The MXR Tremolo’s six tremolo waveforms represent classic and iconic sources of the effect, as well as new sounds concocted by the MXR design team. First, the MXR style recreates the sound of the much-beloved M159 MXR Stereo Tremolo. Next, the Bias style takes after the compression of tremolo effects that came equipped on the early tube amplifiers. The Revo style turns the optical tremolo waveform backward for more exaggerated peaks and valleys. The Opto style emulates the tremolo generated by photocells in many amplifiers. Inspired by an iconic outboard effect, the SQR setting produces choppy, super pronounced tremolo. Finally, the Harm style recreates the trippy, phase-like tremolo produced by vintage amplifiers.
