If several people can all hear it on soundcloud in a single pass then it’s clear enough? Several people mentioned the top end as the main difference - either a difference can be heard or it can’t.
As I said already, I think whether it matters or not is open to debate, and a subjective matter for each individual. However, there is no debate that Agoura sounds less bright in your examples, or any of the others that have been posted.
As I've clearly stated before, those who believe that Agoura modelling is darker by nature might be right, there are Agoura demos on you tube that seems to show that behavior.
But Karl's clips can't tell us nothing about it.
One of the clip is slightly brighter or the other is slightly darker, depending on how you want so see it.
(and there's also a difference in the low end)
Without a reference point, aka the amps being modeled, we can't draw any conclusion based on those clips.
To use those clips as a data point for the argument of Agoura being darker, we have assume that fractal model is more accurate and that's a strong assumption, and that the amps being modeled are identical.
Are these a legit assumptions?
It might be that fractal is more accurate, given the history of fractal modelling, but is an assumptions nonetheless.
Dying on Karl's clips hill seems a bit a classic case of confirmation bias, If I may.
The only thing that Karl's clips tell us without assuming things is that fractal and Agoura model sound really close to each other with those settings.
I understand and relate to your passion for sounds and all but man, you should just relax and wait. Time will tell the whole story.