Of course, a pair of headphones may be the most gorgeous thing you've ever seen, but if they don't hold water when it comes to audio quality, the shine is quickly diminished. Luckily, this is not an issue with the Monster Beats, which offered an exceptionally--one might say shockingly--crisp response. Maybe we're pigeonholing here, but we expected Dr. Dre's headphones to be excessively heavy on the low-end. That's not to say there's no bass--it does thump--but these 'phones are nicely warm and balanced in the mids and truly impressive in their delivery of high-end detail. At no point did we suffer through the muddiness that can ail bass-heavy headphones.
If anything, some songs were a bit bright for our tastes and a few (but very few) tracks sounded harsh. More irritating is that the right earcup tends to rattle while you walk, so the Beats are probably best for stationary use. The genres that really shine are electronic, hard rock, and midtempo hip-hop, although other genres are also very good for the most part. No matter what the music, be forewarned that these headphones have a fair amount of sound leakage, so you're listening experience won't be entirely private.