These are my third semi pro cans. I had the tf10s originally , like the 215 they too had detachable cables. I think the sound signature of those were really really good especially for that subtle Guitar tunes like knoflers . However they were really bad comfort wise. I next got the gro7s those were pathetic quality was horrible and i barely used them. The plastic finishing was poor and used to hurt your ears. Now the se 215s have the best isolation among the three, I can barely hear the car bus moving even when the audio is off. The cable is long and thick, this is important becAuse you could drop your cans and the weight of the wire ensures that wire doesn't take elastic damage. Coming to the sound. I almost never listen to bass heavy tracks, so I don't look for a bombastic sound signature. The se 215s are subtle ensuring that in a melody of instruments you can listen to each and every one. For the price I think these are probably the best cans you can get. Service and delivery was spot on would buy again, probably the m50s.