Pricing and availability

We compare 600+ stores and found this item at 8 stores. Prices updated .

Sweetwater
4.5 (20)
$179.00
Guitar Center
5.0 (1)
$179.00
Amazon
4.0 (20)
$179.00 New
$147.99 Used (Like New)
Reverb
4.0 (5)
$179.00 New
$92.00 Used
Thomann
4.5 (2)
$116.00
Gear4Music
£189.00

Average Price: $160

Standard/Professional

$70

$251+

Price Tier

Budget

Standard

High-end

Price History

Based on price data from 5 merchants for "Keeley Neutrino V2 Envelope Filter Pedal". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

* Product prices and availability are updated by Equipboard every 24hrs and are subject to change. Equipboard may receive compensation for purchases made at participating retailers linked on this site. This compensation does not affect what products or prices are displayed, or the order of prices listed. For more information, please refer to our affiliate disclosure.

Description

Transform your guitar signal with the Keeley Neutrino V2 Envelope Filter Pedal, an epitome of compact, analog brilliance. Designed for musicians who crave that classic autowah sound, this pedal harnesses the power of premium opto-couplers to deliver smooth, vowel-like tones without the need for a rocker pedal. Whether you're aiming for the signature "Shakedown Street" vibe or exploring new sonic landscapes, the Neutrino V2 adapts seamlessly to your pick attack, providing dynamic and expressive tonal control.

With three selectable filter types—Lowpass, Bandpass, and Highpass—alongside a Peak control, this pedal lets you sculpt your sound with precision. The power supply voltage-doubler ensures maximum headroom, maintaining pristine clarity throughout your performance. The true bypass switching keeps your tone intact, even when the pedal is not in use, and the side-mounted output control compensates for any perceived volume loss, ensuring your sound remains full and vibrant.

Perfect for guitar, bass, and keyboard, the Keeley Neutrino V2 is as versatile as it is robust. Its durable build promises longevity, making it a reliable companion on stage and in the studio. Proudly made in the USA, this pedal is a testament to quality craftsmanship and innovative design.

Key Features:

  • Opto-coupler envelope filter for smooth, vowel-like tones
  • Three filter types: Lowpass, Bandpass, Highpass
  • Peak control for tone shaping
  • Range toggle for frequency adjustment
  • Direction switch for "wah" to "aw" effects
  • Side-mounted output control
  • True bypass switching
  • 100% analog circuitry
  • Suitable for guitar, bass, and keyboard
  • Made in the USA

Product specs

Pedal Type Envelope Filter
Analog/Digital Analog
Inputs 1 x 1/4"
Outputs 1 x 1/4"
Switches Hi/Lo Range
Controls Peak, Filter Type: Highpass, Lowpass, Bandpass
True Bypass Yes
Power Source 9V DC power supply (sold separately)
Power Usage 25mA
Batteries 1 x 9V
Height 2"
Width 2.6"
Depth 4.45"

FAQs

What type of power supply does the Keeley Neutrino V2 Envelope Filter Pedal require?

The Keeley Neutrino V2 Envelope Filter Pedal requires a 9V DC power supply, which is sold separately. It also supports a 9V battery for power.

Can the Keeley Neutrino V2 be used with a bass guitar?

Yes, the Keeley Neutrino V2 works well with bass guitars. The Hi/Lo range switch allows you to adjust the envelope response to accommodate different instruments, including bass.

What filter types are available on the Keeley Neutrino V2 Envelope Filter Pedal?

The Keeley Neutrino V2 offers three filter types: highpass, lowpass, and bandpass. These options allow you to shape your sound by emphasizing different frequency ranges.

Does the Keeley Neutrino V2 Envelope Filter Pedal have true bypass?

Yes, the Keeley Neutrino V2 Envelope Filter Pedal features true bypass, ensuring your guitar signal remains unaffected when the pedal is not engaged.

How does the Hi/Lo range switch on the Keeley Neutrino V2 affect the sound?

The Hi/Lo range switch on the Keeley Neutrino V2 adjusts the sensitivity of the envelope filter, allowing you to tailor the pedal's response to different playing dynamics and instrument types.

Reviews

PROS

  • Provides unique wah quack without needing a traditional wah pedal

  • Highly responsive to dynamics and touch for expressive playing

  • Offers great Jerry Garcia-inspired tones with the right settings

  • Versatile band pass and range selectors for quick on-the-fly adjustments

  • Inspirational and fun for experimentation with different tones

  • Sounds great with specific pickup setups, especially single coils

  • Reverse switch offers additional creative tonal possibilities

CONS

  • Difficult to find a consistent sweet spot for a usable tone

  • Requires specific pickup types for optimal performance

  • Can be hard to trigger without additional gear like a boost

  • Limited to one desirable setting for some users

  • Performance varies significantly between different guitar types

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Keeley Neutrino V2 Envelope Filter Pedal.

Features and functionality

  • The Keeley Neutrino V2 is highly dependent on rig setup, with knob settings needing precise adjustment for optimal performance.

    Source
  • The Keeley Neutrino V2 has a volume output control accessible via a screw on the side, which can be cumbersome when switching guitars.

    Source
  • Some users find the Neutrino V2's performance on bass lacking compared to dedicated bass envelope filters.

    Source

User experience

  • Owners have experienced difficulty achieving desired sounds, with outputs ranging from barely noticeable to excessively resonant.

    Source
  • The Neutrino sparked interest in Keeley products among owners, despite some design choices being less user-friendly, like internal switches.

    Source

Comparisons

  • EQD Spatial Delivery is frequently favored over the Neutrino V2 for its ability to consistently produce pleasing envelope filter effects.

    Source
  • The MXR Bass Envelope Filter is favored by some bass players for its dry blend feature, offering more flexibility compared to the Neutrino V2 on bass.

    Source

Use cases and applications

  • The input signal's strength greatly influences the Neutrino V2's performance, making it sensitive to guitar output levels.

    Source
  • The Neutrino is favored by fans of the Grateful Dead and John Mayer for its ability to replicate their signature tones.

    Source
  • The Neutrino V2 may sound thin when used with bass guitars, suggesting it might not be ideal for bassists seeking a fuller sound.

    Source

Setup and maintenance

  • Placing the Neutrino after overdrive pedals helps achieve a more responsive envelope effect without aggressive string picking.

    Source

Critic Reviews

Keeley Neutrino V2 Envelope Filter Pedal review on pedal-of-the-day.com

pedal-of-the-day.com

The Keeley Neutrino V2 Envelope Filter Pedal shines with its smooth opto-coupler design, offering a rich vowel-like tone and impressive improvements in note tracking and external volume control. Musicians will appreciate its compact form and versatile filter settings. While it retains the essence of its predecessor, some may find it lacks drastic alterations. However, the enhancements make it a worthy update for funk enthusiasts and pedal aficionados alike.

positive

Based on 0 Reviews and 0 Ratings

5 star
4 star
3 star
2 star
1 star

Genre Usage

Based on how artists on Equipboard use this gear, it is most commonly found in the following genres.

2 alternative and related items for Keeley Neutrino V2 Envelope Filter Pedal, curated by the Equipboard community.

More Keeley Filter Effects Pedals

Accessories & Related Items

Artist usage

Community setups

  • Added to Equipboard on by

    grumpy
    grumpy

    Gear IQ 256