Thanks for detailed replies. The thing is I share my room with my brother and we both want some 150ich headphones we tried a lot of them.
imgur com/Oe2da51
K550 harsh treble around 4K bass on low side
Over-hyped M50 everything is deep sounding mids are on bassy side
Senheiser 598 Extremely conformable from mids to highs very smooth, bass is decent but nothing special
Then we got baredynamics which i had only 770, 990 both pro versions 250ohms
770 very boomy bass kind of like in cinema
990 just best of all i tried {not better than Sony MA900
}The thing is 990 are just open 770 i know closed headphones will always sound more bassy and different than open.
Then i tried listening test with my brother next to me and we decided that sound leakage is not that big of an issue but it would help just a little improvement lets say just 20%
lees leakage would be perfect. Thats what this topic was all about .
Thanks for nice pictures of open 880 i was looking on the interwebs how they are build inside to figure out if there is any blockage but i couldnt find such nice pictures like you provided. After what i have read i think im going to go for double 990s because 880 would have less bass and wouldnt seal more.Also lot of people claiming that 990 are the best of three.English is not my native language so sorry for any mistakes