I actually like Yamaha, I have had countless devices from them since their hi-fi beginnings and they have not disappointed me. The design of the Natural Sound series was particularly influential in terms of style. But this device is a terrible aberration of taste in my eyes. I even find the headphones very ugly.
I also wonder whether my cheap Topping L30 II might not be even better.
I don't know well like you, sir. Because I don't have enough exprience about audio equipment area. (I am in my 30s)
But I respect their history and when I have seen yamaha's report such as about beryllium diaphragm, I feel they was very innovatory in 20th century.
And when I was young my father had a yamaha amplfier and pioneer's set(tuner, cdp also). Thanks to those good quality equipments, my memory is fill with good music. Very reliable build quality better than nowdays cheap amplifier.
So, I never doubt yamaha audio equipment quality and it lead my first speaker. (Used msp5 studio and hs5)
But if there is my freind wants to make music or start to listen music, I will not recommend yamaha's equipment eventhough they have good quality. Now I use kh80 + subwoofer + minidsp and already recommended lp6v2 who wanted to buy hs5)
Generation is changed.
Price is not attract.
performance and measurement is similar to other high price famous brand.
In that area, I know there are other brand option.
That's why I said "that headphone is only for yamaha fan".
If my friend is rich and he wants to buy high-end headphone, I may recommend DC stealth or HM Susvara.
I hope my words don't make you uncomfortable