I see where Tyll is coming from, but that mid-bass awkwardness was not much of an issue for me, considering how much they get right. The WS99 is a non-fatiguing, fun listen. A warm easy-to-drive headphone with an overall lush, musical sound. Male vocals in particular are wonderful with these. One can crank and get wonderful dynamics without any sign of sibilance or treble fatigue. While the bass has punch and depth, that mid-bass does creep a bit over the low mids, which might be an issue for some. There's just a sense here and there that the lower mids are wonky, but it wasn't a dealbreaker for me. A cool, sleek design adds to the appeal, though the cans have a somewhat odd connection to the headband. Just one screw that's right at the swivel point. This means that swiveling the cups can loosen the screw over time. It wouldn't be an issue, except that it's a tight fit to tighten the screw every now and then. Comfort is good. Replacement pads are easy to find, for anyone worried about earpad depth. One odd thing is that the back plate on one side has sharp, barely-polished ridges. It's a strange design decision, perhaps for easy differentiation of left and right. The WS99 has a beautiful minimalist design and makes for a great everyday, portable choice, with just those few cons above. I didn't keep these in my collection after an A-B comparison with the Momentum 2.0, because I fell for the detail and mid-centric sound of the Sennheiser's. But now I'm finding the Momentums overly bright with many sources, and I'm missing the Audio-Technicas. If one can overlook the minor cons (and the non-detachable cable), the WS99 is a lush, fun, and stylish steal at under $200. Anyone who cringes at the somewhat metallic treble of the M50x might want to consider auditioning these for non-studio use, for electronic music in particular.
Edited by timlily - 8/4/15 at 6:37am