Electro-Harmonix Holy Grail Plus

Electro-Harmonix Holy Grail Plus

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

10 user reviews

Electro-Harmonix Holy Grail Plus tech. sheet

  • Manufacturer: Electro-Harmonix
  • Model: Holy Grail Plus
  • Series: Holy Grail
  • Category: Reverbs for Guitar
  • Added in our database on: 09/07/2007

We have no technical specifications for this product
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Electro-Harmonix Holy Grail Plus user reviews

Average Score:4.7( 4.7/5 based on 10 reviews )
 8 reviews80 %
 1 user review10 %
 1 user review10 %

iamqman's review"Holy Grail"

Electro-Harmonix Holy Grail Plus
Electra harmonics is really known for their great sounding effects pedals and especially the Big Muff fuzz distortion pedal. They really use a large box to put their effects pedals inside which to some people uses a lot of room on the pedal board. This is one of those padels that uses quite a bit of space for only with a single effect. This padel does sound quite fantastic if you can get past the large and bulky size of the unit. It is a cool sounding pedal and it has the features laid within it to get anyone to write for you for the tone that they are looking for.


Electro-Harmonix Holy Grail Plus Reverb Pedal Features:

Realistic spring, hall, and room reverbs
Control over damping, reverb time, and modulation speed
Blend, Amount, and Reverb type knobs
Compact, rugged metal housing


This pedal has three control knobs cooperation. First you have a blend knob which mixes the effect signal with the drive signal then you have an amount control which gives you to overall exact sound in volume. Then you have any reverb switch that gives you three modes of operation including spring, hall, and room reverb tones. These paddles do you sound fantastic and at the price point they are a must-have in my opinion. There is really so many tones available for this pedal even though it is a simple reverb pedal. It is a classic sound that has a load of tones and features that make it a go to pedal for the gigging guitarist.


At new you can find these pedals for right around $145. That's a pretty good price for a great sounding pedal I will last you a lifetime of great tone and effect. Electro harmonics is one of those companies that continues to build sounding units right here in the United States and has a reputation for quality and sound. This is one of those petals that sounds great and at the price point it is a must-have.

moosers's review

Electro-Harmonix Holy Grail Plus
The Electro Harmonix Holy Grail Plus is an analog reverb pedal that is similar to the original Holy Grail reverb pedal.  This pedal has 1/4 inch connections and I powered it with the specific Electro Harmonix power supply and I don't know if it can be powered with another 9 volt power supply as I have no tried.  This isn't a rack mountable piece of gear as it is a stomp box.


The configuration of the Electro Harmonix Holy Grail Plus is pretty easy to follow overall as it simply has three parameters.  It has knobs for blend, amount, and mode, which you can choose from spring, hall, and room type reverbs.  This is slightly different from the original Holy Grail pedal and allows you to get some slightly different sounding reverbs, although I believe that only one of the modes is different.  As you can see, with only three knobs this pedal is very easy to use and for this reason a manual isn't a necessity.


The sounds that are possible with the Electro Harmonix Holy Grail Plus are pretty great overall.  I like all three of the modes as it allows me to get some contrasting reverb sounds within one place.  While I do wish that there were more modes as I am always a fan of versatility, you can still get a good amount of different sounds.  I usually use the pedal with a '76 Fender Twin Reverb and a Fender Strat, so I'm getting a pretty good idea of what this pedal actually sounds like.  While the spring reverb on the pedal is probably the best of the three modes, it still doesn't compare to the spring reverb I have on my Twin Reverb, but is still realistic and very useful for live shows or recording./


I've been using the Electro Harmonix Holy Grail Plus for about six months and it is definitely a nice sounding reverb pedal.  While this wouldn't be my first choice for a reverb pedal, when I have access to it at the studio I work at I will definitely dabble with it as you can get some cool and interesting tones.  It is pretty similar to the original Holy Grail, and its hard for me to say if one is better or worse, they are just slightly different in make up and the tones that you can get.  The price is definitely reasonable and you know you're getting top quality from Electro Harmonix.  If you are looking for a nice reverb pedal, definitely check out the Electro Harmonix Holy Grail Plus.

hen's review (This content has been automatically translated from French)" Effective"

Electro-Harmonix Holy Grail Plus
4 modes:
- Spring
- Hall
- Room
- Flerb



Made by EH so simple and often effective.

Manuel???'s For EH???

Just to clarify for those who love :-) Pedalboards adapter is provided, but it's 9.6! So if you plug a 9V AC power supply in general will blow (logic) with a very sharp unpleasant noise (even with a noise gate). So we are left with one more charger to plug and carry around.
Not too practical when you think a config with several general alim (9V, 12V, 18V) to just not have a single charger.


If you want a reverb amp is kind to you. I plug in the ORANGE, and I use a strat-type guitar DUPONT.
I use all modes. The flerb I found gadget at the beginning eventually serve me and not make trouble in the end.

Last 12H knobs on it starts blowing. If you are fans of this invasive reverb pedal is not for you.

The sound is warm. Does not distort the sound.
I often had problems in EH breath. Here it is correct, with a Noise Gate is perfect.


I use it for about 1 year. I have always used reverb amps above (Marshmal, fender) and as there was none on the ORANGE ...

I find it a bit expensive anyway, but I use it a lot, so we can say that the cushioning.

I would do this choice because it is what I need: reverb amp discrette and effective.

Q.Allcool's review (This content has been automatically translated from French)" Excellent reverb!"

Electro-Harmonix Holy Grail Plus
This is a reverb pedal well known, and it deserves its fame! Four types of effects on the Holy Grail +:

-Spring (classic reverb, which is found on most tube amps)
Hall (imitation of the reverberation of a large room, like a church)
Room-(imitation of the reverberation of a small room)
-Flerb (accumulation of flanger and reverb, effect psyche well!)

Presence of true bypass of course, and comes with a 9V supply. In addition to the on / off switch pedal has a button amount (effect size), a blend knob (reverb time), and a button to select the effect you choose among the four.


Using fairly simple, but it will take some time to find a good setup that works for both the lead channel and clean channel. The manual could not be more basic in English, he explains briefly the role of different knobs.


I use this pedal with an Epiphone Les Paul Std + on a Peavey ValveKing 212, mainly for the large rock and progressive rock.

The effects are very good, very good quality especially the reverb effect "hall" which gives a huge scope to the sound. Indeed essential, among others, to play solos planing to Pink Floyd for example. The effect is very interesting and flerb to explore sounds rather strange.


I use it for a few weeks only for solo play, this pedal is really an excellent reverb. The price / quality ratio is normal, for € 130 you have a standard of what kind of effect.

Electro-Harmonix Holy Grail Plus images

  • Electro-Harmonix Holy Grail Plus
  • Electro-Harmonix Holy Grail Plus
  • Electro-Harmonix Holy Grail Plus
  • Electro-Harmonix Holy Grail Plus

Electro-Harmonix Holy Grail Plus manuals and other files

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Other names: holygrailplus, holy grail, holygrail

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