I don't think they're even anywhere near in the same league. Just yesterday i had the pleasure of listening to the answer out of the resonessance invicta which, if you didn't know before this, is actually the reference dac/amp used in tuning the ditas. I also listened to the stax sr-009 out of the same invicta dac (the reference upon which the ditas were tuned) and you would be amazed at how similar they sound if you ever got the chance to try them out. Out of my portable source the ditas always sounded like they had an elevated bass, and the stax have always sounded slightly on the light side when ran through my x5 dac, but when both were properly fed with the invictas, they just came so close, almost identical tonally.
I've read reviews mentioning that the ditas dont need a great source/amplification to sound great which is true, but they also mentioned that it doesn't scale up as well as other gear, and I would like to respectfully disagree. Having heard them out of the invictas, they are simply stunning. I tried the k10s as well, and i love them too, but to be honest, the ditas are easily on the same level as them.
Honestly, I simply cannot agree with this. I have both the k10 and the truth and while the truth does scale up well, it is definitely not on the same level as the k10. I listen to both of them on both portable and my home rigs and I have to say that the k10 is amazing in the way it can both scale up and down. The ditas on the other hand can scale up a lot but are definitely not on the same level.