQ	Filter	Color	White

Envelope filter and auto-wah with filter selector	High Pass, Low Pass, Band Pass	Power adapter	not included
Dimensions	112 x 60 x 31 mm	Consumption	25 mA
9V battery	not included