Every component in the chain makes a difference, be it large or small. If your plan is to match the original recording as cleanly as possible, you want to have as little degradation of the source as possible. And each poor quality component will degrade the signal quality far more than something that makes a better connection using better quality materials.
Cables make a difference, power makes a difference, components, and the connections between each of them makes a difference. The point being to do as little harm to the original signal as possible,
No one here is claiming that tube connectors are a magic that will sprinkle fairy dust on the music to make it sound better. The point is doing minimal harm to that signal, by remaining low mass, non-ferrous, while providing a direct, solid connection along the signal path before it even gets to the crossover.
Even so, I honestly get the feeling that it doesn't matter what anyone says or does. Even if you had a panel of 10 blind folded people give their experience without an indication beyond being called A or B and having each of them give their own summation of the experience, I feel like you would still find a reason to deny it. Because there's no empirical tests that shows enough of a difference for you to consider it a possibility.
Do I expect you to believe what we have to say? No.
But i would have at least hoped you would be willing to consider a difference in perspective; set aside your own biases, do your own testing & come to your own conclusions.
