Bests & Worsts Reviews from Amazon

Bose IE2i and Bose AE2 I had a pair of Bose IE2i to listen to music when in my office, studying, running, gym, etc. I also had a pair of Bose AE2 that I used to play my electric drum set. I got tired of the IE2i and stopped using them altogether because those do not isolate any noises whatsoever. Like the new Bose SoundSport the earphone tips/buds are extremely comfortable, but you can hear every single noise from outside. I tried to use the IE2i in several 5-hr flights and they are useless. The AE2 sounded very good and isolated some noise. Enough to enjoy using them with my drumkit, but not enough to use on a plane ride. SE425 Fantastic mid-range, poor bass and low-end; low impedance; long and strong cord; ability to replace only the cord if broken. Very comfortable behind-the-ear cord and position on the ear with great noise isolation. Given their lack of low-range these could not satisfy my needs. Expensive. Bose SoundTrue Ultra in-ear STIE Great balanced sound; strong bass; short and thin/flimsy cord; includes iPhone controls. Very comfortable silicone tips that provide great noise isolation, but you can hear the cord touching against any surface. Easy and fast to take on/off. The earphones wiggle a bit when running, though not enough to break the sound seal. Relatively expensive. SE215 Great balanced sound; strong bass; low impedance; long and strong cord, ability to replace only the cord if broken. Very comfortable behind-the-ear cord and position on the ear with great noise isolation. I can hear comfortably with 2/16 volume bars from the iPhone. Used 5/16 volume bars on the iPhone when running with 15 mph winds and was amazing. After a learning curve, you get used to quickly putting them on/off. Inexpensive. Overall I got the SE425 first and discarded them for their lack of bass. I couldn't notice much of a sound difference between the STIE and the SE215. The SE215 have a lower impedance and thus sound louder but the quality is, to me, quite comparable (My suggestion: get a tight seal, don't go too deep into your ear). The benefits of the SE215 suit my overall needs better and ended up choosing these. Notes 1. I will post this same review in all three products hoping others will find it useful. 2. I am traveling in a couple of days and if I find a good store in an airport that will let me try the SE535 I will make an update to this post. The SE535 are supposed to be as good as the SE425 with the bass that the latter so deeply lack. ******UPDATE****** A store at the Chicage O'Hare airport let me try the SE535. Here is my short review: SE535 Fantastic balanced sound; great bass and low-end; low-enough impedance; long and strong cord, ability to replace only the cord if broken. Very comfortable behind-the-ear cord and position on the ear with great noise isolation. Many eartips to try for different occassions (e.g. biking, office, airplane). I can hear comfortably with 2/16 volume bars from the iPhone. With 3/16 volume bars on iPhone 5S the sound is astonishing, lead guitar doesn't sound over rythm guitar, bass and drums sound great and all sounds are complimenting one another as opposed to fighting over which is the primary sounding one. I use them for running, biking, skating, working out, in the office, at the library, coffee shop, in the car (passenger), on airplanes, and with my Roland TD30-KV electric drumkit. I never need more than 4/16 volume bars on my iPhone 5S. I specially like the versatility of these IEMs and quality of their sound. Expensive. I sincerely hope you find this review helpful!