u/Cyrenetes

For example Fiio FT1 "at 70dB, 80dB, 90dB and 98dB SPL (at 1kHz)."

https://diyaudioheaven.wordpress.com/measurements/fiio/ft1/

Or Hifiman Edition XS "at 60dB, 70dB, 80dB, 90dB and 95dB SPL"

https://diyaudioheaven.wordpress.com/measurements/hifiman/edition-xs-2023/

Focal Clear "at 60dB, 70dB, 80dB, 90dB and 100dB SPL (@500Hz)"

https://diyaudioheaven.wordpress.com/measurements/focal/clear/

The famously "dynamic" sounding Clear's sub bass seems to go up with SPL while the FT1 goes down??

Is this difference audible? Is/isn't this proof that FR is not everything and that what headphiles call dynamics outside FR is real?