The Holy Grail Neo from Electro-Harmonix is a compact digital reverb pedal that features three different reverb algorithms: Spring, Hall, and Plate. The algorithms were designed and tailored for the electric guitar, but work equally well with most instruments and voices. A three-position switch lets you choose the reverb style and a Reverb knob acts as a wet/dry control. The unit is enclosed in a compact, rugged die-cast chassis, and comes with a US9.6VDC-200BI power supply.

The Spring algorithm is a re-creation of the classic spring reverbs that are found in many guitar amplifiers. The Hall algorithm simulates the reverberations heard in large spaces such as concert halls and cathedrals. The Plate algorithm is an emulation of a metal plate reverb which was commonly found in high-end recording studios during the 1960s and '70s; it is a very smooth, tonally balanced reverb that works well on many different instruments, and especially on vocals. True bypass switching ensures your tone won't be affected when the pedal is bypassed.