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Sunsine Audio
Sunsine Audio Harmonic Decoder Limited Gold Edition

Sunsine Audio Harmonic Decoder Limited Gold Edition main image

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Sunsine Audio Harmonic Decoder Limited Gold Edition

Sunsine Audio Harmonic Decoder Limited Gold Edition

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Page last updated Aug 11, 2025

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Limited to 50 units

The Harmonic Decoder can sound like a fuzz, an octave/harmony pedal, a filter/wah, a complex waveshaper or some crazy bent 8 bit glitch box but all of it’s effects are derived from an analog VCO, a phase detector, and a simple filter in an arrangement known as a Phase Lock Loop. At the heart of the Harmonic Decoder is a true single oscillator analog synthesizer. It effectively resynthesizes any signal delivered at the input, providing extreme waveshaping and harmonic effects in the analog domain.

The frequency of the VCO can be modulated either by the internal envelope follower or via the external control voltage input.

Phase Lock Loop (PLL) Device
Analog VCO
Envelope Follower
External Control Voltage Input (1/8 inch)
Accepts any 2.1mm 9 Volt Negative Pin DC Adapter (not included)
High Quality Components
Rugged Aluminium Knobs and Enclosure
All Analog Signal Path
True Bypass
Numbered, Signed, Dated
One Year Electronics Warranty
Hand made in the USA

Product specs

Power	9V
Bypass	true bypass

Videos

Perfect Circuit

Perfect Circuit

Sunsine Audio Harmonic Decoder

Video thumbnail for Sunsine Audio Harmonic Decoder by Perfect Circuit

Sunsine Audio Harmonic Decoder

Perfect Circuit

Perfect Circuit

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See also: Guitar Synth Pedals, Sunsine Audio, Sunsine Audio Guitar Synth Pedals

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