Summary: Had to give these a couple of weeks to 'burn in' and they sound fantastic. Had a pair of Klipsch in-ear headphones and I was blown away by them and these sound even better than that. They remind me of my Paradigm speakers in that they are very 'bright', which is strange because I'm more of a hiphop listener than anything.
Pros: Comfortable, Lots of options on rubber tips, Great sound
Summary: This is my first Sennheiser earphones and my mind is blown right now. Impressive product from Sennheiser. Perfect balance on low mids and highs. For bass lover, you will find this earphones really worth it. As the name says, this comes with bass response so the lows will never dissapoint you.
Pros: - Perfect sound, - Audiophile user will like this
Cons: to get a comfy fit, this will take a little bit more time and tricky at the same time. but after you get the perfect fit, this earphones might blow you away!!
Summary: I have these and the Monster Cable Pro Gold, and these fit soo much better in ear, thus making them a lot more comfortable. Also the cable going over the ear is more comfortable than I thought it would be. The Noise Isolation is fair even after going through all of the included ear bud options. The sound quality is excellent, even in comparison to the MC Golds, but that may be due to the better fit. They work well for airplane travel.
Pros: SQ, fit, quality, comfort.
Cons: Noise reduction is only fair, but still adequate.