This question might be a dumb one for most people but I want to know if you had under $600 would you get a better set of studio headphones or get an acoustic treatment for your mixing room?
Presuming that I
could treat the room I mix in, it's a no brainer ~ I'd spend it on the room treatment. I cannot forsee any circumstance that even God could conjour up that would entail me spending 600 big ones {or even just under 600 big ones !} on headphones. Even
my imagination is not that expansive.
But I do not agree that one can't mix with headphones. You can, but it's not a simple, straightforward event that can be cracked in a day, which is why it's rarely recommended, especially to those new to mixing. But like
anything in audio, it is
possible. Not preferable, but possible, once you've learned to figure out how your headphone
X translates to real world
Y.
If you're still around reading this, all I can say is that if you have near $600 and these two are your options, forget the headphones ! As you use the term 'better', I presume you already have some.
Invest in some monitors and bass traps.