Hello, I really loved HD600, but I don't have it now. There's only HD598s. I was considering buying a new pair and saw the Massdrop deal. My main concerns are; 1) Does boosted bass smear the mid like in hd598? 2) I listen to female vocal songs. 600 was perfect for me. But some say vocals in 650 sound too distant. Is it true?? 650/6xx users, could you tell me how is the vocal in these songs - 'Agnes Obel - the Curse'(Classical), 'Lisa Hannigan - Prayer for the Dying'(Folk), 'Lorde - Perfect Places'(Pop). 3) treble in 650 fr graph looks similiar to 598. Is it really this bad like 598? 600 had all the details ... The drop will end soon, so I wanted to get help as much as I can. These can be the deal breaker for me..