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  • Special Order

    Walrus Audio Silt Harmonic Fuzz FX Pedal Red

    *This is a Special Order item that we order quickly and directly from our suppliers after your purchase and ship to you within 4-10 days.*

    Born from a fresh new collaborative creation with tube expert Jim Hagerman and Walrus Audio, is the Silt Harmonic Fuzz FX Pedal.

    The Silt is an analog circuit, 2-in-1 fuzz, that enables the user to create massive fuzz tones that are rich in texture, thanks to the distinctive warmth of the 12AU7 tube at the heart of its drive section, letting you explore a wide new range of sonic landscapes. 

    Seen here in the red finish. 

    The Details
    • Special Order item
    • Expected to ship within 4-10 days
    • Effect: Harmonic Fuzz
    • Designed in collaboration with Jim Hagerman
    • 2-in-1 fuzz
    • Internal pre-amp tube
    • Rich fuzz tones
    • Warmth of a 12AU7 tube in drive section
    • All analog circuit
    • Harmonic mode adds distinctive harmonic overtones to the signal before entering the tube
    • Harmonic mode creates crispy octave-like sounds for a unique lead tone edge
    • Dedicated switch to activate Harmonic mode
    • Operates at 9v-12v, granting extra gain at 12v to push fuzz boundaries for searing tones
    • Contour switch to toggle between highpass, flat, and lowpass curves in the pre-tube EQ stage
    • Contour control ensures versatile timbres suiting different pickup styles
    • Gain ranges from subtle, distortion-like crunch to full-throttle fuzz
    • Top mounted input and output
    • True Bypass circuit
    • Hand built in Oklahoma, USA
    • Lifetime manufacturer warranty to original buyer
    • Power requirements are 9VDC (300mA minimum).
    • The use of an isolated power supply is recommended for powering all Walrus Audio Pedals. Daisy chain power supplies are not recommended.
    • Power supply not included


    • Free UK shipping from orders of £200 or more
    • Orders despatched within 1-2 working days
    • Always tracked worldwide shipping
    • Plastic free packaging as standard


    30 day peace of mind return policy, but please read our terms and conditions, returns and refunds policy before placing an order. 

    What Do Walrus Audio Say?

    Unearth the Walrus Audio Silt Harmonic Fuzz, a collaborative creation with tube expert Jim Hagerman. Wielding an internal pre-amp tube, the Silt is a two-in-one fuzz that creates massively rich fuzz tones perfect for chords and rhythmic parts or with the press of a switch, adds uniquely harmonic overtones to the signal before hitting the tube. Crafted specifically for those seeking a harmonically rich fuzz experience, the Silt boasts an analog circuit with the distinctive warmth of a 12AU7 tube as its drive section, letting you explore a unique and wild sonic landscape.


    12AU7 Tube Drive

    The Silt's 12AU7 tube section drives the warm, bone-rattling fuzz. We unearthed this sonic fossil to encase your sound in an amber warmth, while still providing the grit, growl, and harmonically complex textures that only a tube-driven fuzz can provide.

    Harmonic Mode

    Harmonic Mode acts as a frequency doubler before the drive section of the pedal. This produces crispy, octave-like sounds, lending a unique edge to your lead tones.  Try this with your guitar tone knob rolled off. 

    Contour Control for Precision Tone Sculpting

    Refine your fuzz tones with the precision of the Contour control to achieve a wide spectrum of timbres. Toggle between highpass, flat, and lowpass curves in the pre-tube EQ stage, like uncovering layers of sonic strata. Especially helpful when switching between different styles of pickups. Whether you're chasing searing leads or wooley rhythm, the Silt adapts to your style with roaring precision.

    Designed for Operation at 9v-12v for Plenty of Gain

    Supercharge your fuzz experience by operating the Silt anywhere between 9v and 12v. Running the pedal at 12v will give you an extra gain boost, letting you push the primal boundaries of fuzz to deliver the searing tones you’ve been searching for.

    True Bypass Circuit

    Maintain the integrity of your original tone with the relay bypass circuit. When disengaged, the Silt ensures your signal remains pure, allowing your guitar's natural voice to shine through undisturbed.

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