What Electro-Harmonix says:
A truly super tremolo with powerful controls and signal routing.
Sculpt the tremolo’s shape with adjustable sine, triangle and pulse waveforms while tap tempo and tap divide ensure synchronicity. Create your own rhythmic patterns and store them. Save and recall up to eight customized preset programs. Conjure moving tremolos on-the-fly with EXP control over Rate, Depth, Shape, Phase or Volume. Deluxe I/O lets you choose stereo in/out, mono in/stereo out, stereo in/mono out or mono in/mono out the operation. Analog circuitry yields a warm, lush tone that will envelop you in shapeshifting waves.