I started my journey with my first decent pair of Koss PortaPros, moving up to the Denon D2000s, the Beyer Dynamic DT990s, Ultrasone Pro 900s, still not being satisfied with those previous head sets I finally took the plunge and found  great deal on the Denon D7000s. Truly the best headphones I have heard to date, even after owning the Beyer Dynamic T1 and HifiMan HE500, I still prefer my D7000s as my go-to headphone.   For those who have heard the D2000s, 7000s differ from the 2000s with much richer sound, by that I mean a better interaction...

I owned the XB 500, 700, and the 1000s. I currently own Denon D7000 and Ultrasone Pro 2900 (so I may compare).. The XB 500 and 700 didn't give me any benefit to my current setup, they sounded muffled, the bass was present but not very clean, they didn't suit my taste. I read a great deal about the 1000s so I took the plunge once they became available in the US. I was really excited to get them cause I thought the ultra huge pad look would be kinda cool and comfortable.. But after wearing them for about an hour I have to say, I'm not crazy about...