The Rainbow Reverb is the ultimate digital reverb effect. The Rainbow is based on the well known and reliable DSP FV-1 used in most of the boutique pedals in the market, and offers 5 reverb presets that include 2 mind-blowing shimmering algorithms in addition to the other 2 classic reverb effects and an innovative and inspiring RotaryVerb (imagine to putting an old rotary speaker right in the middle of the Pantheon temple in Rome?) These features are all at a fraction of what other boutique pedals cost.