“Copied from: http://www.head-fi.org/t/686039/cosmic-ears-ba4f-review I'm finding it hard to rate these, for the price I would give them 5 stars on every department. But I'd rather rate them, referenced with the idea of what the very best cIEM could be. The BA4f with the Ice Blue color Short History Before I started my journey into the cIEM...” --Marleybob217
“First of all I'd like to say the customs and the cable are both insane, the customs look incredible and the linum cable and connector beat the hell out of any other CIEM I've seen around. Cosmic Ears list this as a jack of all trades monitor which I do agree with. I'm coming from a 4BA model to this 2BA and I've been pleasantly surprised by the sound. I haven't had these a week yet so...” --daftpolecat
“First of all I'd like to say the customs and the cable are both insane, the customs look incredible and the linum cable and connector beat the hell out of any other CIEM I've seen around. Cosmic Ears list this as a jack of all trades monitor which I do agree with. I'm coming for a 4BA model to this 2BA and I've been pleasantly surprised by the sound. I haven't had these a week yet so...” --daftpolecat
The Flex model is designed to allow you to configure your earphones enabling you to build the perfect listening companion.
The HY2 combines a dynamic driver for lows and a balanced armature for the mids and highs. This dynamic driver also delivers an increased soundstage. The HY2 is a great sounding monitor for those looking for something a little different by combing the 2 driver technologies. Twin hybrid – 1 for lows, 1 for mids and highs Full sized medical grade hard acrylic shell Various...
“The HY3 is a three-way, three-driver hybrid custom in-ear monitor from Sweden-based Cosmic Ears. It utilizes a dynamic driver for the bass and twin balanced armature drivers for the midrange and treble, which used to be a very rare configuration, although hybrids have increased in popularity over the past year. The bass unit looks to be around 8mm in diameter and has its own sound bore. The two...” --blueangel2323
The Pure model is the fantastic entry model to our range of customs yet it still has the benefits of custom in ear monitor. The Pure fits perfectly to your ears, these high-quality headphones deliver a rich sound that off-the-shelf earbuds simply cannot match.
“ Note: the star ratings are not absolute, but instead relative to its street price at this time (~$55) The pl50 represent a good value in budget IEMs, provided you like its particular sound signature and quirks. The pl50s have a tiny form factor. They are easy to insert and remove, and are more than flat enough to lie down in. Needless to say, they are among the most comfortable...” --JxK
“First of all, I'd like to thank 'H20Fidelity' who recommended this IEM to me. I was not sure whether to go for this brand as i did not hear of it before. but thought of givin' them a try. Got it under 40USD. I had Sennheiser Precision 300-II before these and I liked them. The intention to purchase an IEM that was like Senn Precision 300-II was to have a pair of headphones that are just fun to...” --akshayshah12
“I have 5 sets of the e30 with varying amount of time on them ranging from brand new to 500 hours and there is so much variation that I don't know which one to review here. But generally, I'd say the e30 is neutral/warm yet detailed with a pleasing full bodied sound. It's 'hi-fidelity' in the sense that it imparts virtually no sound signature/sound stamp of its own onto your music...” --thelostMIDrange