The Keeley Neutrino V2 is a Keeley wah pedal, currently around $166.47. Close alternatives include the Musitronics Mu-Tron III and the Vox V863CA Auto Wah. It pairs well with the Soldano SLO 100R and the Port City Merino Head.
Keeley Neutrino V2
Keeley · pedal
The Keeley Neutrino V2 is a compact, all-analog opto-coupler envelope filter and auto-wah that creates a touch-sensitive wah sound from your pick attack. Hand-selected opto-couplers, described as higher grade than those in vintage originals, give it a smooth, vowel-like, vocal tone. It offers three filter ranges, two sweep directions, two frequency-center ranges, and a Peak control for shaping resonance, with true bypass to avoid tone suck. It suits funk, fusion, and expressive playing where dynamic filter movement adds vocal character to lines. Simple to dial in for a satisfying auto-wah, it is a small, focused envelope filter, though some players find its output can sound thinner than they expect at certain settings.
What stands out
“Strengths are tonal smoothness, simple operation, and flexible filter shaping in a compact format”
— from the reviews
“Simple to dial in for a satisfying auto-wah, it is a small, focused envelope filter, though some players find its output can sound thinner than they expect at certain settings”
— from the listing
“It offers three filter ranges, two sweep directions, two frequency-center ranges, and a Peak control for shaping resonance, with true bypass to”
— from the listing
“It tracks pick dynamics responsively and is genuinely easy to set for a usable funk quack, with true bypass preserving tone”
— from the reviews
“give it a smooth”
— from the listing
Trade-offs
“Reviews are mixed, however, with the most common criticism being that it can sound anemic or thin to some players, , aggressive quack that fans of bolder envelope filters prefer”
— from the community notes
- filter
- auto wah
- bypass
- funk
- smooth
- peak
- simple
- vowel
Price updated Oct 24, 2026
Genres the Keeley Neutrino V2 is commonly used in
- Funk
- Soul
cited
Inferred from shared tonal signals, not a stated genre tag. - Experimental
cited
Inferred from shared tonal signals, not a stated genre tag. - Electronic
cited
Inferred from shared tonal signals, not a stated genre tag. - Reggae
cited
Inferred from shared tonal signals, not a stated genre tag.
Amps that pair well with the Keeley Neutrino V2
Soldano SLO 100R
Soldano
21% matchfills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (thin → full)
Soldano SLO 100R's own full character is the real reason this is worth trying
Comes later in the signal chain
Port City Merino Head
Port City
21% matchfills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (thin → full)
Port City Merino Head leans toward full, and that's a real, usable character to pair with
Comes later in the signal chain
Mesa/Boogie Stiletto Deuce Stage II
Mesa Boogie
tonal matchComes later in the signal chain
Into a dynamic tone, Mesa/Boogie Stiletto Deuce Stage II brings a pull toward compressed that's missing
Friedman Runt 20
Friedman
tonal matchComes later in the signal chain
Put Friedman Runt 20 in front and the mid-forward tone leans further toward high gain
EVH 010
Evh
tonal matchComes later in the signal chain
EVH 010 stacks high gain on top of the mid-forward already here
Friedman Small Box 50W EL34 Amp Head
Friedman
tonal matchComes later in the signal chain
Into a dynamic tone, Friedman Small Box 50W EL34 Amp Head brings a pull toward compressed that's missing
Egnater Tourmaster Combo 4212
Egnater
tonal matchComes later in the signal chain
Put Egnater Tourmaster Combo 4212 in front and the mid-forward tone leans further toward high gain
Mesa Boogie Rectifier Badlander EL84/25 Head
Mesa Boogie
tonal matchComes later in the signal chain
Mesa Boogie Rectifier Badlander EL84/25 Head layers high gain onto an already mid-forward signal
Pedals that stack with the Keeley Neutrino V2
Airis Effects SPEC-Defier
Airis Effects
23% matchfills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (thin → full)
Airis Effects SPEC-Defier's own high gain character is the real reason this is worth trying
Comes later in the signal chain
Cusack Music Tap-A-Fuzz
Cusack Music
21% matchRun mid-forward into Cusack Music Tap-A-Fuzz for more fuzzy on top
Comes later in the signal chain
FoxGear EchoSex
Foxgear
9% matchsits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor.
