Pedals that stack with the Electro-Harmonix Holy Grail Max

Ibanez Tube Screamer

The Screamer's mid-forward boost feeds the Holy Grail Max's simple spring reverb a driven signal instead of a clean one, not really stacking gain with it.

Klon Centaur

Push the Holy Grail Max's simple, natural spring reverb with the Klon's clear midrange boost and the wash gets a brighter signal to swell into.

Electro-Harmonix Bad

Run the Bad's woolly, resonant phase sweep after the Holy Grail Max's natural spring reverb so the modulation colors the wash instead of the dry signal.

MXR M117R Flanger

Run the MXR Flanger's warm, spacious sweep after the Holy Grail Max's natural spring reverb so the modulation colors the wash instead of the dry signal.

Old Blood Noise Endeavors Flat Flange Shifter Device

Keep Electro-Harmonix Holy Grail Max after Old Blood Noise Endeavors Flat Flange Shifter Device in the signal chain, clear of Old Blood Noise Endeavors Flat Flange Shifter Device's own gain stage

EarthQuaker Devices Spatial Delivery V3

Keep the Holy Grail Max after the Spatial Delivery — the funky envelope-filter sweep stays intact and the reverb adds natural spring decay behind it.

EarthQuaker Devices Pyramids V1 Stereo Flanging Device

Keep EarthQuaker Devices Pyramids V1 Stereo Flanging Device's shimmer voice out front: Electro-Harmonix Holy Grail Max goes after EarthQuaker Devices Pyramids V1 Stereo Flanging Device in the signal chain so its spring voice doesn't muddy it

Mr. Black Downward Spiral

Keep Electro-Harmonix Holy Grail Max after Mr. Black Downward Spiral in the signal chain, clear of Mr. Black Downward Spiral's own gain stage

IdiotBox Effects WhataPhaser

Keep Electro-Harmonix Holy Grail Max after IdiotBox Effects WhataPhaser in the signal chain, clear of IdiotBox Effects WhataPhaser's own gain stage

Subdecay Quasar Phaser v4

Keep Subdecay Quasar Phaser v4's ambient voice out front: Electro-Harmonix Holy Grail Max goes after Subdecay Quasar Phaser v4 in the signal chain so its spring voice doesn't muddy it

FTelettronica Naked Lunch

Put Electro-Harmonix Holy Grail Max after FTelettronica Naked Lunch in the signal chain, clear of FTelettronica Naked Lunch's own gain stage

Source Audio Vertigo

Put Electro-Harmonix Holy Grail Max after Source Audio Vertigo in the signal chain, clear of Source Audio Vertigo's own gain stage

Ernie Ball PO6188 Expression Tremolo

Keep Ernie Ball PO6188 Expression Tremolo's modulated voice out front: Electro-Harmonix Holy Grail Max goes after Ernie Ball PO6188 Expression Tremolo in the signal chain so its spring voice doesn't muddy it

Beetronics Seabee Lite Harmochorus

Keep Beetronics Seabee Lite Harmochorus's analog warmth voice out front: Electro-Harmonix Holy Grail Max goes after Beetronics Seabee Lite Harmochorus in the signal chain so its spring voice doesn't muddy it

Electro-Harmonix Pulsar Variable Speed Tremolo

Electro-Harmonix Holy Grail Max's spring voice goes after Electro-Harmonix Pulsar Variable Speed Tremolo in the signal chain — it's not there to compete with Electro-Harmonix Pulsar Variable Speed Tremolo's own modulated character

Universal Audio Galaxy '74

Keep Universal Audio Galaxy '74's modulated voice out front: Electro-Harmonix Holy Grail Max goes after Universal Audio Galaxy '74 in the signal chain so its spring voice doesn't muddy it

Subdecay TremCoder 2

Put Electro-Harmonix Holy Grail Max after Subdecay TremCoder 2 in the signal chain, clear of Subdecay TremCoder 2's own gain stage

ThorpyFX The Camoflange Flanger MKII

Run Electro-Harmonix Holy Grail Max after ThorpyFX The Camoflange Flanger MKII in the signal chain, clear of ThorpyFX The Camoflange Flanger MKII's own gain stage

Moen AM-TR Tremolo

Keep Electro-Harmonix Holy Grail Max after Moen AM-TR Tremolo in the signal chain, clear of Moen AM-TR Tremolo's own gain stage

3d Printed Slider Caps

Run Electro-Harmonix Holy Grail Max after 3d Printed Slider Caps in the signal chain, clear of 3d Printed Slider Caps's own gain stage

Mooer Rage Machine

Keep Electro-Harmonix Holy Grail Max after Mooer Rage Machine in the signal chain, clear of Mooer Rage Machine's own gain stage

Tone City Rock Magma Distortion Super Sustain

Put Electro-Harmonix Holy Grail Max after Tone City Rock Magma Distortion Super Sustain in the signal chain, clear of Tone City Rock Magma Distortion Super Sustain's own gain stage

Moen AM-CP Compressor

Electro-Harmonix Holy Grail Max's spring voice goes after Moen AM-CP Compressor in the signal chain — it's not there to compete with Moen AM-CP Compressor's own compressed character

Zvex Razzle Dazzle Lo-Fi Junky

Put Electro-Harmonix Holy Grail Max after Zvex Razzle Dazzle Lo-Fi Junky in the signal chain, clear of Zvex Razzle Dazzle Lo-Fi Junky's own gain stage