This is a very strange thing. The SE215 which I bought from Amazon was produced in Nov of 2011 according to the sticker. And this set is the set that i feel like it does not have a very strong bass according to most reviews here on head-fi.
I have recently bought another pair of SE215 from another vendor since I had a 20USD off coupon. This set is made in Sept of 2011 and the second i put this set in i noticed the bass. Is it possible that Shure does not have a straight across tuning process when making these SE215s?
My buddies also tested these two sets and agreed with me.
Anyone else had similar experience?