Model Number: YD77-30D-8F32PT
Category
Application: Multimedia
Size: 51-77mm
Feature Icons:
Features: Internal magnet, wideband
Specification:
Diameter: Oslash;77mm
Cone material: Paper
Edge: Paper
Nominal power: 2w
Maximum power: 3w
Impedance: 8±15%OΩ
Voice coil: Oslash;13.3mm
Fo: 250±20%Hz 
Response: Fo-15KHz
S. P. L: 82±3dB/1W/1M
Magnet size: Oslash;32*Oslash;18*6 (Ferrite) 
Oslash;32*Oslash;18*6 (Ferrite)

Net weight: 106g