The Walrus Audio FS Phaser is a Walrus Audio phaser pedal, currently around $99.99. Close alternatives include the JHS Pedals JHS 3 Series Phaser and the Warm Audio Jet Phaser. It pairs well with the Soldano SLO 100 100-Watt Tube Guitar Amplifier and the Mesa/Boogie JP-2C John Petrucci Signature 60/100-Watt.
Walrus Audio FS Phaser
Walrus Audio · pedal
The Walrus Audio Fundamental Phaser is part of the brand's affordable, streamlined Fundamental series, offering a very capable digital emulation of a classic phaser with an intuitive slider-and-switch interface. It features Light, Medium, and Heavy mode voicings plus a Feedback control that dials in anything from subtle sweep to metallic, resonant intensity, giving it more editability than classic units like the Phase 90 or Small Stone. A dry/wet Mix slider blends the effect, and the three voicings make it a genuine workhorse covering warm vintage swirl through aggressive, resonant phasing. Beginner-friendly yet board-ready, it suits players wanting versatile, good-sounding phaser tones at a budget price, from gentle classic sweeps to pronounced, feedback-laden modulation in a compact, well-built enclosure.
What stands out
“The Walrus Audio Fundamental Phaser is part of the brand's affordable, streamlined Fundamental series, offering a very capable digital emulation of a classic phaser with an intuitive slider-and-switch interface”
— from the listing
“The Fundamental Phaser is a strong entry-level phaser, offering a convincing classic phaser emulation with Light, Medium, and Heavy voicings and a useful Feedback control that adds metallic resonance, giving it more flexibility than establi…”
— from the reviews
“It features Light, Medium, and Heavy mode voicings plus a Feedback control that dials in anything from subtle sweep to metallic, resonant intensity, giving it more editability than classic units like the Phase 90 or Small Stone”
— from the listing
“Players praise the Fundamental Phaser as a budget phaser that punches above its price, with Light, Medium, and Heavy voicings and a Feedback control giving more range and metallic intensity than many classic phasers”
— from the community notes
“A dry/wet Mix slider blends the effect, and the three voicings make it a genuine workhorse covering warm vintage swirl through aggressive, resonant phasing”
— from the listing
- phaser
- metallic
- resonant
- mix
- aggressive
- digital
- resonance
- modulation
Price updated Oct 24, 2026
Genres the Walrus Audio FS Phaser is commonly used in
- Funk
cited
Inferred from shared tonal signals, not a stated genre tag.
Amps that pair well with the Walrus Audio FS Phaser
Soldano SLO 100 100-Watt Tube Guitar Amplifier
Soldano
17% matchWhat Soldano SLO 100 100-Watt Tube Guitar Amplifier brings here leans toward high gain — that's worth building a pairing around
Comes later in the signal chain
Mesa/Boogie JP-2C John Petrucci Signature 60/100-Watt
Mesa Boogie
tonal matchComes later in the signal chain
Put Mesa/Boogie JP-2C John Petrucci Signature 60/100-Watt after Walrus Audio FS Phaser
Marshall Studio JCM900 SN20H
Marshall
tonal matchComes later in the signal chain
Put Marshall Studio JCM900 SN20H after Walrus Audio FS Phaser
Synergy SL2 Module
Synergy
tonal matchComes later in the signal chain
Synergy SL2 Module goes after Walrus Audio FS Phaser in the chain
Friedman BE-Mini Head
Friedman
tonal matchComes later in the signal chain
Friedman BE-Mini Head goes after Walrus Audio FS Phaser in the chain
Hughes & Kettner Warp 7
Hughes & Kettner
tonal matchComes later in the signal chain
Hughes & Kettner Warp 7 goes after Walrus Audio FS Phaser in the chain
Egnater Tourmaster Combo 4212
Egnater
tonal matchComes later in the signal chain
Put Egnater Tourmaster Combo 4212 after Walrus Audio FS Phaser
Hughes & Kettner Coreblade
Hughes & Kettner
tonal matchComes later in the signal chain
Put Hughes & Kettner Coreblade after Walrus Audio FS Phaser
Pedals that stack with the Walrus Audio FS Phaser
Fjord Fuzz Berserk
Fjord Fuzz
19% matchWhat Fjord Fuzz Berserk brings here leans toward aggressive — that's worth building a pairing around
