But it doesn’t really provide anything like a range. I.e. for NAC A5 minimum is 3.5uH, at recommended max is 20uH. So that’s an okay range? But the max length is probably restricted by resistance as also indicated by the above, so not the inductance.
So now we know something about NAC A5 (min. 3.5m, max 20m), and lightly twisted multistrand wire. But what about another type of cable? We have to resort to (educated) guesswork.
And it’s certainly not an exact spec, even if the exact range (specwise) is not clear, there’s ranges specified for their cable.
“… might be summed up in the following words:
what can be said at all can be said clearly, and what we cannot talk about we must pass over in silence.”
Except even they sell two different speaker cables with very different specs. 3.5 min. will result in different values for either. And supposedly 7-10 sounds best, not 3.5 at least in the case of NAC A5. So it’s certainly not exact, there’s a range, and many different cables could meet those requirements. If they were known of course.