Electro Harmonix EHX Effects Interface Hardware Plugin Pedal

£365.00

On the menu for January 2026 are the Electro Harmonix 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 Electro Harmonix Guitar Pedals today.


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On the menu for January 2026 are the Electro Harmonix 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 Electro Harmonix Guitar Pedals today.

The Electro Harmonix Effects Interface Hardware Plugin is a compact, multipurpose interface pedal that lets you blend your favourite stompboxes and software plugins into one seamless hybrid rig. Designed for both studio and stage, it makes it effortless to send DAW tracks out to your pedals, run your guitar through in the box effects, or simply use it as a straightforward 2 in 2 out USB audio interface, all via a single USB C connection.

Instead of juggling reamp boxes, DI units and complicated routing, the Effects Interface gives you a clean, intuitive way to move audio between your computer and your physical gear. Whether you want to warm up virtual instruments with a preamp pedal, turn a plugin into a pedalboard ready effect, or track ideas straight into your DAW, this pedal keeps your workflow fast and creative.

At its heart are three flexible operating modes that cover most real world scenarios. Hardware Plugin Mode lets you treat your pedals like outboard processors on any DAW track. Pedalboard Mode flips the script, turning your plugins into part of your live signal chain. Audio Interface Mode gives you a reliable stereo USB interface with dedicated level controls and headphone monitoring, ideal for recording, practising and mixing.

With stereo inputs and outputs, level sliders and a dedicated headphone output, the Effects Interface is equally at home on a desk or a pedalboard. It is a powerful solution for guitarists, producers and sound designers who want the tactile feel of real pedals and the flexibility of modern plugins without the usual technical headaches.

Three Flexible Operating Modes

The Effects Interface operates in Hardware Plugin Mode, Pedalboard Mode and Audio Interface Mode, so it can adapt to how you work. Use it to send DAW tracks through pedals, route your live instrument through plugins, or function as a traditional 2 in 2 out USB audio interface, all from the same compact unit.

Hardware Plugin Mode

In Hardware Plugin Mode you can insert your favourite pedals into DAW sessions just like software plugins. Route vocals through an analogue delay, horns through a wah, or MIDI instruments through a preamp pedal, and enjoy the familiar hands on control of real hardware while keeping all the convenience of in the box mixing.

Pedalboard Mode

Pedalboard Mode lets you feed your guitar or instrument into the DAW, process it with plugins, then return it to your physical signal chain. This effectively turns any plugin into a pedal you can place in your rig, so you can run a software preamp into a live amp or add unique plugin only effects to your board without changing your playing setup.

Audio Interface Functionality

Used as a standard USB audio interface, the Effects Interface provides two inputs and two outputs with stereo operation, plus a headphone output with its own volume control. This makes it a simple, tidy solution for recording, practising silently, or monitoring your hybrid pedal and plugin setups directly from your computer.

Key Features

  • Multipurpose Studio and Stage Interface Pedal – Designed to sit comfortably on a desk or pedalboard, the Effects Interface bridges the gap between live rigs and recording setups, so you can use the same core tools in rehearsal, on stage and in the studio.
  • Hardware Plugin Mode for Pedal Integration – Treat your pedals like DAW plugins by routing tracks out through the Effects Interface and back in again, giving you tactile control and analogue character on any recorded source without complex reamping chains.
  • Pedalboard Mode for Plugin Integration – Turn your favourite plugins into part of your physical signal chain by sending your instrument into the DAW and back to your board, unlocking sounds that only exist in software while keeping your familiar playing environment.
  • 2 In 2 Out USB Audio Interface with Monitoring – Use the unit as a straightforward stereo USB interface with level sliders and a dedicated headphone output, providing clear, controllable monitoring for recording, practising and mixing with minimal extra gear.

Specifications

General

  • Product: Electro Harmonix Effects Interface Hardware Plugin
  • Type: Multipurpose interface pedal
  • Circuit: Digital
  • Audio: Stereo

Connectivity and Modes

  • Inputs: Stereo
  • Outputs: Stereo
  • USB: USB C connection
  • Operating Modes: Hardware Plugin Mode, Pedalboard Mode, Audio Interface Mode
  • Audio Interface Configuration: 2 in 2 out USB audio interface

Controls and Features

  • Dedicated level control sliders for stereo inputs and outputs
  • Headphone output with volume control

Power and Accessories

  • Power supply included
  • USB C cable included

Dimensions

  • Dimensions (inches): 5.75 x 4.5 x 2.25

Additional information

Weight 0.5 kg

Brand

Electro Harmonix

Electro-Harmonix (EHX) is a legendary manufacturer of guitar pedals and audio electronics, renowned for their distinctive sound and pioneering designs. Established in 1968 by Mike Matthews, EHX has played a significant role in shaping the landscape of effects pedals. The company’s pedals are celebrated for their innovative circuits and unique tones, earning them a dedicated following among musicians across genres. From classics like the Big Muff Pi fuzz to modern favorites like the POG octave generator, Electro-Harmonix pedals are known for their versatility and sonic character.

EHX’s product lineup spans a wide range of effects categories, including distortion, modulation, delay, and reverb, among others. Their pedals often feature intuitive controls and rugged construction, making them suitable for both stage and studio use. In addition to their iconic standalone pedals, Electro-Harmonix has also produced notable units such as the Memory Man delay/echo and the Holy Grail reverb, which have become staples in many guitarist’s rigs. With a legacy of innovation and a commitment to quality, Electro-Harmonix continues to be a leading force in the world of guitar effects, inspiring musicians to explore new sonic possibilities.

Category

Guitar Pedals

Tags

Delay

A delay pedal records your signal and plays it back after a set time, creating echoes that can range from tight, slapback repeats to long, atmospheric trails. It’s one of the most versatile effects, used to thicken tones, add rhythmic depth, or build spacious, ambient layers. Analogue delays offer warm, decaying repeats that blend naturally with your tone, while digital units provide pristine echoes with precise control over time, feedback, and mix levels.

From classic rockabilly and tape-style echoes to modern looping and shimmer effects, delay pedals have become essential tools for shaping sound. They can make solos soar, rhythms pulse, or transform simple chord progressions into cinematic textures. Whether used subtly to add dimension or boldly to create soundscapes, a good delay pedal can completely redefine the feel and atmosphere of your music.

DI

MIDI

MIDI pedals use the Musical Instrument Digital Interface standard to communicate with other guitar pedals, effects units, and hardware. They allow control over presets, parameters, and switching across multiple devices from a single controller. MIDI integration makes it possible to build complex, synchronised pedal setups while keeping control simple and consistent.

New

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

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

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.

Wah

Wah refers to an expressive filter effect that sweeps through a range of frequencies, creating a vocal-like “wah” sound. Controlled in real time with a foot-operated treadle, it allows players to emphasise different parts of the frequency spectrum as they play. Wah pedals are commonly used for lead guitar, funk rhythm work, and expressive solos, responding closely to picking dynamics and foot movement.

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