Turns out Performer 8 is 1DD+7BA hybrid. From Hifigo : r/headphones

AFUL Performer8 1DD+7BA Hybrid IEMs — HiFiGo

Earphones, Audio Players, Headphones AMP, DACs & TWS for Audiophiles — HiFiGo

KZ ZAR 1DD+7BA Hybrid Technology Driver Wired Earbuds in Ear Earphones with Silver-Plated Cable in-Ear Monitor Headphones for Audiophile Musician 2 Pin Detachable (No Mic) : Electronics

Reviews by mRaaghava Headphone Reviews and Discussion

AFUL Performer8 1DD+7BA Hybrid IEMs — HiFiGo

Turns out Performer 8 is 1DD+7BA hybrid. From Hifigo : r/headphones

AFUL Performer8 1DD+7BA Hybrid IEMs — HiFiGo

AFUL Performer 8 - Reviews Headphone Reviews and Discussion

Earphones, Audio Players, Headphones AMP, DACs & TWS for Audiophiles — HiFiGo