Yep! CK10 is great for treble heads like me who don't mind the grand 10 Khz peak. It's not for those who need a good quantity of bass or those who prefer midrange / vocal oriented listeners. I'd stick with dynamic IEMs for that kind of taste.
That said, it's technically a great IEM (fast, resolving, clean, neutral, analytical) with amazing front to rear placement. I thought DBA-02 was good with front to rear placement (i.e., far better than RE0) until I heard the CK10. They both (and Brainwavz B2 as well) share the same driver, so there are plenty of things that are common between them.
I had read plenty of posts on head-fi where mvw2 claims CK10's technical superiority over DBA-02. Based on his posts on RE252 and RE262, I expected that CK10 would be far superior than DBA-02. The differences between RE252 and RE262 were easily audible (loud, clean driver, plenty of throw etc., etc.,) and those differences do impact their final presentation to an extent. But, with CK10 and DBA-02, even though he may be technically correct (CK10 > DBA-02: greater dynamic range, filling of bass notes etc., etc.,), during normal listening, they are more closer to each other than they are different. I like CK10 a bit better because of the superior imaging and a slew of other minor factors.
For me, CK10 along with SM3 and FX700 are three IEMs that make listening very relaxing - but for different reasons. I am yet to do a long and proper A/B between CK10 and DBA-02 except for a brief comparison. Based on that brief comparison and how CK10 appeals to me, I'd consider it an 'upgrade', though a minor one from DBA-02. Build quality is another story altogether where CK10 takes the lead by a wide margin. DBA-02 still got it's own strengths and at half the price is more affordable to many. Unfortunately, the OEM factory in China goes out of the way to ensure that despite having two re-brands (DBA-02 and B2), you wait forever to get your hands on them.
Edit: James444 may have saved me from going all out for EX1000, though my curiosity could get the better of me :ashamed: -
http://www.head-fi.org/forum/thread/537011/best-timbre-iem/120#post_7316979