I wouldn't have thought so. I don't know how people can hear so differently.
Both the D7000 and TH600 are absolute sub bass monsters. I wouldn't expect any different with the TH900.
I honestly laughed out loud when I was testing the TH600. I've heard so many impressions stating the bass was a bit reigned in, and it was more neutral sounding. What I've heard and felt was... BOOM, THUNDER, RUMBLE on my fave tracks and video games. I was so pleased that these people were 100% wrong. I think people focus too much on mid bass, and I guess that's where the direct impact may be not as strong as some mid bass heavy headphones.
For quite some time, I had felt that my preference for sound was a raised bass. After getting. Th900, I now realise that it's not actually more bass that I want, but more sub bass.
Once that is in place, I feel that the headphone is much more satisfying to listen to.
Too many headphones have a large hump in the mid bass which gives the impression of a big bass where there is no real sub bass. Once you hear it though, your choice of future headphones becomes limited!