“Lets start off with the pros. When first out of the box they sounded great, good bass and slightly crushy highs but after a mere 10 hour burn in they sounded great, hard (but not thumping) bass and excellent no distortion highs. I mainly listened to EDM, house and hip hop and those genres sounded great in the ckx9is but vocal tracks from Ed Sheeran and Sam Smith wasn't at all shabby. Also, the...” --TheAfterEffect
“PROS - great sounding headphone - great in-ear fit - good quality cable - unobtrusive design CONS - slightly heavy bass for me NOTES Equal length cable for each ear (not for wearing behind the neck) ” --gingerbeardman
“I don't have any headphones to compare them to, as these are some of my first good quality headphones. They sound great, they're pretty comfortable, if you wear them around the house, or just walking around, they stay nicely in your ear, however if you do something that makes you sweat, they don't stay in your ear well. I'm guessing this can be fixed with custom tips, but I never bought any....” --RyanDN
“ CKS line improves the main problem of traditional audio technica products which was bass. CKS50 did not focus on the quantity but the quality of bass, it does not have the quantity for hard rock music but it was tight and powerful enough for pop-rock also it still have the sweet mids like audio technica do which makes my perfect choice for j-pop female vocal.” --Kiln
“The build quality of these earphones are perfect: from the very first time you hold a pair of these in your hands you know that they won't fall apart any time soon. But this build quality leads to some issues: the housing is pretty heavy and this can make the use of these clip-on styled headphones pretty uncomfortable for some people. Noise canceling isn't really good but keep in mind that this...” --Maniello
Manufacturer/Supplier: Audio-Technica U.S., Inc Manufacturer Part Number: ATH-CKM99 Brand Name: Audio-Technica Product Model: ATH-CKM99 Product Name: ATH-CKM99 Earphone Product Type: Earphone Connectivity Technology: Wired Wireless Technology: Not Applicable Cable Length: 23.62' Wireless Operating Distance: Not Applicable Sound Mode: Stereo Impedance: 16 Ohm Minimum Frequency Response: 5...
Portable on ear headphones with powerful bass
“I recently bought these as an upgrade to my Head Direct RE0's. The RE0's are outstanding value for money, and there is not many headphones that can beat it ... until I got my hands on the CK100's. The CK100 packaging box is nice - very simple, and does the job more than adequately. What I noticed on it, which I've not seen in many other headphone boxes is that it lists the product code for...” --s0126471