Comparison-wise, the highlight had to be my session switching between my HE1000s and Mark's HD800, on his McIntosh system.
What I thought:
- HD800 had a more growl-y, "audibly textured" bass, while HE1000's bass was more tactile and "physically textured". Both were exquisite, but in very different ways. Based on quite a few tracks, I found HE1000's bass presentation to be more musical and fun, without losing out on the low frequency detail level.