Sv: I listen almost exclusively to metal and I'm thinking of getting either the Beyerdynamic DT 990 or the Sennheiser HD600.I agree with jupitreas.
I would NEVER buy a bright can for metal, but that's just me.
And I don't think hd600 and 650 are slow, they are actually quite fast.
If you don't believe me, check the headphone graph app over at headphone.com or maybe innerfidelity also (not sure tyll has measured them).
I will sell you my dt990 for 200 bucks (not the pro version) tho, if you won't take my advise (too bright for me).
Skickat från min GT-I9100 via Tapatalk 2