@kosst_amojan
Obviously some implementations are better than other. My statement pertains to the problem of lack of internal damping in most metallic drivers (magnesium being perhaps a notable exception).
I count 5 resonances on the Focal Aria tweeter lasting up to 1.5 msec. These resonances are much much longer than the wavelength of the sounds that tweeter emits (an eternity in terms of PRAT) and will definitely color the sound in the way I described.
The resonances are multiple as a rigid disc has multiple resonant modes. I know this for sure as I have large collection of Sabian, Zildjian and Paiste cymbals and they shimmer with all kinds of non harmonic tones. A cymbal is an exaggerated example but the same principle stands.
If you want to hear musical timbre you need a driver that is critically damped - being inert it just gets out of the way once the desired movement is executed.
2 msec of waterfall hash on the first example I gave is really going to affect everything: the timbre of transients on percussive instruments (twang of guitar strings) to the articulation of sbilance on vocals.
The high but very narrow or sharp resonance peaks sometimes seen on JA plots is something to do with his measurement setup - you can ignore those - they look too narrow to be real effects.
FWIW the best waterfall plot I have seen, apart from the one on the Joseph Audio speaker linked above, is on a Quad electrostatic. So for those people who can hear what a difference a good electrostic speaker makes audibly in timbre then you can appreciate how a rigid tweeter can be coloring the sound in the way I describe.
Obviously some implementations are better than other. My statement pertains to the problem of lack of internal damping in most metallic drivers (magnesium being perhaps a notable exception).
I count 5 resonances on the Focal Aria tweeter lasting up to 1.5 msec. These resonances are much much longer than the wavelength of the sounds that tweeter emits (an eternity in terms of PRAT) and will definitely color the sound in the way I described.
The resonances are multiple as a rigid disc has multiple resonant modes. I know this for sure as I have large collection of Sabian, Zildjian and Paiste cymbals and they shimmer with all kinds of non harmonic tones. A cymbal is an exaggerated example but the same principle stands.
If you want to hear musical timbre you need a driver that is critically damped - being inert it just gets out of the way once the desired movement is executed.
2 msec of waterfall hash on the first example I gave is really going to affect everything: the timbre of transients on percussive instruments (twang of guitar strings) to the articulation of sbilance on vocals.
The high but very narrow or sharp resonance peaks sometimes seen on JA plots is something to do with his measurement setup - you can ignore those - they look too narrow to be real effects.
FWIW the best waterfall plot I have seen, apart from the one on the Joseph Audio speaker linked above, is on a Quad electrostatic. So for those people who can hear what a difference a good electrostic speaker makes audibly in timbre then you can appreciate how a rigid tweeter can be coloring the sound in the way I describe.