Electro-Harmonix Holy Grail Instruction Manual

HOLY GRAIL

Reverb

Congratulations on your purchase of the Holy Grail. The small enclosure insures a pedal board friendly fit
while delivering a superb reverb prized by musicians around the world.

-DESCRIPTION-

The Holy Grail is Digital Reverb in a compact guitar pedal. It contains three different reverb algorithms:
SPRING, HALL, and FLERB. All three algorithms were designed and tailored for the electric guitar but
they will work equally as well on most instruments and voices. The SPRING algorithm is a recreation of
the classic spring reverbs that are found in many guitar amplifiers. The HALL algorithm is a new, lush
reverb. Finally FLERB is a beautiful reverb like nothing you have heard before and may help you play your
instruments in new ways.

- THEORY OF OPERATION -

CONTROLS

Connect your instrument into the INPUT jack and your amp into the OUTPUT jack. Plug the DC adaptor
into the US96DC-200BI jack and then plug the DC adaptor into a wall outlet.

The STATUS LED indicates when the effect is switched on. The footswitch engages and disengages the
Reverb effect.

The REVERB knob acts like a Wet/Dry control. As you turn the REVERB knob clockwise you will hear
more reverb and less of your dry instrument. The Holy Grail is designed so that as you turn the REVERB
knob from its minimum position to the 12 o’clock position you will hear a subtle amount of reverb added to
the output. As you turn the REVERB knob from 12 o’clock to its maximum position the amount of reverb
you hear will increase dramatically. It is designed this way so musicians can hone in on just the right
amount of subtle reverb added to their instrument’s signal. The Slide Switch chooses between the three
different reverb algorithms. The Slide Switch chooses between the three different reverb algorithms.