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Pedals & Effects - Gsus4

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.

Original price $310.00
Original price $310.00 - Original price $310.00
Original price $310.00
Current price $289.00
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Current price $289.00

Warm Audio | CENTAVO | Accurate Recreation of KLON Pedal w/ MOD Switch

Warm Audio

The Warm Audio Centavo is an accurate recreation of the most sought-after overdrive pedal of the 90’s and beyond. Whether you’re after the fabled ...

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Original price $310.00
Original price $310.00 - Original price $310.00
Original price $310.00
Current price $289.00
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Current price $289.00
Original price $255.00
Original price $255.00 - Original price $255.00
Original price $255.00
Current price $230.00
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Current price $230.00

Warm Audio | Foxy Tone Box | Fuzz w/ NOS Fairchild Transistors & Germanium Diodes

Warm Audio

The Warm Audio Foxy Tone Box is a hyper-accurate recreation of one of the most sought-after and beloved fuzz pedals of all time - used in the earl...

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Original price $255.00
Original price $255.00 - Original price $255.00
Original price $255.00
Current price $230.00
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Current price $230.00
Original price $335.00
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Original price $335.00
Current price $309.00
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Current price $309.00

Warm Audio | JET Phaser | Recreation of "JET' w/ Fuzz & Phase Combinations

Warm Audio

The seventies were an amazing time, as bell-bottoms, chains and afros dominated the fashion scene and the swoosh and swirl of phaser effects were...

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Original price $335.00
Original price $335.00 - Original price $335.00
Original price $335.00
Current price $309.00
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Current price $309.00
Sold out
Original price $1,299.00
Original price $1,299.00 - Original price $1,299.00
Original price $1,299.00
Current price $1,249.00
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Current price $1,249.00

Empress Effects | ZOIA Euroburo | Digital Modular System

Empress Effects

The ZOIA Euroburo is a digital modular system that can be placed in your modular system, a real Russian nesting doll situation. We added a headph...

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Original price $1,299.00
Original price $1,299.00 - Original price $1,299.00
Original price $1,299.00
Current price $1,249.00
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Current price $1,249.00
Original price $725.00
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Original price $725.00
Current price $499.00
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Current price $499.00

Empress Effects | Multidrive | Fuzz, Overdrive and Distortion Blender

Empress Effects

The idea of blending amps together has been a studio trick used on countless recordings over the years. Being able to blend the strengths of ...

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Original price $725.00
Original price $725.00 - Original price $725.00
Original price $725.00
Current price $499.00
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Current price $499.00
Original price $1,050.00
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Current price $799.00
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Current price $799.00

Empress Effects | Reverb | 32 Studio Quality Ambient Algorithms

Empress Effects

Realistic simulations of spaces, as well as never-before-heard surreal ambiances are represented with stunning sound quality. Sporting stereo in...

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Original price $1,050.00
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Original price $1,050.00
Current price $799.00
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Original price $695.00
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Current price $599.00
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Current price $599.00

Empress Effects | Heavy | Dual-channel Distortion

Empress Effects

In this aptly named box you'll find a huge range of killer high gain tones. From crisp, mid-driven 80's metal, to scooped, modern down-tuned bru...

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Original price $695.00
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Original price $695.00
Current price $599.00
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Original price $999.00
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Current price $799.00
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Current price $799.00

Empress Effects | ECHOSYSTEM | Digital Multi-Delay | Studio Grade 42+ Algorithms

Empress Effects

Spanning the gamut of known delay possibilities and beyond, the Echosystem could be the ultimate delay-crafting tool. Faithful emulations of class...

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Original price $999.00
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Original price $999.00
Current price $799.00
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$245.00
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Current price $245.00

Empress Effects | Distortion | True Bypass Pedal w/ 3 Distortion Types

Empress Effects

From mild to crunch to lead, the empress distortion does it all. This true bypass pedal offers three flavors of distortion while retaining a supe...

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Original price $245.00 - Original price $245.00
Original price $245.00
$245.00
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Current price $245.00
Original price $595.00
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Current price $469.00
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Current price $469.00

Empress Effects | Compressor MKII | Compressor Pedal w/ Sidechain | Silver Sparkle

Empress Effects

When we released our original Compressor back in 2011, it quickly became a favourite among guitar and bass players alike who were searching for so...

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Original price $595.00
Original price $595.00 - Original price $595.00
Original price $595.00
Current price $469.00
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Current price $469.00
Sold out
Original price $595.00
Original price $595.00 - Original price $595.00
Original price $595.00
Current price $469.00
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Current price $469.00

Empress Effects | Compressor MKII | Compressor Pedal w/ Sidechain | Blue Sparkle

Empress Effects

When we released our original Compressor back in 2011, it quickly became a favourite among guitar and bass players alike who were searching for so...

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Original price $595.00
Original price $595.00 - Original price $595.00
Original price $595.00
Current price $469.00
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Current price $469.00
Sold out
Original price $595.00
Original price $595.00 - Original price $595.00
Original price $595.00
Current price $489.00
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Current price $489.00

Empress Effects | Bass Compressor | Voiced for BASS w/ Sidechain | Silver Sparkle

Empress Effects

VOICED FOR BASS WITH 10Hz-20kHz FREQUENCY RESPONSE When we released our original Compressor back in 2011, it quickly became a favourite among gui...