Keep Keeley Neutrino V2's smooth voice out front: FoxGear EchoSex goes after Keeley Neutrino V2 in the signal chain so its ambient voice doesn't muddy it — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
Source Audio Nemesis
Source Audio
9% matchsits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor.
Run Source Audio Nemesis after Keeley Neutrino V2 in the signal chain, where it won't crowd Keeley Neutrino V2 — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
ZVEX Fat Fuzz Factory
Zvex
tonal matchComes later in the signal chain
Run mid-forward into ZVEX Fat Fuzz Factory for more fuzzy on top
MXR Badass Variac
MXR
tonal matchComes later in the signal chain
MXR Badass Variac leans this dynamic tone toward compressed, which it doesn't make on its own
JHS Pedals JHS Cheeseball
JHS Pedals
tonal matchComes later in the signal chain
Into a dynamic tone, JHS Pedals JHS Cheeseball brings a pull toward compressed that's missing
Dunlop Custom Badass
Dunlop
tonal matchComes later in the signal chain
Dunlop Custom Badass leans this dynamic tone toward compressed, which it doesn't make on its own
Cheaper alternatives
Mooer Red Kid Talking Wah
Mooer
60% similarityShared character: wah, filter
Maestro Agena
Maestro
58% similarityShared character: fusion, filter, pick attack
Dunlop Cry Baby
Dunlop
55% similarityShared character: peak, wah, natural resonance
Electro-Harmonix Nano BassBalls
Electro-Harmonix
54% similarityShared character: fusion, wah, vocal
ICA Gyrator
Ica
54% similarityShared character: wah, natural resonance, vocal
Electro-Harmonix Cock Fight Plus
Electro-Harmonix
53% similarityShared character: wah, vocal, filter
Boutique & premium upgrades
Similar charactersee all similar tone character →
Musitronics Mu-Tron III
Musitronics
66% similarityShared character: fusion, vocal, filter
Vox V863CA Auto Wah
Vox
63% similarityShared character: fusion, wah, vocal
Emma DiscomBOBulator
pedal
59% similarityShared character: wah, filter, pick attack
Ibanez Twin Peaks
Ibanez
59% similarityShared character: peak, wah, natural resonance
MXR Q Zone Fixed Wah
MXR
58% similarityShared character: peak, wah, filter
Guyatone WRm5 Wah Rocker
Guyatone
57% similarityShared character: fusion, wah, filter
See all alternatives to the Keeley Neutrino V2 (cheaper + boutique) →
Questions people ask
What are good alternatives to the Keeley Neutrino V2?+
The closest matches in character are the Musitronics Mu-Tron III, the Vox V863CA Auto Wah, the Emma DiscomBOBulator. Budget picks: Mooer Red Kid Talking Wah, Maestro Agena, Dunlop Cry Baby. Boutique upgrades: Xotic Robotalk 1 New Old Stock, Ashdown Type 23 Three Band Filter, Pigtronix Resotron Analog Tracking Filter.
What pairs well with the Keeley Neutrino V2?+
Strong matches from rig and tone-complementarity evidence: Soldano SLO 100R, Port City Merino Head, Mesa/Boogie Stiletto Deuce Stage II — Soldano SLO 100R's own full character is the real reason this is worth trying.
How much does the Keeley Neutrino V2 cost?+
Around $166.47 (live listing price, updated Oct 24, 2026).
Compare
- vs Animals Pedal Double Spy Mission is Imp Filter
- vs Ashdown Type 23 Three Band Filter
- vs MXR M120 Auto Q Wah