I believe that the SE215 is a new entry into the Shure line designed to bridge the gap between the SE115 and SE315 series. It uses a dynamic driver (like the SE115) but has the detachable cable (like the SE315). The SE210 has a balanced armature driver which would probably justify the higher price.
okey so the se315 has a "single high-definition microdriver with tuned bassport" does this mean that the se315 has a balanced armature drive like the se210 but with extra bass?? because i like my se210 but wouldn't mind some extra bass.
if i will buy the se215 than it would be basically going downwards? i dont what that