Electro-Harmonix Holy Grail Nano
Electro-Harmonix Holy Grail Nano

Holy Grail Nano, Reverb for Guitar from Electro-Harmonix in the Holy Grail series.

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All user reviews for the Electro-Harmonix Holy Grail Nano

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Average Score:4.2( 4.2/5 based on 6 reviews )
 4 reviews67 %
 1 user review17 %
Value For Money : Excellent
Not satisfied with those reviews?

moosers's review

Electro-Harmonix Holy Grail Nano
The Electro-Harmonix Nano Holy Grail is a very simple and small reverb pedal - an offshoot from the regular EH Holy Grail pedal and also the Holy Grail Plus. It's the same great sound minus the control and versatility, but also loses the size. The pedal is an analog one and isn't rack mountable as it's a foot pedal.


The make up of the Electro-Harmonix Nano Holy Grail couldn't be simpler. It's got three modes to choose from - spring, hall, and flerb, the latter of which is a spacey flanger-reverb combo, also found on the other Holy Grail pedals and also on the EH Cathedral Reverb, which is my personal favorite. The only other parameter in addition to the mode switch is a large reverb knob to set the amount of the effect that you'd like. No manual is needed here of course.


Despite it's limitations when compared to it's more complete predecessors, the Electro-Harmonix Nano Holy Grail still has the same great sound. Between the three modes it's still possible to get a nice collection of tones with this, and it's definitely all at a very high quality - smooth and silky. I do prefer having the Cathedral reverb since I use it a lot and it has a lot of control, but this is a great alternative if you're looking for basic sounds only.


The Electro-Harmonix Nano Holy Grail is a great overall reverb pedal, even though it doesn't have all the bells and whistles that you'll get with the regular Holy Grail. It's of course cheaper in price which makes it appealing for users on all budgets. If you're looking for a cheaper reverb pedal without sacrificing quality, the Nano Holy Grail is a great way to go. Check out the other pedals I've mentioned here if you're looking for some more control...

ludovicloco's review (This content has been automatically translated from French)

Electro-Harmonix Holy Grail Nano
reverb with 3 positions: spring / hall and flerb
I think digital technology
a knob to adjust the length and density
switch, jack in, jack out, incl ditto boss.


easier you die


nickel to simulate an amp reverb (spring), it's just what I was looking to add a reverb on my amp that does not, and having a second length adjustment effect on my foot Laney VC30. I hardly use the hall position, but it sounds very correctly.
As for flerb is a kind of flanger but applied only to the reverb, not the original sound of the guitar or bass or bagpipes .... I used pieces air, almost experimental, and here was the case. To use it too, here could be heavy or vulgar ...


excellent value for money (especially OCCAZ 50 euros).
Strengths: small size, great to add to a pedal board already crowded, and the power supply standard

nakadai's review (This content has been automatically translated from French)

Electro-Harmonix Holy Grail Nano
Analog reverb pedal
Mains or battery 9Volt


Simple to use
Three types of reverb: spring, hall and flerb


At the risk of sounding like the ugly duckling, I find this very reverb below its notoriety.

Mode spring, compress your guitar sound and style in this, others do it better (eg 'Wet reverb')

Flerb mode is a useless gadget (unidentified reverb with a sort of light behind flanger)

This is what I call the EHX syndrome, rather than make one good effect in a pedal, he prefers (in 80% of cases) to at least two effects in one pedal, the second is more or less can .

Anyway ...


There is the way that Hall is doing ...

In summary you will spend between 90 and 100 euros for a single reverb.

Let me tell you a pedal as a "hall of fame" TC electronic, passed it to a gadget.

The moral: Save your money :)

cachalotblanc's review (This content has been automatically translated from French)" Excellent!"

Electro-Harmonix Holy Grail Nano
reverb pedal effect size


very simple config. The concentrate of "what to and not need more"


Placed in the effects loop of my head IBANEZ TSA15H (no reverb) is a killer!

The three settings "spring", "lobby" and "flerb" (mixture of reverb and flanger) are EXCELLENT! No noise, no breath. The effect is there, and it is very beautiful.

The quality of the reverb produced is extraordinary.


Aquise récemmment, trendy ... sublime!

The +: quality / price UNBEATABLE!

The -: use only provided with the supplied adapter (not used with 9V battery) ... Therefore: do not lose or forget the power supply. Which may (?) In turn be subject to failure.

Yes I would do that choice without hesitation.

MacB's review (This content has been automatically translated from French)" Your home becomes a boathouse!"

