Model Number: YD57-1-8F32M
Category
Application: Fire/Safety
Size: 51-77mm
Feature Icons:
Features: Narrowband, water proof
Specification:
Diameter: Oslash;57mm
Cone material: Mylar
Edge: Mylar
Nominal power: 0.25w
Maximum power: 0.5w
Impedance: 8±15%OΩ
Voice coil: Oslash;13.3mm
Fo: 550±20%Hz
Response: Fo-4.5KHz
S. P. L: 83±3dB/W/M
Magnet size: Oslash;32*Oslash;18*6(Ferrite) 

Net weight: 51g