“I tested it with Dr.Chesky's Binaural album and Depeche Mode flacs. What I like most is of course bass response..it is more than enough, maybe a bit exaggerated, aggressive. Overall, I am really satisfied this excessive response in some genres.The only real problem it is prone to loudness noise of the record.. Maybe this is because the drivers are too sensitive. I am not that high end...” --ajlan
“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
“i hate when they do that. i was using kdx100 & kdx200 for nearly 1 year and i did spent a stable $120 for the two. now i'm realizing actually the $15 ruk30 and $7 plug weren't much worse. kdx200 was a little different from ruk30 at least, but comparing plug to kdx100 just hurts... this was something i was expecting after ruk30 vs kdx200 comparison but god knows i wasn't expecting a totally...” --vaziyetu
“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
“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
“i spent the year 2014 with testing budget earphones and koss company never disappointed me. buying kdx100 was undoubtedly my best decision. it was kind of unplanned because my intention was to find something better than ruk30; and kdx200 as the pricier one, was looking like a better target. but i decided to give a chance to this one. because it was looking very different...” --vaziyetu
“Pros and Cons section pretty much explains everything. i advice you to read my updated ruk30 review first to get an idea about this earphone: http://www.head-fi.org/products/koss-ruk-30k-noise-isolating-in-ear-stereophone-black/reviews/11943 there is not much to talk specifically about kdx200 here. it shares nearly the same driver with ruk30 and costs 3 times more while offers...” --vaziyetu
SportBud headphones by Koss are molded in the colors of your favorite NCAA team, including their collegiate logo This 2 pair pack of ultra-lightweight in-ear SportBuds is perfect for music on the go You get both home and away colors This dual portable stereophone unit includes a see-through, compact, wind-up spool carrying case for easy storage and protection when not in use 4-foot straight...
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...