Pricing and availability
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Average Price: $160
Standard/Professional
$70
$251+
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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.
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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
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What type of power supply does the Keeley Neutrino V2 Envelope Filter Pedal require?
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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.
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Can the Keeley Neutrino V2 be used with a bass guitar?
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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.
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What filter types are available on the Keeley Neutrino V2 Envelope Filter Pedal?
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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.
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Does the Keeley Neutrino V2 Envelope Filter Pedal have true bypass?
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Yes, the Keeley Neutrino V2 Envelope Filter Pedal features true bypass, ensuring your guitar signal remains unaffected when the pedal is not engaged.
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How does the Hi/Lo range switch on the Keeley Neutrino V2 affect the sound?
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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
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Provides unique wah quack without needing a traditional wah pedal
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Highly responsive to dynamics and touch for expressive playing
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Offers great Jerry Garcia-inspired tones with the right settings
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Versatile band pass and range selectors for quick on-the-fly adjustments
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Inspirational and fun for experimentation with different tones
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Sounds great with specific pickup setups, especially single coils
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Reverse switch offers additional creative tonal possibilities
CONS
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Difficult to find a consistent sweet spot for a usable tone
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Requires specific pickup types for optimal performance
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Can be hard to trigger without additional gear like a boost
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Limited to one desirable setting for some users
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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
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The Keeley Neutrino V2 is highly dependent on rig setup, with knob settings needing precise adjustment for optimal performance.
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The Keeley Neutrino V2 has a volume output control accessible via a screw on the side, which can be cumbersome when switching guitars.
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Some users find the Neutrino V2's performance on bass lacking compared to dedicated bass envelope filters.
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User experience
Comparisons
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EQD Spatial Delivery is frequently favored over the Neutrino V2 for its ability to consistently produce pleasing envelope filter effects.
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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.
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Use cases and applications
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The input signal's strength greatly influences the Neutrino V2's performance, making it sensitive to guitar output levels.
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The Neutrino is favored by fans of the Grateful Dead and John Mayer for its ability to replicate their signature tones.
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The Neutrino V2 may sound thin when used with bass guitars, suggesting it might not be ideal for bassists seeking a fuller sound.
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Critic Reviews
Based on 0 Reviews and 0 Ratings
Genre Usage
Based on how artists on Equipboard use this gear, it is most commonly found in the following genres.
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