Electro-Harmonix Holy Grail Nano
Effects: reverb amplified three modes: Spring, Hall, Flerb.
Technology: stereo / analog elements of the pedal.
Connections: Power or 9V battery manufacturer.


Configuration: Ultra-simple one button to turn and a 3 position switch, (Spring, Hall, Flerb) alumage true bypass on / off.
Manual: existing but unnecessary
Editing the sounds:
- Simple
- 3 modes activated by a switch 3 positions:
- Spring: sound mix between a high reverb / chorus and a slightly amplified
- Hall reverb amplified: gave up the sound effect of a sound "of a boathouse" or a very large concert hall.
- Flerb chorus, the effect spills over a small flange, in the minds of other model from EHX, as Polychorus, or the simple chorus (NIRVANA).


The effective sound effects, the point we seek an amplified reverb effect, the most natural, realistic hope, while giving power to its sound.



- Here is the configuration of my pedal: T REX MOLLER (Overdrive / boost) + EHX Holy Grail EHX Memory Man + 2 (analog delay) or tape echoplex = sound in RADIOHEAD OK COMPUTER period, or 80-90 or even early U2 CRANBERRIES early for fans of pop rock. NIRVANA sound to the level of rock ballads, if you use the flerb. If you own a Gretsch guitar brand, and you only use the EHX Holy Grail, equipped with an overdrive, your configuration took his time about NEIL YOUNG 90, WELD album. You can do it all anyway, even blues, solos by penta, provided you have the proper amp.

- I like the three configurations, but I use a single configuration HALL with a knob for adjusting the pedal to 1:00 p.m.: sound effect "boathouse".


I use it for one month, I tried a BOSS SPACE ECHO, a clone of legendary pedal at ROLLAND (why not!) But good too digital, too cold, it is the same for EHX CATHEDRAL, GP gave amplified reverb with several sub modes, too cold, too analog for my taste, or the T-REX Tonebug Reverb, Analog, but not giving enough power to sound so there was only one alternative, the EHX Holy Grail nano. The Holy Grail EHX Holy Stain + or nothing to any one who wants to remain a powerful and natural. Also not to use certain functions, see 90% of the pedal is a risk to take, only the HOLY GRAIL NANO gave me real satisfaction. Knowing that I did not want anything complex one in terms of settings, while concervant natural sound and powerful, this pedal is needed. A good quality / price ratio in my opinion and obviously I do it again this choice in a heartbeat.

oasis745's review (This content has been automatically translated from French)

Electro-Harmonix Holy Grail Nano
It is a digital reverb. It has a single setting intesité of reverb, NQIA that a switch to select the mode of reverb: spring, hall or flerb (mixture of flanger and reverb).
The configuration could not be simpler.
The rule knob reverb in the mix the dry sound (direct sound without reverb) and the reverb itself ... In other words, if the drives have knob thoroughly, we get only the reverb, but for his "dry".


This could not be simpler to use. The manual is useless so use of the pedal is intuitive ... And even if it does nothing to register on the pedal, trust your ears and it'll be all alone ... <img class="smiley" src="https://fr.audiofanzine.com/images/audiofanzine/interface/smileys/icon_mrgreen.gif" alt="mrgreen" />


This is a digital reverb, but that sounds very ... "Analog". Obviously, we're not in the presence of a Lexicon studio, but the qualities of this pedal is undeniable ...
The effect can be very subtle, or conversely, very violent ...

Spring offers the user a very clear and bright reverb. We keep a good definition in the sound.
Hall is the mode when his much deeper. Maybe a little darker. The sound is a little less defined.
Mode Flerb notes in my opinion more of the story, although some adjustment is to have fun, kind atmosphere "The Cure", but in this case as to afford a Stereo Electric Mistress that will make the job much better. ..

Like all EHX pedals, spend a certain amount of effect, were obtained sounds completely barges but it is also what makes the charm of EHX effects ... <img class="smiley" src="https://fr.audiofanzine.com/images/audiofanzine/interface/smileys/icon_biggrin.gif" alt="biggrin" />

In any case, the resulting sounds are very rich ... This pedal is not a bestseller by accident, and it takes no more than 5 minutes to realize it ... I use the effects loop in my head RAT Electronics Handsome Devil: it beautifully embellishes the already very good to his head.

I am not 10, perfection is not of this world, but still, it sounds this pedal !!!!!


I use it for some months and I will ever buy this without hesitation ... I urge all those who want a reverb that is not like a gas plant, and that also sounds great!! Compete buy eyes closed ...