Sound pressure level: 93±3dB

Response frequency: F0: 550 ±20%Hz

Input power (nom./max.): 1.0W / 1.5W

Audible noise: Must be free audible noise

Distortion: Less than 10% at 1KHz 0.1W/10cm

Operating temperature: -20℃ To +60℃

DC resistance: 8±15%Ω