The SolidGoldFX AURRAS Optical Vibraphase is a 2-stage asymmetric phase shifter built around a pair of selected and individually controlled opto-isolators offering a clearer signal with minimal distortion while simultaneously isolating the audio path from any possible LFO interference. Its dual LFO setup is powered by a microprocessor that provides precise control and limitless sonic flexibility. Drawing inspiration from albums such as Band of Gypsys or the Dark Side of the Moon, the AURRAS delivers the lush modulation and heavy pulse that have shaped Rock & Roll history.