no, tak myslim, ze je to rozhodnute, pomohlo mi toto:
http://www.headphonereviews.org/headphone/Beyerdynamic/DT770-80
http://www.headphonereviews.org/headphone/Beyerdynamic/DT770+(2005)

z toho druheho linku, co sa tyka tej CE verzie, tak:
"They are not for basshead. While they go low (if there is bass in the disc) they don't plumb the depths with power - they just reproduce whatever the source has on it."
alebo
"These are the most neutral and balanced headphones that I have owned/heard."

cize beriem tie 770Pro/80ohm. este dobre, ze som tolko hladal, by som si nakoniec kupil nieco podobne ako HD555. tak snad budem spokojny s nabasovanym Pro modelom. a riesi to aj impedancny problem tym padom :) jedine co ma sere, je ze nedostanem supersku kapsicku n mim, to budem musiet niekde lacnu zohnat.

dik vsetkym za rady.