The Empress Tremolo2 is an original design built from the ground up to include innovative features without sacrificing tone. The audio signal path is analog, but the tremolo effect is controlled digitally via opto technology. Tap tempo, selectable waveforms, a choice of 8 rhythms and a full preset system capable of storing up to 8 presets are all at your fingertips. The control port allows control over the Tremolo2 via external tap tempo, expression pedal, contro l voltage and MIDI, making the tremolo2 more powerful than ever! Video Features Pristine Sound - The Empress Tap Tremolo2 Pedal has to be heard to be believed. It's whisper quiet and free from the "LFO throb" usually associated with tremolos. We dare anyone to find a better sounding tremolo. Waveform Selection - You can modulate your sound with three different waveforms. An asymmetrical tremolo was modeled after a '65 Fender Vibrolux (brown face) to give you the fullest tremolo sound possible. A square wave can be utilized if you're after a harder sound. And if you're looking for a more normal tremolo, you can use the triangle wave setting.