Yeah had both. The classics were gorgeous sounding headphones with a thick sound. They are very relaxing and warm. These are one of my fav headphones ever in terms of toneality. The Focal Professional is also excellent, it's more reference sounding, more extension at both ends but less of a mid bass hump. Both are similar but both sound different enough to be different flavors.
I sold both as although the comfort didn't bother me in the first month or so..really agitated my ear piercings.
If you don't mind spending a little extra I really recommend the Shure 1540. It is just so comfortable and great sounding.