Transducer Size (Millimeters)50.8
DC Resistance3.6
Resonant Frequency175.63
Half Space Sensitivity84.99
Rated Noise Power25
Test Spectrum Bandwidth150Hz - 20kHz

Transducer Size (Millimeters) 50.8
DC Resistance 3.6 Ω±5.0%
Resonant Frequency 175.63 Hz15%
Half Space Sensitivity @ 2.83V84.99 dB±1.01
Sensitivity @ 1W/1m82 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 1.6 g
Motor Force Factor 2.83 T•m
Voice Coil Inner Diameter 25.73 mm
Gap Height 3 mm
Maximum Linear Excursion 1.7 mm
Ferrofluid Type
Minimum Impedance 3.99 Ω±7.5%
Voice Coil Inductance 0.03 mH
Mechanical Q Factor 5.63
Electrical Q Factor 0.81
Total Q Factor 0.71
Ratio 247.37 fs/Qts
Energy Bandwidth Product ((1/Qes)•fs)
Suspension Compliance 502.3 μm/N
Effective Cone Diameter 4.4 cm
Motor Efficiency Factor 2.2 (T•m2)/Ω
Voice Coil Former Material ASV
Transducer Mass 0.14 Kg
Equivalent Volume 0.16 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.