Electro-Harmonix Holy Grail
Electro-Harmonix Holy Grail

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

mooseherman 03/03/2010

Electro-Harmonix Holy Grail : mooseherman's user review


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This is a unique analog reverb pedal. It can't be edited through a PC or Mac, and is not controllable by MIDI. It isn't rackable, as it is a guitar pedal. It has a 1/4" input and a 1/4" output, and can be powered with a power supply that comes with it, as well as with a battery.


The editing on this box couldn't be easier. It has one knob and a switch with three modes. The different modes are spring reverb, which is similar (almost identical) to the reverb found in old-school guitar amps. The next setting, hall, is pretty obvious. It sounds like you are playing in a room with lots of natural reverb. The third setting is called "flurb" and it stands for a mixture of flanger and reverb, which is a good way of describing the effect.


I use this primarily with my Strat and Twin combo, since I use that most. I've tried it with an SG as well, and I liked that too. In general, this pedal will probably work the same with most guitars, and will possibly work well with other instruments like bass, keys, and vocals too. The quality of the sound is pretty awesome. It doesn't color the sound too hard from what was originally plugged it. It's generally pretty transparent. I thought that only having the one knob would be kind of limiting, as there isn't a whole lot of control to be found, but I actually kind of liked it after awhile. The fact is, the pedal is only capable of producing GREAT tones. It just depends on how much reverb you want there to be. I think that the spring and hall settings are way better than the "flurb" setting, but that's mainly because I am not a huge fan of the flanger effect in general. That being said, the spring setting is almost exactly like the reverb on my twin amp, except possibly clearer. I was quite a fan of it, really. The hall reverb is also quite natural. I like the sound of really reverberant rooms in general, but it's not always possible to record parts in rooms like that. This is when pedals like this come in handy. It seems like each value on the knob is like a different tone, good for almost every purpose.


The only thing I disliked about this pedal was the "flurb" setting. I had no use for it. Otherwise, it sounded great. Even though its marketed as being great for recording, I don't know if this is necessarily true, as the reverb does not have many ways to affect the sound. It might be difficult to manage within the context of recording a song. I think that this is a perfect pedal if you want reverb on your guitar during a live show. It might work with vocals for live shows, as well. I think that this is a great pedal, which isn't surprising since this company has always made great pedals.