What is the structure of modern full-size mid-range and high-end headphones?

Question

Do it yourself

I didn't find anything useful in RuNet. Interested in the structure of overhead and full-size headphones. Which speakers, how many of which types are used? Maybe there is information (articles, books) about the theory of headphone design. What do the headphones include besides the speakers? Maybe there are even some specialized CAD systems for audio systems? Maybe someone analyzed or considered something? In general, any technical information in any language.

Answer 1

Dynamics is usually still two.
As with "gags", not only performance characteristics are directly related to the cost of the product, but also its reliability - more attention is paid to the strength of materials, first of all, better cables and plugs, correct elastic inserts into the case (you can say "cable glands").
You need to search in English, and in Chinese, of course.
Personally, I only use "plugs", so I only research them, but I don't seriously repair them either, and even more so, I'm not going to open my own production in the near future. :) Therefore, I don’t particularly research and don’t document, but, here, some Philips for 800 rubles (probably can already be considered middle class) had a different way of attaching the cable in the case, instead of a “knot” it was threaded into the holes like a thread on a button, themselves they managed to make the wires thicker and stronger, although outwardly the cable did not seem to become thicker.
Better do your reverse engineering, rob the Euroset showcase or otherwise get all kinds of copies and open them. If, of course, it's worth it.

Answer 2

I recommend this forum, there are a lot of audiophile discussions there.
This is my reengineering of Koss over-ear headphones
forum.doctorhead.ru/index.php?app=tutorials&article=214