Electro Harmonix Super Ego Synth Engine.
The polyphonic EHX Superego Synth Engine reinvents sample and hold, performs fluid glissandos and creates oscillator like, synthesizer effects. It can stack sounds or create infinite sustain, it even lets you tweak attack and decay, or use its effects loop to invent novel synth patches. Indulge your guilty pleasures!
Auto mode captures and freezes notes and chords as you play
Sustain notes and chords as long as wanted
Insert effects into the wet signal with the effects loop
Latch mode with a layer feature to stacksounds
Power adapter included