Hi everyone !
I have had the chance to try out the 64audio Tia Trio for the past 2-3 weeks and this is all thanks to the HEADPHONE Community Preview Program. I highly encourage people to participate and share their thoughts !
I guess I should begin with a few disclaimers. Firstly, the music I tend to listen to revolves a lot around metal, rock, instrumental and soundtracks. Here is a non-exhaustive list of the bands I used to gather my thoughts : Dream Theater, Haken, Jinjer, Tool, Gojira, Trivium, Devin Townsend Project, Killswitch Engage, Lamb of God, Porcupine Tree, Breaking Benjamin, Chevelle, Soen, Animals as Leaders, Hans Zimmer, Final Fantasy OST, Hollow Knight OST and Ori & the Blind Forest OST. Secondly, my library consists of my own 16bit 44.1 KHz FLAC files and I also use streaming services like Tidal Masters and Spotify (on the very high setting). Thirdly, I used the iFi iDSD Micro Black Label and the Sony WM1A as my sources. They are on the warmer side, which I think is a good match with this IEM. Eartips wise, I used my favorites, the Azla Sedna shorts.
To start off my small review, I’ll go with comfort. I have tried or owned a lot of different IEMs (from Sony, QDC, VisionEars, Campfire Audio, FiR Audio, Empire Ears, Shure, etc.) and I think the Tia Trio is amongst the best out there. The Apex technology with 64audio IEMs is amazing and I don’t have any pressure buildup whatsoever, which is an issue I have with almost every other brand. As far as size goes, it is on the bigger side, so it might be an issue if your ears are smaller than average. Fortunately, the nozzle is long enough, so it should help with deep insertion and stuff like that.
As far as packaging goes, the presentation is not exceptional by any mean, but it’s alright. There’s a protective case that you can use to protect / store the IEMs, a couple eartips and the stock cable. Speaking of cable, it’s one of the worst out there. It does not feel really good and I would strongly recommend to buy an aftermarket one (a cheap YinYoo one is good enough) if you plan on keeping the Tia Trio for a long period. I personally use the Dunu DUW02 and it’s nice to be able to swap the connector at will !
Anyway, it’s time to talk a little about the sound. Starting with the low frequencies, I’d say it’s one of the highlights. It has typical DD texture and the level itself is fairly boosted, which makes it enjoyable for genres like hip hop, EDM and things like that. Sub bass is well represented (nice extension), but I feel like mid bass should be a little bit more pronounced, especially for a v-shaped IEM.
Continuing with the mid frequencies, I’d say it’s definitely the weak part of this IEM. They sound really far back, which make the Tia Trio hard to enjoy overall with the vast majority of genres I listen to (rock and metal mostly). The amount of detail is fairly good, but I can’t say it’s exceptional, especially for the price. It’s not ideal for someone that wants to hear every detail in their music (look at the KSE1200, Anole VX or U12t if that’s what you want !).
Treble wise, the Tia Trio reaches a level that makes me a bit uncomfortable. Some peaks in the upper frequencies might be the reason for that, but I am not too sure on where exactly in the frequency graph. All in all, it makes for a very intense experience. If you tend to listen to music at high volumes, get ready! I have not tried to EQ this IEM, but it could be an option if you’re sensitive to that region like I am.
Finally, I would say that soundstage and imaging are quite impressive. I get the feeling that music surrounds me (3D sound) and isn’t “direct”. Imaging is also good, in both depth and width.
In conclusion, would I recommend the 64audio Tia Trio for the price? I’m not too sure. It does not pair really well with my genres (rock and metal) and I prefer the U12t by a decent margin, but I would still give it a try. With the current 30% off sale, it sits at a more reasonable price. In the same price range, I would also consider the Campfire Audio Solaris, which is more balanced and full sounding to me. You don’t quite get the same bass presence (the Solaris is a bit more tame in that region), but you get more detail and a more realistic presentation (instruments and male vocals) overall.
Anyway, that about wraps up my small review, hope you enjoyed the read and feel free to ask questions below if you have any 
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