I see a lot CIEM manufacturers showcasing their new products with number of drivers inside
JH Roxanne with 12 drivers
Noble Audio Kaiser with 10 drivers
JH 16 PRO with 8 drivers
Unique Melody with 6 drivers
Then there is
Westone ES5 sticking with 5 drivers
Sensaphonics 3MAX with 3 drivers
None of them are each cheap , all of them cost >$950 , all of them are top tier products with their own characteristics,
so my question is
1. what difference do the number of drivers make ?
2. Do they make the CIEM better ? If yes , why are companies like Westone & Sensaphonics sticking to jst 5/3 respectively ?