Today I had a few minutes to check out some videos, and I came across an interesting one by PigTronix. This particular video is old (NAMM 2008) where Phil Lesh of the Grateful Dead checks out the Pigtronix Echolution Delay. This video mentioned the ‘Golden Ratio’ effect which I thought was pretty cool.
Here is the official information about the PHI switch:
Engaging the (PHI) switch realigns all of these fractions to values based on the Golden Ratio. The Golden Ratio creates a spiral rhythm that is found throughout the universe. It is observed in the shapes of galaxies, sea shells, DNA, the Egyptian Pyramids as well as in the work of many great visual artists and musicians.