dlaloum wrote:There was a time when definitions of high fidelity reproduction were based on a bandwidth covering 40Hz to 16kHz...
For good reason. Above 15kHz, if one can hear at all, qualitative hearing is virtually absent. No pitch sensitivity. No tonal sensitivity. Significantly lowered threshold detection. And not much spectral content anyway.
And actually, such hearing 'degradation' typically begins at far lower frequencies still. It's not like a brick wall. You think you can perceive tonal quality well, even at 8kHz ?
So, the frequency range where conical performance might become disadvantaged is not typically qualitatively important. It's no accident that conicals can sound good in a way that exposes myths of specmanship.
20kHz was chosen as an arbitrary population limit
description. It says nothing of qualitative perception. That's the mistake here. That leads to attaching value to effects which have far lower audibility, if any, than misinterpretation of raw specs might suggest.
I went full circle on this, before the penny dropped, and so I came to respect the quality conical.