This upgrade of the Holy Grail adds graceful Room Reverb and a multi-function control for reverb time, damping, and modulation speed. The Grail just got a little more divine!

Main Features:

• Controls: Blend, Amount, and Reverb Type (Hall, Room, Spring)


• 1/4" input and output


• DC power input for battery replacement.


• LED indicates whether effect is engaged or bypassed.