Transducer Size (Millimeters)50.8
DC Resistance3.6
Resonant Frequency165.78
Half Space Sensitivity85.29
Rated Noise Power25
Test Spectrum Bandwidth150Hz - 20kHz

Transducer Size (Millimeters) 50.8
DC Resistance 3.6 Ω±5.0%
Resonant Frequency 165.78 Hz15%
Half Space Sensitivity @ 2.83V85.29 dB±1.01
Sensitivity @ 1W/1m82.3 dB±1.01
Rated Noise Power (IEC 268-5 18.1)25 W
Test Spectrum Bandwidth 150Hz - 20kHz 12 dB/Oc
Effective Piston Area 13.9 cm2
Moving Mass 1.4 g
Motor Force Factor 2.79 T•m
Voice Coil Inner Diameter 25.73 mm
Gap Height 3 mm
Maximum Linear Excursion 1.7 mm
Ferrofluid Type
Minimum Impedance 4.02 Ω±7.5%
Voice Coil Inductance 0.03 mH
Mechanical Q Factor 3.85
Electrical Q Factor 0.67
Total Q Factor 0.57
Ratio 289.82 fs/Qts
Energy Bandwidth Product ((1/Qes)•fs)
Suspension Compliance 661.1 μm/N
Effective Cone Diameter 4.2 cm
Motor Efficiency Factor 2.2 (T•m2)/Ω
Voice Coil Former Material ASV
Transducer Mass 0.14 Kg
Equivalent Volume 0.18 L

This 2 inch 4 ohm member of the PLS family sets a high standard for compact full range drivers intended for applications such as television soundbars and compact music systems. Design features in this family 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. A black anodized aluminium cone is employed on the driver, along with a black anodized aluminium dust cap coupled directly to the voice coil. Additionally, the cones come equipped with special-designed large roll rubber surrounds, which allow for a dynamic linear response to high excursion input signals.