Electro-Harmonix Holy Grail Nano Reverb
Rating: 4.0 / 5
A simple, great-sounding reverb in a tiny box. Three modes, one knob — the no-fuss way to add space to your tone.

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Pros
- Great-sounding spring and hall
- Tiny footprint
- Dead simple, one knob
- Affordable
Cons
- Only three modes
- No tone control
- Flerb mode is niche
Reverb, simplified
The Holy Grail Nano strips reverb back to the essentials: spring, hall and a wild "flerb" (flanged reverb), with a single Amount knob. It sounds genuinely good — the spring in particular is a favourite — and the tiny footprint makes it easy to squeeze onto any board.
Where to buy: Check the current price of the Electro-Harmonix Holy Grail Nano Reverb on Amazon →
If you want quality reverb without menus, modes or fuss, this is one of the best simple options going, and the price is friendly.