JHS Pedals 424 Gain Stage Preamp Pedal

Retailing in the region of £249.00

On the menu for January 2026 are the JHS Guitar Pedals, freshly added and carefully selected. These New units are available to order online with fast, secure delivery from trusted UK retailers. Read on for full details, specifications, demos, videos, reviews, and the best places to buy the JHS Guitar Pedals today.


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Description

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On the menu for January 2026 are the JHS Guitar Pedals, freshly added and carefully selected. These New units are available to order online with fast, secure delivery from trusted UK retailers. Read on for full details, specifications, demos, videos, reviews, and the best places to buy the JHS Guitar Pedals today.

The JHS 424 Gain Stage captures the elastic, lo-fi charm of plugging a guitar straight into a portable tape recorder, now in a compact pedal. If you’re looking that Mk.Gee vibe or tones heard on records by Mac DeMarco, Radiohead, Steve Lacy, Omar Apollo and newer artists like D4vd, this is your all-in-one shortcut. Expect rubbery cleans, high headroom and smashed-out fuzz that have reappeared in bedroom pop and indie records.

This pedal gives you that exact texture without hauling round a vintage recorder. It faithfully recreates the 424 MKI circuit using the original UPC4570 and NJM4565 op-amps and the same control layout, so the quirks that made the originals sing are all here: two gain stages, master volume and simple tone shaping that respond like the real thing.

Use the 424 as a Direct Input to capture gooey, saturated colour straight into your interface or mixer via the balanced XLR output. If you prefer playing through an amp, the pedal stacks superbly in front of tube and solid-state heads, acting as a unique gain stage, overdrive or full-on broken fuzz depending on how far you push the two gain controls. The buffered bypass and soft-touch switching keep the pedal stage-friendly and low-noise, while the Ground Lift switch helps eliminate hum when using the XLR output in studio or live environments.

Beyond faithful recreation, the pedal is purpose-built for modern rigs. The 1/4″ output and XLR DI can be used simultaneously, letting you split to amp and desk at once. Small enough to live on a pedalboard or on your desk, it runs from a 9V DC centre-negative supply and draws 50mA. 

In short, the JHS 424 Gain Stage gives you the authentic tape recorder tone in a pedal: from tight, elastic cleans to crunchy channel saturation and gloriously broken fuzz, with DI and amp-ready outputs for both studio and stage use.

Key Features

  • Authentic 424 MKI Circuit – Faithfully reproduced circuitry using UPC4570 and NJM4565 op-amps for the original tonal character and response; delivers the same elastic cleans and crunchy fuzz heard on classic tape-machine recordings, plus the sought-after sounds of artists like Mk.Gee, D4vd, and more.
  • Balanced XLR DI Output – Send a direct, studio-ready signal straight to a mixer or interface while retaining the pedal’s lo-fi texture. Use alongside the 1/4″ output for amp + desk splitting.
  • Two Gain Stages plus Master – TRIM and CHANNEL controls replicate the tape recorder workflow, letting you sculpt everything from subtle warmth to full-on tortured fuzz, with a MASTER control to set overall output.
  • Practical Studio Features – Ground Lift switch for hum elimination, buffered bypass and soft-touch switching for quiet operation, and compact dimensions for easy pedalboard or desk placement.

Specifications

Controls

  • Volume (Master) – Controls overall output level
  • Gain 1 (Trim) – Input preamplification control
  • Gain 2 (Channel) – Second gain stage level
  • Bass – Cuts or boosts low frequencies
  • Treble – Cuts or boosts high frequencies

Inputs / Outputs

  • Input – Top 1/4″ jack (right)
  • Output – Top 1/4″ jack (left)
  • XLR Output – Balanced DI on left side; can be used simultaneously with 1/4″ output
  • Ground Lift – Dip switch on left side to reduce hum when using XLR

Power & Electrical

  • Power: 9V DC, centre negative
    • Don’t exceed 9V – this may damage the pedal!
  • Current Draw: 50 mA
  • Bypass: Buffered bypass; soft-touch switching

