I have ordered 2 pairs. 1 for myself and another for my mom...because the bear is really cute. I have heard pretty much about TFZ and wanted to try them out. (Bcos I'm a KZ fan wanting to see if TFZ does a better job as some claims to). Unfortunately, I totally forgot about the golden week break in China which would delay my parcel for a week? (Should arrive by the 12th). I was really looking forward to it and coincidentally I saw a dealer selling this yesterday while I was shopping and decided to drop in for a demo.
Pretty much as people above whom tested them, the mids do sound really thin. I guess I could say it felt like having a conversation with another person standing say half a metre away from you with music playing at the background? Don't get me wrong, I'm not trying to say that you barely hear anything in the "vocal" region, what I'm trying to say is that it is less pronounced. Which in my opinion is a downside. In fact, the vocals region is where the ears are sensitive to, that might also explain why it feels thinner because our brain might actually be expecting more "stimulus" in the region. With that being said, I didn't try using EQ to compensate the mids so I can't say much as of how it would affect as of now, but will definitely try EQing when my set arrives. The clarity of the vocals is pretty good, not harsh (usually allow happens in the higher vocal frequencies @8-10k? This region in most instances comes from female vocals) and good sibilance. The bass is not as strong as the KZs in my opinion (at least in comparison to ZS10pro), could be an effect from being drier and less punchy. The treble, in general, is nice, nothing spectacular.
The frequency response chart released by TFZ suggested some emphasis in the female vocals with the remaining spectrum to be generally flat, definitely not what I hear. In fact, I would say it is in fact generally falt throughout the whole spectrum. I think this earpiece is more like a "reference" earpiece where its' flat nature reflects the songs accurately as it was composed. Most of the earpieces in the market is somewhat "coloured" to give better audio experience in some genres of songs. So depending on if you are a hard-core audiophile looking at accuracy or hobbyist wanting to have better overall experience, you might like/dislike this.
Because this is just a short demo, I didn't try out some tricks that can improve audio experiences. And judging that it is newly launched and is just a demo, my guess would be that it hadn't been "burned in" or at least operated long enough to reflect its' true capability. I'm not here to debate about the need of the burn-in process, but from my own experience, burning in do make an impact on the DD especially the bass region and I would say hardly or probably not at all in affecting the BAs.
If you ask me if this is worth it base on first impression, yes and no... In comparison to KS 10pro, I would say no. In comparison to ZSN & ZSN pro, probably yes because of the less harsh nature in the vocals.
I will do a proper review maybe after using it for 3 days? One thing to take note of is that I tested the s2 pro with a flat tfz cable instead of the supposedly new upgraded silver-plated copper cable. Not sure how much it affects the experience.
Alright its been awhile somebody post an opinion about what they listen, keep on posting and keep sending opinion. cheers!
Not to mention, kudos to the reviewers as well