Leonardo, I can understand your frustration and that you're somewhat deceived, but the cold fact is that manufacturers, as soon as they can produce a new "improvement" and charge you for it, they'll do. You've been in this hobby long enough to know. If you're happy with the Roxannes, just enjoy them, but if you think they can be improved and you know more or less for sure that another product improves that, swap them and don't look back. One of our biggest problems as audio hobbyists is not knowing where we want to go and what we want to achieve. Not knowing that places us in that silly continuous "searching for the better". IMO it's just ignorance disguised as curiosity fuelling that.