Hey Head fi , I'm planning to get a new pair of IEMs for the price of $80-$100 US, but I need some advice. I will use these mostly for going to school or outside and will listen to a mixture of rock and electro. I prefer not to have an over the ear design when going outside. I have been looking at the Hifi-Man RE-400 and the Dunu DN-23 Landmine (Leaning towards RE-400 more. I recently had the Audio Technica ATH-CKM500, still have the Shure SE215 and the Shure SE535LTD. So compared to those three will there be a major difference in sound signature? Thanks! Feel free to contact if more detail is needed!