During a Q&A that unfolded at the famous Chinese Theatre in Hollywood, California, DiBergi spoke with all three of Spinal Tap’s members after a screening of “Spinal Tap 2,” and it was live-streamed around the United States for a special advance screening for the biggest Spinal Tap fans. In their conversation, DiBergi revealed a little tidbit that didn’t make it into the final cut of his follow-up documentary:

“We didn’t really get into it, but you guys now have an amp that goes beyond 11; it goes to infinity.”

Understandably, DiBergi didn’t really understand how this amp worked either. “How loud is that?” the filmmaker asked. Nigel (seen above) responded:

“You seem upset. What’s going on? It’s conceptual in the same way 11 was a big jump from 10, and Marshall [the amp brand] said, ‘What about infinity?’ and I said, ‘Definitely.’ Because it’s limitless, you know? I don’t have to think, ‘Oh, I can’t go anywhere from here, I can go anywhere from here and keep going and going and going.'”

However, even St. Hubbins wasn’t sure how this amp worked. “What’s the limit though?” he asked, to which Nigel responded in a somewhat frustrated fashion, “Well, there’s no limit. Why would there be a limit? Who cares?” 

DiBergi finally seemed to get it, when he said, “It’s like the universe, the universe is infinite.” And Nigel agreed, “Yeah, if you look up in the sky, it’s the same thing. So that’s what they did for me, and that’s what I’ve been using. In the film, I used it.”

We’re assuming that this updated amp is truly in the movie, and there may even be a scene that was filmed for the sequel that just ended up on the cutting room floor. Perhaps the bit just didn’t land as firmly as the film’s creatives might have hoped. But that doesn’t mean we won’t see it at some point.

Any Spinal Tap fan can tell you that there was hours of unused footage from the original mockumentary — and since this film was improvised and shot in largely the same way, we’re bound to get a look at some bonus footage, including the potential introduction of this amp that goes to infinity.

“Spinal Tap 2: The End Continues” hits theaters on September 12, 2025.