The HF5 - the only Etys I know - are much superior over the Tinaudio T2. While one can argue about particularities such "bass decay" etc. etc., their overall homogeneity and tuning are just superb...incredible voice rendering, tight bass...When using the Etys, I hadn't gotten the desire to use any other earphones. I may have found the perfect earphones after more than 60 in my drawer...
Somebody wrote about the KZ ES4:
"...good for $20 but nothing groundbreaking..."
In analogy, one could say about the HF5: "Superb value for $75 and a sonic benchmark".
So, what is missing compared to the >$1000 iems? The latter have better resolution, a bigger stage, and less distortion. But will they be more fun? These HF5 are darn good sounding.
I conclude:
1. An experienced company like Etymotic adds a lot of scientific know-how to their earphones which is reflected by tuning and homogeneity of sound.
2. You won't get any unpleasant surprises from an established and respected company like that (see Meizu cable or TRN V60 disaster).
3. All Etymotic models feature a single BA driver which produce better images than cheap multi-drivers: less is more!
4. If you are still looking for your sub-$100 killer earphone, it is American (albeit made in China), sorry!
P.S. It is claimed that
"...Etymotic's hf5 lists for $xx, the hf2 for $yy. Both offer what Killion claims is virtually identical performance to the ER-4 and to one another—..."
Read more at
https://www.stereophile.com/budgetc...ear_headphones/index.html#ylpFd64gJyI1xt79.99