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Pedals & Effects

Explore a curated selection of guitar pedals and effects at Gsus4 - from boutique overdrive and distortion to delay, reverb, modulation, pitch, volume and utility pedals. Our range covers everything from classic analogue tones to modern, experimental sound design tools.

Based in Sydney, Gsus4 focuses on thoughtfully selected gear that inspires creativity, whether you are building a compact pedalboard, refining your core tone, or expanding into ambient and textural sounds. Each pedal is chosen for sound quality, build reliability and real-world usability.

Discover gain devices, preamps, buffers, switching solutions and time-based effects from respected global and boutique brands. Whether you play live, record at home, or experiment in the studio, our guitar effects collection is designed to support every stage of your signal chain.

Pedals & Effects - Gsus4
Original price $360.00 - Original price $360.00
Original price $360.00
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Current price $360.00

DSM & Humboldt BLACK CLOUDS High-Gain Distortion & Boost

DSM & Humboldt

A high-gain storm is surely brewing: DSM Humboldt’s Black Clouds was designed to be the ultimate high-gain distortion pedal, packed to the brim wi...

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Original price $360.00 - Original price $360.00
Original price $360.00
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Current price $360.00
Original price $375.00 - Original price $375.00
Original price $375.00
$375.00
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Current price $375.00

DSM & Humboldt ClearComp 1078 Dynamic Threshold Compressor Pedal

DSM & Humboldt

The talented folks at DSM & Humboldt pride themselves on working "restlessly in defining a new standard on analogue pedal fabrication, and brin...

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Original price $375.00 - Original price $375.00
Original price $375.00
$375.00
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Current price $375.00
Original price $450.00 - Original price $450.00
Original price $450.00
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Current price $450.00

DSM & Humboldt SIMPLIFIER MK2 Zero-Watt Stereo Amp ALL-IN-ONE Stereo Preamp, Amp / Cab & DI

DSM & Humboldt

DSM Humboldt Electronic's Simplifier MK2 is jam-packed with features.  Three excellent preamps include AC BRIT, American, and MS Brit characterist...

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Original price $450.00 - Original price $450.00
Original price $450.00
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Current price $450.00
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Original price $599.00 - Original price $599.00
Original price $599.00
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Current price $599.00

DSM & Humboldt SIMPLIFIER X Dual Channel Zero-Watt Stereo Amp w/ Built-In Reverb & External Footswitch

DSM & Humboldt

A Pint-sized Powerhouse of All-analog Amplifier Tone Simple in name but comprehensive in tone, the DSM Humboldt Simplifier X Zero Watt Reverb Ster...

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Original price $599.00 - Original price $599.00
Original price $599.00
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Current price $599.00
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Original price $1,274.00 - Original price $1,274.00
Original price $1,274.00
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Current price $1,274.00

JAM Pedals PINK FLOW 8-IN-1 Multi Pedal Inspired by Pink Floyd Sounds

JAM Pedals

  The Pink Flow is our proposed combination of JAM pedals designs that will Equip you with the essential tools to not only bring your “Pink” line...

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Original price $1,274.00 - Original price $1,274.00
Original price $1,274.00
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Current price $1,274.00
Original price $360.00 - Original price $360.00
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JAM Pedals Harmonious Monk MK2 Full Analog Harmonic Tremolo

JAM Pedals

Our love for harmonic and amplitude tremolo deepens ever further with Harmonious Monk mk.2! WHAT'S NEW: TAP tempo Ramp function: holding the ...

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Original price $360.00 - Original price $360.00
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Current price $360.00
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Original price $315.00 - Original price $315.00
Original price $315.00
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Current price $315.00

JAM Pedals Fuzz Phrase Silicon w/ BC107 Silicon Transistor

JAM Pedals

  Drawing inspiration from its germanium predecessor, the Fuzz Phrase Si encapsulates the rich harmonic profile and dynamic response of the esteeme...

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Original price $315.00 - Original price $315.00
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Current price $315.00
Original price $315.00 - Original price $315.00
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JAM Pedals Rattler MK2 Based on Classic RAT Distortion w/ LM308N Chip

JAM Pedals

We have always prided ourselves on refining and delivering the iconic tones of early 80s distortion boxes with our Rattler. Now, the snake has she...

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Original price $315.00 - Original price $315.00
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Current price $315.00
Original price $599.00
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Current price $487.00
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Current price $487.00

Fulltone Supa-Wah Custom Shop

Fulltone

The Fulltone Custom Shop SUPA-WAH, with its gorgeous Metallic-White finish, takes our legendary CLYDE Wah concept to the next level by offering t...

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Original price $599.00
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Current price $487.00
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Original price $225.00 - Original price $225.00
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Current price $225.00

Colortone Parasite 2026 JFET Overdrive w/ Cabinet Switch

Colortone Pedals

Colortone Parasite is a versatile JFET based ‘Full Spectrum’ Overdrive guitar pedal with Treble Boost features and active tone controls. While the...

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Original price $225.00 - Original price $225.00
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Original price $225.00
Original price $225.00 - Original price $225.00
Original price $225.00
Current price $210.00
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Current price $210.00

Colortone Optical Tremolo Vintage Analog Tremolo

Colortone Pedals

  Colortone’s Optical Tremolo is a wave shapeable analog tremolo effect pedal. With an optical photoresistor at its core the Optical Tremolo produc...

