>ransient reproduction, while having a curve that facilitates mixes that will translate well. In other words, something that doesn't have exaggerated highs and lows, because then my mixes will be too flat. I was hoping these might be something to explore to this end, but it seems they're not re

WEll, those ones would theoretically have what you need, but the midrnage is somewhat thicker than what I consider perfectly neutral / spot on tonally, that may be visible in your mixes, which may end up sounding thinner, for you trying to get a perfectly balanced mix.

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S5X has perfectly fine treble and bass, like really nice, but that extra bit of thickness is audible. It is not like beats, or other commercial headphones bad, but it exists.