We just received the new 684 S2, 683 S2, HTM61 S2 and HTM 62 S2 Bowers and Wilkins. At first glance they look quite similar to the previous ones. On closer inspection the whole range seems to have lost some bulk the 684 S2 are much thinner. The design has been streamlined in every dimension and the internals have been reworked as well. The new double dome tweeter design borrowed from the CM10 is a big upgrade. We are unboxing as I right this so more detailed analysis to follow once we have them setup.