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Original price $225.00
Original price $225.00 - Original price $225.00
Original price $225.00
Current price $210.00
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Original price $255.00 - Original price $255.00
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Catalinbread Tremolo 8 Tremolo & Reverb Pedal w/ 8 Programs

Catalinbread

With 8 unique programs, the Tremolo8 shows you what volume modulation is truly capable of.In a past life, this project started as a pedal for our p...

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Original price $255.00 - Original price $255.00
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Original price $322.00 - Original price $322.00
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Catalinbread Dirty Little Secret DELUXE Marshall in a Box

Catalinbread

The ultimate Marshall Plexi emulation and fully-customizable amp-in-a-box experience. The Dirty Little Secret Deluxe represents the next logical st...

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Original price $322.00 - Original price $322.00
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Original price $225.00
Original price $225.00 - Original price $225.00
Original price $225.00
Current price $202.00
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Current price $202.00

Catalinbread CBX Gated Reverb Preamp & Reverb w/ Noise Gate & Adjustable Lag

Catalinbread

The CBX gives you full control over a classic studio trick popularized in the ‘80s by Phil Collins and Bruce Springsteen known as gated reverb. Ori...

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Original price $225.00
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Catalinbread Sinkhole Ethereal Modulated Reverb

Catalinbread

The Sinkhole is perhaps our most ethereal reverb unit to date. We’ve combined a harmonically-rich “hole” reverb with an impossibly deep four-voice ...

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Original price $225.00 - Original price $225.00
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Original price $232.00
Original price $232.00 - Original price $232.00
Original price $232.00
Current price $225.00
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Catalinbread Soft Focus Classic Shoegaze Reverb Inspired by Yamaha FX500 Gold Edition

Catalinbread

The Soft Focus patch on the Yamaha FX500 was widely used in the ‘90s by early shoegaze bands, most notably Slowdive on Souvlaki. With its roots in ...

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Original price $232.00
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Original price $232.00
Current price $225.00
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Original price $202.00 - Original price $202.00
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Catalinbread Epoch BIAS Boost, Preamp & BIAS Inspired by EP-3

Catalinbread

The Epoch Boost, a refined iteration of the iconic Maestro EP-3 Echoplex preamp, paves the way for its successor, the Epoch Bias. This new model fe...

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Original price $202.00 - Original price $202.00
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Original price $247.00 - Original price $247.00
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Catalinbread BITTERS Hyper-Deranged Multi ModFX inspired by Alesis Bitrman

Catalinbread

The Bitters is a reimagining of a hyper-deranged multifx processor, the Alesis Bitrman. Featuring knobs for Distortion, Phaser and one of four choo...

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Original price $247.00 - Original price $247.00
Original price $247.00
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Original price $225.00
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Current price $195.00
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Current price $195.00

Catalinbread Perseus DIO Synth, Sub Octave & Fuzz in One

Catalinbread

Fewer things give guitarists that fabled “riff face” more than a fuzz mixed with an analog octave down, and our original Perseus was a trailblazer ...

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Original price $225.00
Original price $225.00 - Original price $225.00
Original price $225.00
Current price $195.00
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Current price $195.00
Original price $225.00 - Original price $225.00
Original price $225.00
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Current price $225.00

Catalinbread Naga Viper MK2 Treble Booster Pedal Inspired by RangeMaster

Catalinbread

Brian May, Eric Clapton, Tony Iommi, and others pioneered the use of the Treble Booster, more specifically the Dallas Rangemaster*. One thing that ...

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Original price $225.00 - Original price $225.00
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Original price $674.00 - Original price $674.00
Original price $674.00
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Current price $674.00

JET Pedals UNITY 6 Re-Arrangeable 6Ch Loop Switcher & MIDI Controller w/ Built-in Touch Screen, WiFi & Bluetooth White

JET Pedals

The Unity6 is the worlds first MIDI Controller / Loop Switcher with a massive touchscreen, scribble strips, 6 re-arrangeable analog loops, and bui...

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Original price $674.00 - Original price $674.00
Original price $674.00
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Current price $674.00
Original price $674.00 - Original price $674.00
Original price $674.00
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Current price $674.00

JET Pedals UNITY 6 Re-Arrangeable 6Ch Loop Switcher & MIDI Controller w/ Built-in Touch Screen, WiFi & Bluetooth Black

JET Pedals

The Unity6 is the worlds first MIDI Controller / Loop Switcher with a massive touchscreen, scribble strips, 6 re-arrangeable analog loops, and bui...

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Original price $674.00 - Original price $674.00
Original price $674.00
$674.00
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Current price $674.00
Original price $112.00 - Original price $112.00
Original price $112.00
$112.00
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Current price $112.00

Goodwood Audio The Isolator Split for Wet / Dry Effects PRE-LOVED (Damaged Print)

Goodwood Audio

Isolator is designed for players that want an isolated split on their pedal board.  This is ideally used for splitting your board into two lines, d...

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Original price $112.00 - Original price $112.00
Original price $112.00
$112.00
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Current price $112.00
Original price $150.00 - Original price $150.00
Original price $150.00
$150.00
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Current price $150.00

Goodwood Audio The Isolator Split for Wet / Dry Effects

Goodwood Audio

Isolator is designed for players that want an isolated split on their pedal board.  This is ideally used for splitting your board into two lines, d...

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Original price $150.00 - Original price $150.00
Original price $150.00
$150.00
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Current price $150.00