I ment if 64a could create a DD with tia implementation as they did for tia high...
So it can be further more deeper rumbler and visceral.
The DDs in the Trio, Fourté and N8 are tia. They all radiate directly into the cavity of the shell.
Tia are the drivers that are at the bore of the IEM, playing the treble as close to your eardrum as possible
Tubeless is another thing, and both the trio and Fourte have a tubeless design, for all their drivers
No, tia refers to all the drivers in the IEM that are tubeless. That's why the Fourté's driver config is listed as 1 tia high, 1 tia mid, etc.