2+ hours with the HE-400 on?? No. HE series are heavy, bulky and not the best in the comfort area. They sound great, but comfortable is not a word I would associate with them. I'm talking pleather or velour pads. The K550 was quite comfy, but they did make my ears sweat after the first hour or so (when I had a perfect seal).
2/11/14 at 9:05am