Transducer Size (Millimeters)20
DC Resistance3.62
Resonant Frequency398.7
Half Space Sensitivity76.09
Rated Noise Power1
Test Spectrum Bandwidth400-20K

Transducer Size (Millimeters)20
DC Resistance3.62 Ω±5.0%
Resonant Frequency398.7 Hz15%
Half Space Sensitivity @ 2.83V76.09 dB±1.01
Sensitivity @ 1W/1m73.5 dB±1.01
Rated Noise Power (IEC 268-5 18.1)1 W
Test Spectrum Bandwidth400-20K 12 dB/Oc
Effective Piston Area2.2 cm2
Moving Mass0.1 g
Motor Force Factor0.5 T•m
Voice Coil Inner Diameter12 mm
Gap Height0.8 mm
Maximum Linear Excursion0.3 mm
Ferrofluid Type
Minimum Impedance4.46 Ω±7.5%
Voice Coil Inductance0.02 mH
Mechanical Q Factor1.89
Electrical Q Factor4.49
Total Q Factor1.33
Ratio300 fs/Qts
Energy Bandwidth Product ((1/Qes)•fs)
Suspension Compliance1294 μm/N
Effective Cone Diameter1.66 cm
Motor Efficiency Factor0.1 (T•m2)/Ω
Voice Coil Former MaterialKSV
Transducer Mass0 Kg
Equivalent Volume0.01 L

This 20 mm 4 ohm compact Premium Micro Transducer is designed for computer, television array, and similar applications. It features a neodymium-iron-boron magnet, a light aluminium cone, and a high-temperature polycarbonate frame. The PMT family`s transducers feature low resonant frequencies and a full range bandwidth.