to understand what you are talking about, you need to have experience in using and information about the applied technologies
...
The experience of many headphones, I have (more than 15 years of experience with headphones), with a total budget exceeding several tens of thousands of euros for all the high-end headphones bought, and the observation, bitter for some and funny for others, is that there is no correlation between the price of the headphones bought and the sound quality reproduced.
As for the technologies used for these headphones, planar and elctrodynamic, they are old and nothing revolutionary has happened in the last decades, concerning these two technologies.
I would say that with Kennerton, we do not go towards the good direction, with planar membranes increasingly thick (and thus heavy) culminating in 20 micrometers with the Rognir, certainly which can favor the "weight" of the bass (but not always), but not the agility of the membranes. Without counting, a crying defect of tone of these Kennerton headphones, including for the most faithful of them (that I still own, the Thror).
As for the "giant" electrodynamic drivers of more than 72 mm in diameter, well, it will be good for the heaviness of the bass; as for the agility of such a big (and heavy) driver, I ask to see, for example compared to the small 42 mm driver of a mid-range Sennheiser headphone, especially of the last generation.
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