How the Electro-Harmonix Holy Grail Was Born From a Basement Discovery
In 2022, Josh Scott was digging through the basement at Electro-Harmonics in Queens when he found something remarkable: the original prototype of what would become one of the most iconic reverb pedals in guitar history. The unit was insane—wrapped in 2002, it contained eight different reverb sounds hidden inside.
The story begins around 2000, when Mike Matthews attended a trade show and discovered a new chipset: the Crystal CS4811. This wasn't yet FV1 or spin technology—it was something earlier, something that would soon change everything about how guitar players created reverb.
"Mike saw an opportunity and jumped on it immediately. He had it in the hands of an engineer and produced a product before anyone else."
When Mike returned from the trade show, he handed the chipset to John Pasani, then a new engineer at Electro-Harmonics. Pasani—still the head engineer today—was described by Scott as brilliant, maybe his favorite person at EHX. With help from Dave Vaneps (who brought in a real Fender spring reverb unit for reference) and Ross Tatino (who assisted with some tones), Pasani went to work.
By 2002, the prototype was complete. Inside were eight sounds. On the outside, there were three toggle positions: flurb, room, and something else entirely. The story of why they chose "flurb" over "room" is pure Electro-Harmonics—Scott recalls a note where Mike wrote simply: "Flurb. Because it's weird."
The Engineering Decision
The original Rev A units that shipped to customers had a secret: if you knew how to hack them, you could access five hidden sounds beyond the three on the outside. Eight total sounds. This wasn't widely known—Scott called it "outing" information that no one had ever publicly disclosed.
What made this significant wasn't just the sounds themselves, but what they represented. At the time, the only competing products were the Boss RV3 and Digitech's DigiVerb. The Electro-Harmonics entry was groundbreaking in its simplicity and its use of new technology—digital signal processing that came from outside the guitar industry.
"Digital signal processing... you have to think about all the things that use signals," Scott said during the original conversation. "Guitar is not in a vacuum. It's affected by things out of it."
Why It Matters
The Holy Grail still appears on countless pedal boards today. The spring setting, particularly, remains unbeatable according to Scott's experience with rigs, sound checks, and artists standing on stages.
Critics might note that the reverence for vintage digital technology risks romanticizing quirks that some players might call simply imperfect. Others might argue that calling Electro-Harmonics "one of the greatest companies in American history" when it comes to innovation is hyperbolic—though few would dispute their impact on pedal architecture and design.
Bottom Line
This story captures something often lost in gear history: how a chance discovery in a basement led to one of the most recognizable sounds in guitar processing. The strongest part of the argument is its concrete detail—the prototype, the engineers by name, the chipset by model number. The vulnerability is the same as always with these stories: it's hard to verify all the claims without primary sources. But if you're looking for how modern reverb pedals began, this is where they started.