Originally Posted by Love Music
What music does the CK100Pro's excel at? Does it actually sound awful for things like rock, metal and pop because of the amount of detail and treble presence?
I personally think they excel at fast and detail-heavy music. Club songs. Metal, for sure. But the other posters are right – bad recordings, low bit rates, any type of imperfection can seem glaring. For about 5 months the CK100PRO were my favorite IEMs ever. I listen to a lot of Linkin Park and I couldn't get enough of the speed and crunch. Today, I prefer the W4R because of the less sharp presentation. I came from the GR07 to the W3 to the CK100PRO. The CK100PRO are my favorite of those three IEMs. It's fast. It's detailed. It didn't take too long to fall in love with the sound signature; it reminds me of a lot of the Grado SR225i I had.
What you listen to now will probably have the biggest impact on what you think of the CK100PRO. The W3 were opposites of the CK100PRO – fairly muddy in comparison, slow, boomy (but they had an awesome soundstage). They make the CK100PRO sound extra crisp for me, and like I said, I loved it. I loved it for several weeks after I got the W4R, but over time I've come to prefer the W4R, even though from time to time I miss the detail. Things are somewhat smeared in comparison.
If you're looking for something without any kind of veil whatsoever, something that presents the music for what it is, I highly recommend the CK100PRO. If you are sensitive to treble, then pass. Otherwise, I say go for it! And if you want 'em fast and you live in the states, I'll sell you mine. :P (they don't see any use anymore!)