Comes earlier in the signal chain
Wren and Cuff Box of War Small Foot Fuzz
Wren And Cuff
19% matchWren and Cuff Box of War Small Foot Fuzz's own fuzzy character is the real reason this is worth trying
Comes earlier in the signal chain
Carl Martin DeLayla XL
Carl Martin
6% matchPut Carl Martin DeLayla XL after Walrus Audio FS Phaser in the signal chain, where it won't crowd Walrus Audio FS Phaser — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
Carl Martin Headroom
Carl Martin
6% matchRun Carl Martin Headroom after Walrus Audio FS Phaser in the signal chain, where it won't crowd Walrus Audio FS Phaser — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
Death By Audio Destruction
Death By Audio
tonal matchComes earlier in the signal chain
Put Death By Audio Destruction in front of Walrus Audio FS Phaser
Dr. Scientist Frazz Dazzler V2
Dr Scientist
tonal matchComes earlier in the signal chain
Dr. Scientist Frazz Dazzler V2 goes in front of Walrus Audio FS Phaser in the chain
Subdecay F-Bomb
Subdecay
tonal matchComes earlier in the signal chain
Put Subdecay F-Bomb in front of Walrus Audio FS Phaser
Warm Audio Jet Phaser
Warm Audio
tonal matchPut Warm Audio Jet Phaser after Walrus Audio FS Phaser: modulation reads clearest once the core tone is set
Cheaper alternatives
T-Rex Sweeper 2
T Rex
51% similarityShared character: phaser, resonant, natural resonance
Electro-Harmonix Bad
Electro-Harmonix
50% similarityShared character: dynamic control, phaser, resonant
Valco Black Hole Vintage Phaser
Valco
48% similarityShared character: phaser, subtle
Movall Audio MP-301 Van Golem
Movall Audio
94% similaritysimilar tone character
Tone City Summer Orange
Tone City
93% similaritysimilar tone character
Cordovox PH-8
Cordovox
93% similaritysimilar tone character
Boutique & premium upgrades
Walrus Audio Lillian Multi-Stage Analog Phaser
Walrus Audio
63% similarityShared character: dynamic control, phaser, resonant
Spaceman Explorer 6-Stage Phaser
Spaceman
53% similarityShared character: phaser, natural resonance, mix
Old Blood Noise Endeavors Flat Flange Shifter Device
Old Blood Noise Endeavors
50% similarityShared character: three modes, resonant, digital
EarthQuaker Devices Grand Orbiter
EarthQuaker Devices
50% similarityShared character: phaser, resonant, natural resonance
Red Witch Deluxe Moon Phaser
Red Witch
49% similarityShared character: phaser, natural resonance, subtle
Warm Audio Mutation Phasor II
Warm Audio
48% similarityShared character: phaser, modulation, subtle
Similar charactersee all similar tone character →
JHS Pedals JHS 3 Series Phaser
JHS Pedals
54% similarityShared character: phaser, resonant, natural resonance
Warm Audio Jet Phaser
Warm Audio
52% similarityShared character: phaser, natural resonance, modulation
Wylde Audio WA90
Wylde Audio
49% similarityShared character: phaser, natural resonance, compact
MXR Phase 95
MXR
49% similarityShared character: phaser, modulation, subtle
Ibanez PH Mini Phaser Mini
Ibanez
48% similarityShared character: phaser, subtle, aggressive playing
Alchemy Audio Phasor II
Alchemy Audio
93% similaritysimilar tone character
See all alternatives to the Walrus Audio FS Phaser (cheaper + boutique) →
Questions people ask
What are good alternatives to the Walrus Audio FS Phaser?+
The closest matches in character are the JHS Pedals JHS 3 Series Phaser, the Warm Audio Jet Phaser, the Wylde Audio WA90. Budget picks: T-Rex Sweeper 2, Electro-Harmonix Bad, Valco Black Hole Vintage Phaser. Boutique upgrades: Walrus Audio Lillian Multi-Stage Analog Phaser, Spaceman Explorer 6-Stage Phaser, Old Blood Noise Endeavors Flat Flange Shifter Device.
What pairs well with the Walrus Audio FS Phaser?+
Strong matches from rig and tone-complementarity evidence: Soldano SLO 100 100-Watt Tube Guitar Amplifier, Mesa/Boogie JP-2C John Petrucci Signature 60/100-Watt, Marshall Studio JCM900 SN20H — What Soldano SLO 100 100-Watt Tube Guitar Amplifier brings here leans toward high gain — that's worth building a pairing around.
How much does the Walrus Audio FS Phaser cost?+
Around $99.99 (live listing price, updated Oct 24, 2026).