The Electro-Harmonix Attack Decay is a "Tape Reverse Simulator" that gives you synthesizer-style control over the volume envelope of your guitar. Originally a rare 1980s cult classic, the modern reissue expands on the original’s "auto-swell" capabilities with digital power and polyphonic tracking.
It is essentially a sophisticated noise gate in reverse, allowing you to sculpt how a note starts (Attack) and how it ends (Decay).


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