Best Studio Headphones Under $200?

FiiO is another good choice; I use to use the e7/e9 combo and loved it. The Asus DGx sound card though does actually have a dedicated headphone  amp that honestly sounded every bit as good as the FiiO combo I was using, at a fraction of the price. Just could not power speakers like the E9. 

If you must mix using headphones instead of studio monitors, make sure they are open design and comfortable and as neutral sounding as possible.
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