I don't have heard any of the other S-series, but imho the S3 is fairly good. Not overly bassy, but quite warm. I get slightly more bass with the narrow bore tips, which also smooth out some unevenness in the middle treble.
Resolution is fairly good, but not as good as the M3. Rather on R3-level.
Overall, it is a good IEM, but needs some minor refinement.
My reviews should go online this weekend.
All just in my opinion and from what I perceive.
Resolution is fairly good, but not as good as the M3. Rather on R3-level.
Overall, it is a good IEM, but needs some minor refinement.
My reviews should go online this weekend.
All just in my opinion and from what I perceive.