Transducer Size (Millimeters)50.8
DC Resistance3.18
Resonant Frequency139.86
Half Space Sensitivity86.01
Rated Noise Power25
Test Spectrum Bandwidth150Hz-20KHz

Transducer Size (Millimeters) 50.8
DC Resistance 3.18 Ω±5.0%
Resonant Frequency 139.86 Hz15%
Half Space Sensitivity @ 2.83V86.01 dB±1.01
Sensitivity @ 1W/1m83.2 dB±1.01
Rated Noise Power (IEC 268-5 18.1)25 W
Test Spectrum Bandwidth 150Hz-20KHz 12 dB/Oc
Effective Piston Area 15.2 cm2
Moving Mass 1.5 g
Motor Force Factor 2.55 T•m
Voice Coil Inner Diameter 25.73 mm
Gap Height 3 mm
Maximum Linear Excursion 1 mm
Ferrofluid Type N/A
Minimum Impedance 4.19 Ω±7.5%
Voice Coil Inductance 0.03 mH
Mechanical Q Factor 4.46
Electrical Q Factor 0.63
Total Q Factor 0.55
Ratio 254.76 fs/Qts
Energy Bandwidth Product ((1/Qes)•fs)
Suspension Compliance 884.8 μm/N
Effective Cone Diameter 4.4 cm
Motor Efficiency Factor 2.1 (T•m2)/Ω
Voice Coil Former Material ASV
Transducer Mass 0.14 Kg
Equivalent Volume 0.29 L

This 2 inch 4 ohm full-range driver is intended for applications such as television soundbars and compact music systems. Design features include a damped plastic basket with venting under the spider to aid cooling of the motor, a neodymium magnet motor with copper cap to lower coil inductance, providing low distortion at low frequencies and extended high frequency response. An aluminium cone is employed on the driver, along with an aluminium dust cap coupled directly to the voice coil. Additionally, the cones come equipped with large roll rubber surrounds, which allow for a dynamic linear response under high excursion.