“I bought these because I previously had some Yamaha EPH20 In-Ear Headphone which I was happy with but did not suite my for the large variety of music I listen to. First I will compare between the Yamaha and Sony, both brands I trust greatly for budget ear buds. The yamaha I brought because I fancied something with some booming bass,fit was excellent and kept the noise out well I even used...” --Hawkinssa
“first of all, i believe, sony wanted to make hybrid earbuds for a better sound my expanding the soundstage, however the strategy failed. the soundstage has improved (the large size helps a lot too), but the isolation lacks and the sounds are distant (they seem tiny as if they're far away). the ex300 and ex500 from sony offered better soundstage and isolation. as for sound, yes,...” --thesurvivor90
“ 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
“ As of 2013, I could only find one pair of these on the internet. It's a shame because from my experience, cheap earbuds are oriented around the muffled bass emphasis and exhausting higher mid ranges. I myself came from the Audio Technica a900x and Bose IE2's which sound darker compared to these $10 earbuds. I love rich vocals and acoustic...” --Nec3
Prepare for an exceptional in-ear listening experience beyond compare and treat your ears to: deep bass, radiant mids, smooth highs, and notable vocal clarity. For the first time, proven Sony® dynamic drivers are paired with cutting-edge Balanced Armature driver technology to deliver rich, dynamic, and detailed audio response.
“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
“could have been a perfect phone if it had better sound stage and a bit more prominent mids , bass lacks pace , but its okay , i will take that , the sound sig is dark warm , and notes are thick , clarity is not a problem can be driven from daps , but a bit more life to highs will do good , amping does help . i like these as much as i hate these , why in this world , why a J cable ? and no cable...” --suman134