OK I read a lot, own Beyerdynamic MMX 300 and Asus STX/DX. I really like my headset, deep lows - I used EQ to emphasize highs and mids. Want to try open design now, best I come across - Beyerdynamic DT 990 PRO 600ohm, AKG Q701, Audio Technica ATH-A900X. I am from Serbia and in my country it is...