The selected comparisons for the ZS10 Pro are below:
vs. KZ ZS10: I compared them many times in the review but let me compare once again shortly. The ZS10 pro has a slightly improved midbass performance and it once again has a focused subbass with good depth and rumble. However the bass has better control and resolution.
It has a better transparency in mids but with the same energy, clarity and crispness. Treble is the area that it gives a different presentation, as it sounds much more energetic and emphasized in that area. So overall the Pro is a noticeable improvement in terms of technicalities, but with a different approach in terms of treble. To me, there’s no more a point to get the original model, except the larger sound stage that it provides.
vs KZ AS10: I liked the AS10 so much that I’ve put it in our Best Universal IEM Recommendations list. It has a better midbass body, a warmer sound together with better timbre. So the ZS10 Pro did not change my opinion about the AS10 being the better IEM in terms of instrumental presentation. The ZS10 Pro definitely gives you more fun, but the AS10 sounds truer in my opinion.
The sound stage is slightly wider with the AS10 and that’s a another reason to choose it over the ZS10 Pro. The AS10 also fits and isolates better. The ZS10 Pro has a better build with its new faceplate, but I don’t think that’s a huge deal.
vs. Shozy Hibiki Mk2: The ZS10 Pro has more subbass rumble, and the Hibiki has a better midbass response. So I think it’s a tie overall, but I still think the Hibiki MK2 has a more ideal quantity. In terms of mids, the Hibiki gives a more realistic tone to me, but the ZS10 Pro has more intimacy in there. So it’s totally a matter of choice.
Treble-wise I think the ZS10 Pro is better in terms of articulation and transparency, as well as detail pickup. However it’s more aggressive in treble and that can make you exhausted depending on the source. The Hibiki however has a better refinement in there.
The KZ ZS10 Pro is a nice improvement over the original ZS10. The sound is more resolving, the midbass body is better, the treble has more articulation and emphasis, and it sounds more transparent. However the clear thing is they sound very different. If you like a more relaxed approach you can still go with the ZS10. But from a technical standpoint, the Pro model is better in almost every way.
Yet, I still think the AS10 is the best KZ unit among the ones that I’ve tested. So it remains in our Best Universal IEMs list. The ZS10 Pro is a nice performer for the price. Especially when you think that they did not change the base price too much, it certainly deserves a praise. Not to mention the improvement in build quality. The appearance in particular is drastically improved as well.
So yes, it’s simply a better ZS10 in every way. But I would still go with either Hibiki MK2 or the AS10.