That is a perfect example how Audio Note marketing bull$... can be more powerful than obvious truth - at least to some gullible, naive customers, supporters and forum enthusiasts.
Here is the naked truth:
View attachment 366410
These are measured resonances from Audio Note cabinet (
https://www.stereophile.com/content/audio-note-e-lexus-signature-loudspeaker-measurements) -
huge resonances which lasts more than 62 msec!!! Plus cabinet flexing for all frequencies below 200 Hz.
"Releasing energy from cabinet as fast as possible"?! In your dreams only!
Now, compare that with conventionally made cabinet from Triangle Antal (
https://www.stereophile.com/content/triangle-antal-40th-anniversary-edition-loudspeaker-measurements):
View attachment 366413
Resonances die faster (less than 62 msec) than Audio Note! Also, this Triangle Antal has exemplary flat frequency response and about the same sensitivity, for a fraction of price.
Also, compare measured resonances for conventionally made cabinet from KEF LS60 (cheaper, also):
View attachment 366415