Better sounding is a relative term. It's always better how? And in that light both offer strength's a weeknesses.
The DBA-02 does certain things better. It has a smoother frequency response, crisper note, and more speed. Comparatively the Triple.Fi 10 sounds very colored, really thick in note, less crisp and detailed.
The Triple.Fi 10 does certain things better. It has better texture and articulation of note, more decay and low frequency presence, better sound stage, better dynamics. Comparatively the DBA-02 sounds lean and weak, edgy, noisy, and little sense of sound stage.
What's better?
That depends on what you want from the earphone.
I've used a lot of earphones and reviewed many. As part of my attempt, I do try to be relatively unbiased and try to view the sound from a product as a sum of all parts, holistically. A good earphone is one that has few faults, one that may not necessarily excel at anything but at the same time does nothing horrifically bad, a jack of all traits. The DBA-02 is a product I don't really view as a jack of all traits. It is more the one trick pony. This doesn't make it bad. Something like the SE530 or IE8 are the same kind of thing. You have products that are really cool and do certain things awesome. Yet, when you look at every aspect and try to view them as a comprehensive device, they fall short. There is always something blatantly wrong with them, something missing. It's not a matter of coloration, skew, or partial limitation of information. It's worse. It's a complete lack or inability to do some task of sound reproduction. You have to be willing to give up that aspect completely to be willing to accept that earphone. A jack of all traits, you don't have to give up anything. You may not get a specialized sound, but you get a comprehensive one.
Unless a person is looking for a very specific sound, I will always suggest the jack of all trades as better options. To pick a specialized earphone, you have to understand specifically what that earphone excels at AND lacks and that this fits your goals. If you don't have a specific preference or want a broadly capable product, these specialized products are NOT good fits. You want a jack of all trades. You want something that does it all competently. The RE-ZERO is a great option. It's not amazing at any one thing, but it does basically everything well.
The DBA-02 is a great earphone when you want the specialized sound and performance it provides.