Synergestic Black Fuse vs Audio Magic BeesWax

Who or what is the false authority being appealed to? The person making the claim is automatically the authority of the claim. Being unconvinced by a claim lacking a legitimate theory, supported by dubious evidence, and built on broken logic doesn't make somebody an authority or "false authority" because it takes no authority to observe the obvious. It makes the unconvinced party not a gullible fool.

I'm pretty sure your base rate fallacy claim isn't right either. That has to do with statistics and probabilities, and there aren't any statistics or probabilities in question it would apply to. Maybe it's not a Texas sharp shooters fallacy, but Geoff is certainly appealing to the authority a sales number represents, which is an insignificant number that doesn't prove anything.

The base rate fallacy, also called base rate neglect or base rate bias, is a formal fallacy. If presented with related base rate information (some fuses sold) and specific information (all fuses sold), the mind tends to ignore the former and focus on the latter. 

It's ALWAYS on those who make an affirmative claim to prove the claim with a plausible theory and valid evidence. Sans a plausible theory and valid evidence, the claim is rightly written off as nonsense.

Geoff is making a Texas sharp shooter fallacy. He's claiming that because 90,000 boutique fuses have been sold to happy customers, they must do something, while deliberately ignoring the billions of fuses billions of people use every day quite happily as well. His argument could just as easily be flipped to say "Because billions of common fuses have been sold with overwhelming customer satisfaction, common fuses must be superior". Neither argument is necessarily logical or accurate because both presume sales volume somehow correlates to technical capabilities. It's an idiotic presumption on it's face.