The original Electro Harmonix Attack Decay is a hard-to-find gem among legendary guitar pedals. Originally called a Tape Reverse Simulator, it is known for producing volume and reverse swells, backward tape sounds, artificially short staccato notes and bowed instrument effects.

The new Electro Harmonix Attack Decay reinterprets the vintage unit by keeping the basic functionality but adding more modern features such as Poly mode and presets. It can produce a single volume envelope like the original, or with Poly engaged, put each note you play through separate volume envelopes. The built-in Harmonix fuzz is now a fully controllable distortion with gain, tone and volume controls. The effects loop allows the musician or sound designer to place the volume envelope onto whatever signal is present at the Return jack. An Expression/CV/Clock input and three user presets give the user total control over their Attack Decay.