AME Gaia 4EST 6BA 1DD earphone
SpecificationDriver: 4EST 6BA from Sonion and 1 Graphene Dynamic Driver, a total of 11 drivers.
Frequency Response : 20hz ~ 70Khz
Sensitivity : 100dB(1Khz)
Impedance : 14Ω ⓐ 1Khz (DCR 87Ω )
Crossover network: 4Way Crossover network
https://www.ame-custom.com/Premium-earphones/view/4369481