The Electro-Harmonix Holy Grail Plus is a variable reverb pedal that is one of the most widely-used pedals in the industry. It allows users to impart one of three distinct reverbs: hall, room, and spring. Additionally, it features a multifunctional decay, damping, and modulation speed control.
Holy Grail Plus Features
Controls: Blend, Amount, and Reverb Type (Hall, Room, Spring)
1/4" input and output
LED indicates whether effect is engaged or bypassed.