Physical

  • Dimensions: 66 mm x 122 mm x 41 mm (approximately 2.6″ x 4.8″ x 1.6″)
  • Weight: Compact pedalboard-friendly design

Additional information

Weight 0.5 kg

Brand

JHS

JHS Pedals is a prominent manufacturer of guitar effects pedals, known for their high-quality craftsmanship, innovative designs, and commitment to tone. Founded in 2007 by Josh Scott in Kansas City, Missouri, JHS Pedals has quickly gained a reputation for producing boutique-quality pedals that cater to a wide range of musical styles and preferences.

JHS offers a diverse lineup of effects pedals, including overdrive, distortion, fuzz, modulation, delay, reverb, and more. The company is known for its meticulous attention to detail and dedication to producing pedals that deliver exceptional tone and versatility. Many of their pedals are designed to capture the tones of classic vintage effects while incorporating modern features and improvements.

In addition to their standard pedal lineup, JHS Pedals also offers a range of signature pedals in collaboration with renowned artists and musicians. These pedals are designed to meet the specific needs and preferences of the artists, providing them with unique tones and features for their playing style.

With a commitment to innovation and a passion for tone, JHS Pedals continues to be a trusted name in the guitar effects industry, providing musicians with inspiring tools to shape their sound and creativity.

Category

Guitar Pedals

Tags

DI

Fuzz

A fuzz pedal is one of the earliest and most aggressive forms of distortion, turning your clean guitar signal into a thick, saturated wall of sound. It works by clipping the waveform almost flat, creating a compressed, gritty tone full of harmonic overtones. The result is raw, unruly, and unmistakable — from the sputtering breakup of vintage germanium circuits to the searing sustain of modern silicon designs. Fuzz pedals react strongly to your guitar’s volume and pickup choice, making them dynamic tools for expressive players.

Whether you’re chasing the classic tones of Hendrix and the Smashing Pumpkins or exploring heavy, experimental textures, fuzz remains a favourite for its personality and unpredictability. It can sound smooth and sustaining, or wild and velcro-like, depending on how it’s set up. A good fuzz pedal cuts through the mix while adding thickness and attitude, turning any riff or lead line into something bold and unmistakably alive.

New

This is brand new, fresh in, and a UK warranty is included. New Gear always comes from trusted UK music retailers.

Overdrive

Like a golden layer of melted cheese — warm, gooey, and just put it all over. It adds just the right amount of richness and grit, turning a clean signal into something smooth and savoury. Designed to mimic the natural breakup of a tube amp pushed to its sweet spot, overdrive delivers the flavour of classic rock and blues in every bite. From creamy mid-gain warmth to crisp edge-of-breakup sparkle, it’s the comfort food of guitar tone — simple, satisfying, and endlessly versatile. Whether it’s a mild crunch or a full-bodied roar, overdrive is where good taste begins.

Preamp

A preamp pedal shapes and boosts your guitar’s signal before it reaches your amp or recording interface, giving you control over tone, gain, and headroom. It acts as the first stage of amplification, adding warmth, clarity, and character while preparing your signal for the next part of the chain. Some preamps emulate the response of classic valve circuits, while others offer clean, transparent tone shaping ideal for acoustic instruments or direct recording setups.

Used on its own, a preamp pedal can serve as the foundation of your tone, providing a consistent core sound wherever you play. When combined with other effects, it enhances dynamics and helps each pedal sound more defined and natural. Whether you’re looking to push your amp harder, bring life to a dull signal, or refine your sound for the studio, a good preamp pedal adds presence, punch, and musicality to any rig.

used

Vibe

Volume

Volume pedals control the output level of a guitar signal using a foot-operated treadle. They allow smooth volume swells, dynamic control during playing, and easy muting between songs. Volume pedals can be placed at different points in the signal chain to either control overall loudness or adjust gain and drive behaviour when positioned before distortion or overdrive pedals.