CokemanI bought these cause I read 'they are the predecessor to the 600s' thinking they were the next model up. Turns out I should have bought the 600s instead. Well at least I'll have some nice listening headphones now instead!
Lorin123Personally, I'd choose more analytical headphones for music production and possibly switch to these for overdubs if the sound got too fatiguing (and for spatial differentiation, at which the HD6XXs excel). The HD600s are commonly used for classical music (they were the house headphone for the Deutsche Grammaphon back in the day). Virtually every studio I've frequented in NYC has offered some version of the Sony MDR7506/V6 for mixing for the past twenty years. The MDR7509s were also good. Sometimes you see the MDR7509HD, but those seem to be less useful even though they reportedly have a flatter frequency range. The plastic construction of the 7509s is also not my favorite.
Caveat: All of the Sonys seem to be a tad light in the lower mids, which can be a problem, esp. if the music you're working on features sound in that range. You can easily overemphasize those frequencies because you won't hear them as well.