Electro-Harmonix Superego Synth Engine (2012–2025)
A discontinued analog synth effects pedal for guitar that generates synthesizer-like tones using polyphonic sample and hold and glissando effects.
Overview
The Electro-Harmonix Superego Synth Engine is a guitar effects pedal released in 2012 and discontinued in 2025. It uses all-analog circuitry to create synthesizer-style effects such as polyphonic sample and hold, fluid glissandos, and pad-like textures. Designed to transform guitar signals into oscillator-like outputs, it offers three distinct operation modes and includes a built-in effects loop that processes only the wet signal. Marketed as a fully-featured "freeze" pedal, it was positioned as a more advanced alternative to EHX’s Freeze pedal, with broader sonic capabilities.
Specifications
| Product type | Synth Engine pedal / guitar effects pedal |
| Year Released | 2012 |
| Status | DISCONTINUED 2025 |
| Circuitry | all-analog circuitry |
| Effects loop | built-in effects loop (processes wet signal only) |
| Modes | 3 Operation Modes |
| UPC | 683274011271 |
Design
The Superego features all-analog circuitry and integrates a built-in effects loop that allows external effects to process only the wet, synthesized signal, preserving the integrity of the dry guitar tone.
Context
The Superego was compared directly to EHX’s Freeze pedal, with users noting its expanded capabilities beyond simple sustain. It was described as "a truly original pedal" offering a wider range of synthesizer-esque effects, from ethereal pads to dynamic pitch shifts. A later variant, the Superego Plus, added additional features and effects.
Market
Originally priced at $323.10, the Superego has sold for as low as $242.90 in recent retail listings. It was marketed as a premium, specialized effects unit, though one user noted it may not be a "desert island" pedal, suggesting niche rather than universal appeal.
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