Danwrote a review of Beats by Dre Beats by Dre Studio High-Definition Headphones on November 5, 2012
Absolute crap for professional mixing...WAY too much boost in the low end...sounds like at least +6dB below 150Hz, and that's waaaaaay too much. Noise cancellation, so neither you nor your vocalist will accurately be able to hear what you are singing...too much of a boost in the high end as well, something like +4dB or more beyond 5KHz...if you want to listen to music, then that's just fine, 5/5. But if you actually want to professionally produce and mix a track and distribute it to your label owners without the embarrassment of not being able to properly mix a track, go somewhere else. Grado, Sennheiser, and Beyer-Dynamic have a LOT better in their higher end products, which are actual STUDIO headphones (for those unaware, these are professionally referred to as "Monitor Headphones", not "Studio headphones" - your first clue that the developer of Beats doesn't have a clue about true or professional audio production). To end my rant, it's a waste of money. If I wanted a pair of headphones that gave me more bass, i'd buy a $40 pair of Sony's, and I'd use the built-in EQ presets on my mp3 player.