
Anthony Easton
The Electro-Harmonix Holy Grail Max is a reverb pedal that delivers four types of studio-quality reverb: SPRING, HALL, PLATE, and REVERSE. It is designed for discerning guitarists but is also suitable for other instruments on stage or in the studio. The pedal features an analog wet/dry control that provides a constant volume curve as the BLEND knob is turned from fully dry to fully wet while keeping the dry signal analog through the pedal.
Specifications:
- Circuit: Digital
- Bypass: True Bypass
- Audio: Mono
- Power Supply: 9.6VDC-200mA power adapter included
- Dimensions (in): 4.75 x 4 x 2.25
- Current Draw: 80mA
- Year Released: 2014
- UPC: 683274011431
Controls:
- BLEND KNOB: Controls the wet/dry mix from 100% Dry to 100% Wet
- TIME KNOB: Adjusts the decay time or reverb length/size
- REVERB SWITCH KNOB: Chooses the reverb mode: SPRING, HALL, PLATE, or
REVERSE
- FOOTSWITCH AND LED: Selects effect mode or bypass. When the effect is
engaged, the LED is lit
- INPUT JACK: 1/4” audio input
- AMP JACK: 1/4” audio output
Additional features:
- True bypass for maximum signal path integrity
- Compact, rugged die-cast chassis
- Power adapter included
The Holy Grail Max is praised for its features and sound quality, making it worth the price tag according to MusicCritic.com.
Watch the latest video demos and reviews for the Holy Grail Max from YouTube. Stompbx updates this every six months to reflect the most popular reviewers and guitar pedal demos for each pedal.

Below are live Reverb listings for the Electro-Harmonix Holy Grail Max from Reverb. Stompbx automatically aggregates current offers to give you a quick look at available models, conditions, and prices. Perfect for comparing options and making an informed purchase.

Brand New
$188.64

Brand New
$188.42

Mint
$144.87

Brand New
$225.03

Brand New
$185.10

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Check out the latest news and articles from around the pedal world.

Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton