Electro Harmonix HOLYGRAIL-U Holy Grail Reverb Pedal
Electro Harmonix HOLYGRAIL-U Holy Grail Reverb Pedal
Product images are provided for reference and may not represent the exact model, configuration, or included components.

At A Glance

Input Impedance
270 kΩ
Current Draw
103mA @ 9VDC
Power Supply
9.6 VDC, 200 mA
Dimensions
7.8" (w) x 4.3" (I) x 4.3" (h)
Bypass
True bypass
Included Power Supply
96DC-200BI
Description

Electro Harmonix produced the Holy Grail as a compact digital reverb pedal positioned as an accessible entry point into studio-quality reverb for guitar players. It sat in the Electro Harmonix effects line as a straightforward, single-purpose unit built around three distinct reverb modes selectable via a rotary control.

The pedal offered three reverb types: a Spring emulation, a Hall reverb voiced specifically for guitar, and Flerb — a mode combining flanging with spatial reverb. The unit featured true bypass switching. Power was supplied by an included 96DC-200BI supply at 9.6 VDC, 200 mA, with the pedal drawing 103 mA at 9 VDC. Input impedance is rated at 270 kΩ. The enclosure measures 7.8" wide by 4.3" long by 4.3" tall.

Owners sourcing replacement footswitches, knobs, or power supplies should confirm the 9.6 VDC centre-negative specification before substituting any supply, and consult a qualified guitar technician for internal service or bypass wiring repairs.

Expert Analysis
Specifications
Input Impedance: 270 kΩ
Current Draw: 103mA @ 9VDC
Power Supply: 9.6 VDC, 200 mA
Dimensions: 7.8" (w) x 4.3" (I) x 4.3" (h)
Bypass: True bypass
Included Power Supply: 96DC-200BI
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Electro Harmonix HOLYGRAIL-U Holy Grail Reverb Pedal

$209.99
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