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A/DA Harmony Synthesizer

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Page last updated Aug 11, 2025

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Step into a world of sonic exploration with the A/DA Harmony Synthesizer, a standout in the realm of multi-effects pedals. Designed for guitarists seeking to expand their sonic palette, this innovative pedal offers a rich array of harmonic textures and modulation options. Perfect for both studio sessions and live performances, the A/DA Harmony Synthesizer combines advanced digital processing with intuitive controls, allowing musicians to craft unique sounds effortlessly.

With its polyphonic harmony generator, this pedal allows you to create complex harmonies that follow your playing accurately, offering a new dimension to your music. The pedal’s user-friendly interface ensures ease of use while providing a comprehensive range of effects like reverb, delay, and chorus. Each parameter is adjustable, giving you the freedom to tweak and tailor the sound to match your musical vision.

The A/DA Harmony Synthesizer is also equipped with MIDI compatibility, providing seamless integration into your existing setup. This feature allows for synchronized effects changes and more dynamic musical arrangements, making it an essential tool for modern musicians. Whether you're looking to add depth to your solos or enrich your rhythm sections, this pedal offers the versatility and power to elevate your performance.

Key Features:

Polyphonic harmony generator for complex harmonic textures
Integrated reverb, delay, and chorus effects
Adjustable parameters for sound customization
MIDI compatibility for seamless integration
Intuitive user interface for easy operation
Suitable for both live and studio use

Product specs

Effects	delay, octave
Analog/Digital	analog

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Darren Shroeger

A/DA Harmony Synthesizer Demo

Darren Shroeger

A/DA Harmony Synthesizer w/ Expression Pedal

Darren Shroeger

A/DA Harmony Synthesizer EBAY 362173902108

xLexC7x

A/DA Harmony Synthesizer demo

Rafmax Fx

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Critic Reviews

Inside the A/DA Harmony Synthesizer - Premier Guitar

premierguitar.com

The A/DA Harmony Synthesizer showcases a fascinatingly complex analog design but falls short in sound quality compared to modern digital pitch-shifters. Its analog circuitry is impressive, offering unique polyphonic octave effects, yet users must tune by ear and contend with pitch drift, which can frustrate those expecting precision. While it stands as a vintage relic with a certain charm, it’s not for everyone, especially those seeking digital perfection. If you appreciate quirky, lo-fi sounds and are willing to embrace its limitations, it may still have a place in your rig. However, be prepared for potential repair challenges due to its intricate design.

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Robert Fripp

Guitarist, Keyboardist

King Crimson

Verified via Photo

Used live with King Crimson, as can be seen on page 16 of the March 1982 issue of Guitar World and as specified on page 17.

ROBERT FRIPP—

Clockwise from left

a—Roland GR-300 control panel

b—Foxx Tone Machine

c—Pete Cornish pedalboard with vintage Electro-Harmonix Big Muff, volume, and Cry Baby Wah

d—A/DA Harmony Synthesizer

e—Proprietary pedalboard with Roland FX (SP-1, DS-1, CE-1)