Electro Harmonix SuperEgo Plus Synth Engine Pedal

This second hand gutiar effects pedal is in great condition.

The Superego Plus is a highly-capable effects / sustain / synth-engine pedal, building on EHX’s earlier “Superego” model. According to reviews, major enhancements include polyphonic tracking, onboard multi-effects, expression pedal support, and send/return loop capabilities. 

Key features:

• Polyphonic “freeze / sustain / layering” engine: allows you to capture notes or chords, hold them, layer them, glissando (slide) between them, and treat them like a pad or synth texture. 

• Effects section in addition to the sustain engine: delays, modulation (chorus/phase/tremolo), filter, pitch shifting, etc. 

• Expression pedal and external control inputs, plus a send/return loop so you can route external pedals/effects into the Superego’s loop for further sound design. 

• Multiple modes (Latch / Auto / Momentary) for triggering the freeze/engine behaviour differently.

• Dry / Effect Mix controls, Layer, Gliss, Attack/Decay controls for shaping the synthetic sustains. 

In essence, the Superego Plus is less a “traditional guitar effect” and more a creative sound-design tool for guitarists (or bassists, synth players) who are exploring ambient textures, sustained drones, or synth-pad type sounds.

What It Does  Well

• Ambient / Textural Capabilities: Many reviewers highlight that the Superego Plus excels for creating ambient pads, sustained background textures, “soundscapes” and unusual layered effects.

• Layering & Sustain Flexibility: The ability to freeze a chord, then play over it, tweak gliss (portamento), adjust attack/decay, and layer multiple frozen elements is praised as very creative and unique.

• Effects Integration & Routing: The built-in effects section, plus send/return loop, means you can route other pedals inside its loop and shape the frozen sound with modulation or delay. This makes it more than just a freeze pedal.

• Polyphonic and Responsive Tracking: Many users say it handles chords well, avoids excessive tracking artifacts or latency that older or simpler pedals have.

• Good Value for What It Offers: For a pedal that offers sustain engine + multi-effects + expression routing, several users feel it offers strong creative value.