Product Model: WG78-1638A-PR-20-D (3-inch)
Nominal Impedance: 4Ω
Power (RMS): 20W
Maximum Power (Max): 40W
Voice Coil Diameter: 20mm
Magnetic Circuit: 70*15
Resonant Frequency Fo (Fs): 96Hz
Sensitivity (SPLo): 82dB
Equivalent Volume (Vas): 1.111
Mechanical Q-Factor (Qms): 2.745
Electrical Q-Factor (Qes): 0.823
Total Q-Factor (Qts): 0.633
Mounting Height: 47mm±0.5
Total Weight: 541g
Cone Material: Black Crystal Diamond Pattern