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Original price $595.00
Original price $595.00 - Original price $595.00
Original price $595.00
Current price $489.00
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Current price $489.00
Original price $595.00
Original price $595.00 - Original price $595.00
Original price $595.00
Current price $489.00
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Current price $489.00

Empress Effects | Bass Compressor | Voiced for BASS w/ Sidechain | Blue Sparkle

Empress Effects

VOICED FOR BASS WITH 10Hz-20kHz FREQUENCY RESPONSE When we released our original Compressor back in 2011, it quickly became a favourite among gui...

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Original price $595.00
Original price $595.00 - Original price $595.00
Original price $595.00
Current price $489.00
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Current price $489.00
Original price $1,099.00
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Current price $869.00
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Current price $869.00

Empress Effects | ZOIA | Modular Synth Pedal | w/ Reverb, Delay, Chorus, Flanger & more!

Empress Effects

WHAT’S A ZOIA?The ZOIA is basically a modular synthesizer in pedal form. Instead of being a delay effect or tremolo, the ZOIA provides the module...

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Original price $1,099.00
Original price $1,099.00 - Original price $1,099.00
Original price $1,099.00
Current price $869.00
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Original price $235.00
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Current price $199.00
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Current price $199.00

Empress Effects | BUFFER | Complete Input & Output Interface

Empress Effects

The Empress buffer was designed to be the complete I/O interface for the pedal board, while maintaining the highest fidelity to your guitar's sign...

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Original price $235.00
Original price $235.00 - Original price $235.00
Original price $235.00
Current price $199.00
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Current price $199.00
Original price $325.00
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Original price $325.00
Current price $295.00
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Current price $295.00

Empress Effects | BUFFER+ | w/ Noise Filter & Boost | Complete Input & Output for Pedalboard

Empress Effects

The Empress buffer+ was designed to be the complete I/O interface for the pedal board, while maintaining the highest fidelity to your guitar’s si...

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Original price $325.00
Original price $325.00 - Original price $325.00
Original price $325.00
Current price $295.00
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Current price $295.00
Original price $399.00 - Original price $399.00
Original price $399.00
$399.00
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Current price $399.00

KarDian | Y.O.S Smoggy | On Board Overdrive Character Module

KarDiaN

Inheriting the DNA of the Smoggy OverdriveIn 2015, the legendary Smoggy Overdrive pedal was created by Mr. Yoshida of Y.O.S. Guitars. 3 Knobs is th...

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Original price $399.00 - Original price $399.00
Original price $399.00
$399.00
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Current price $399.00
Original price $249.00 - Original price $249.00
Original price $249.00
$249.00
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Current price $249.00

KarDiaN | Character Module Box | Turn Preamp & Overdrive Module into a Pedal | Made in Japan

KarDiaN

KarDiaN Character Module Box is specifically made for KarDiaN's Characterr Modules.  The housing is made out of Aluminum and can hold any character...

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Original price $249.00 - Original price $249.00
Original price $249.00
$249.00
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Current price $249.00
Original price $299.00 - Original price $299.00
Original price $299.00
$299.00
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Current price $299.00

KarDian | IRODORI | On Board Preamp Boost Character Module

KarDiaN

Beeline Treatment by irodori onboard"irodori" was born in 2017 by Mr. Imanishi of Limetone Audio. It was the winner of that year's effects contest...

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Original price $299.00 - Original price $299.00
Original price $299.00
$299.00
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Current price $299.00
Original price $249.00 - Original price $249.00
Original price $249.00
$249.00
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Current price $249.00

KarDian | IODOFORM "SILVER" | On Board Overdrive Character Module

KarDiaN

"Iodoform" is not an onboard preamp. Rather than amplifying and flavouring the sound as a preamp, Iodoform was developed from the perspective of ac...

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Original price $249.00 - Original price $249.00
Original price $249.00
$249.00
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Current price $249.00
Original price $449.00 - Original price $449.00
Original price $449.00
$449.00
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Current price $449.00

KarDian | KND-LOW for BASS | Volume Pedal w/ AMTRANS Conmponents & Curve Control | For Bass

KarDiaN

The KarDian KND-LOW is a modded version of the Ernie Ball VP Junior. The KND-LOW for BASS was born out of a desire to make the volume pedal not jus...

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Original price $449.00 - Original price $449.00
Original price $449.00
$449.00
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Current price $449.00
Original price $449.00 - Original price $449.00
Original price $449.00
$449.00
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Current price $449.00

KarDian | KND-LOW | Volume Pedal w/ AMTRANS Conmponents & Curve Control | For Guitars

KarDiaN

The KND-LOW was born out of a desire to make the volume pedal not just a device that changes the volume, but a product that creates new music by us...

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Original price $449.00 - Original price $449.00
Original price $449.00
$449.00
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Current price $449.00
Original price $499.00 - Original price $499.00
Original price $499.00
$499.00
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Current price $499.00

KarDiaN | Chloroform | CHCL3 | Transparent Overdrive | Made in Japan

KarDiaN

The world of vividly colEored glasswork. It's a symphony of craftsmanship, from the raw materials to the crafting techniques. One of the p...

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Original price $499.00 - Original price $499.00
Original price $499.00
$499.00
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Current price $499.00
Original price $499.00 - Original price $499.00
Original price $499.00
$499.00
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Current price $499.00

KarDiaN | Vitamin C | C6H8O6 | Fuzz Distortion Based on Big Muff | Made in Japan

KarDiaN

The Big Muff is one of the most popular fuzz pedals in the world. The vintage Big Muff pedal has a fascinating sound that has captured th...

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Original price $499.00 - Original price $499.00
Original price $499.00
$499.00
$499.00 - $499.00
Current price $499.00