Electro-Harmonix Holier Grail Description: Reverb + Golden Gate = Let the Golden Gates of heaven open up for you! Holier Grail REVERB + GOLDEN GATE- Let the Golden Gates of heaven open up for you! Expanding on the reverb sounds found in the Holy Grail comes the Holier Grail: 8 high-quality reverbs that will drive guitarists and experimentalists to part seas just to unearth it. Two of each reverb: Spring, Hall, Room, Flerb, post-reverb Gate, and Reverse Gate will open new doors to other worlds of reverb and help you get your wings.