I actually bought them yesterday, impulsively. This is the first open back I will get and I will make a review of them soon. :) might not be the best deal ever considering it was for $100 before, but still a good step into the right direction, I think?

I currently have Beyerdynamics DT770 pro 250.

What about HD6XX, is that really the end game? Are they the ones to go for when wanting something for a good price that is open back?