Thanks again for all of the feedback and helpful suggestions. I will say that the MS 400 sound matches exactly what I said I was looking for. I am wearing them today to see if I can get used to the comfort. If I do keep them, I will try out some of the modifications listed. I will say though, that for me the comfort...or lack thereof, comes from the headband and not the ear cups. Since I shave my head, I am pretty sensitive to the materials used in the headband and how they distribute weight. The one thing I really liked about the KNS-8400s was the headband with its two pads, one on either side of the band.
I am still considering a couple of other options: The pro 750s, the dt770s, and a couple of Audio Technicas
The Pro 750s seem to have several people who identify them as uncomfortable (may not be good for me) and some feel they are two sharp (especially unamped/not broken in) for female vocals.
The Beryerdynamic 770 32 seem to get a wide range of feedback from being the most comfort headphones people have used. However, the description of the sound seems to vary from person to person quite a bit and I am not sure if they would provide what I am looking for.
Audio Technica has caught my attention in that they appear to have several options with headbands setup in a way similar to the KNS-8400 that I found to be very comfortable-but most of those seem to be open back and not closed.
I don't have to have a closed headphone per se. I have my own office, I just need something to keep me from blaring music loudly enough that it disturbs people with offices on either side of mine or down the hall. I would probably use whatever I buy to travel, but that is only about 3-4 times a year compared to daily listening at work. I just figured that closed would provide me with the best range.