IMO the T3 is worst than the T2. Much worse. Very piercing treble unless used with foams and a warm source. Detailed? Yes, but you also gain a headache for free.
The EMI C880, EZ Audio D4 and Sony MH-755 eat the Tin Hifi T3 for breakfast at a fraction of the price.
My biggest 2019 disillusion. Waste of money really.
I own most of these. My 2 cents.
T3 for me was treble hot at first, then i played them for about 2 weeks on my AVR at moderate volume and that settled them down. I don't even like the words burn in but I've most definitely noticed improvements from burn in, not on my head burn in, but after being played for extended time on a source for the T3 and DM6 both of which hurt out of the package. And yes, my first T3 impressions were, hot damn this treble is gonna make my brain explode. These now are NOT piercing. I literally stuck them on an extra AVR on a radio station for weeks. Figured what do i have to lose.
I don't own the T2 but demo'd a friend's and I thought they were bass light and thin sounding. I did the micropore tape mod to the inner vent and the bass improved nicely. From memory, I can't recall if the modded T2 are better or worse than the T3. I'll be able to compare in a couple weeks. I'm looking forward to this comparison to see if I got ripped.
The T3 for the price may be over hyped. I have mixed feelings on them. I think my expectations were just a little too built up with the massdrop and community hype. They are actually a nice iem, maybe a tad warmer than neutral, maybe a tad brighter depending on how many hours they have on them. For great detail and guitar crunch rock, I turn to my DM6, for hip hop and EDM, I turn to my DMG and if I need something in between, there's the T3. They don't seem to best those IEMs in anything but they aren't offensive and if I didn't have a desire for deeper, harder bass with more air or guitar crunching detail, I'd be happy in ignorance. Yes, those IEMs cost more and its unfair but life ain't fair and I'm stretching too see them slug it out with more expensive, arguably high performing IEMs. The T3 are good all rounders to my ears.
One thing I've recently discovered about the T3 is that when i wear them over my ears, I need to add a little more cable slack and push the IEM bodies down toward my neck after insertion. I don't know why, but this improves everything and makes them more enjoyable given the present company. Bass, clarity and soundstage improves. I don't have this issue with other IEMs. I don't think they are a bust by any means but i can see how some people might have this vanilla view of them.
The EZ Audio D4 is a steal after the micropore tape mod on the inner vent. Before this, they were unimpressive, after a little resistance on the vent, they gained nice subbass and bass punch with clarity and good highs. They were my steal of 2018 as i bought about 10 pairs on singles day, then modded them with family and rolled tips just to give them a little introduction to the hobby. I should be condemned for this, it's like pushing opiates on kids. Most people were amazed at the changes from both mods. I still have a couple pair of D4 for back up.
I bought a couple MH-755 and all I remember is how warm they are. I need to revisit these. They reminded my of a Sennheiser type sound but I probably need to spend more time with them. I think some other IEMs stepped into my life around that time so they didn't get too fair of a demo. Now that i recall, that short off center cable threw me off. I need to use them with my ES100 or do a cable mod for better enjoyment and more practical use. They definitely have potential, it's just there's lower lying fruit about.
So now, I'm currently eyeballing the ****, Crescent, KZN Pro and E2000. Do I really need these?
Edit: Forgot to mention that I'm using JVC Spiral Dots and Sony Hybrid tips primarily. The DM6 uses a NiceHCK 16 core pure copper cable. Everything else I believe is stock.