Product Model: WG78-1640B-PR-20-D (3-inch)
Nominal Impedance: 6Ω
Power (RMS): 20W
Maximum Power (Max): 40W
Voice Coil Diameter: 25mm
Magnetic Circuit: 70*15
Resonant Frequency Fo (Fs): 141Hz
Sensitivity (SPLo): 83dB
Equivalent Volume (Vas): 488.156
Mechanical Q-Factor (Qms): 4.849
Electrical Q-Factor (Qes): 0.871
Total Q-Factor (Qts): 0.739
Mounting Height: 46mm±0.5
Total Weight: 506g
Cone Material: Bronze-colored cone