Apparently, but regardless as to how Sennheiser increased the perceived fuller base over the original 800s, the base still does not go that low, relatively speaking.
I was listening to Kraftwerk’s “The Mix” last night on my stereo, a pair of Dynaudio Special 25s augmented with a Velodyne DD12, the system has been calibrated and fairly flat,
and although I tried matching HD800S to the overall volume, switching back and forth the phones just sounded so much thinner (interestingly the HD700s less so), especially with regards to base.
Overall headphones just cannot not match the visceral impact and still maintain clarity and definition of a full range stereo system, although some get close the HD800S is not one of them… my LCD2.2s fair slightly better, but regardless… after a few minutes my ears do adjust to the output of the 800S and I’m very happy with them even with of the lack of sub base…definitely IMHO the best phones I’ve had the pleasure of owning.