Transducer Size (Millimeters)50.8
DC Resistance3.44
Resonant Frequency171.46
Half Space Sensitivity84.13
Rated Noise Power7
Test Spectrum Bandwidth150Hz~20KHz

Transducer Size (Millimeters) 50.8
DC Resistance 3.44 Ω±5.0%
Resonant Frequency 171.46 Hz15%
Half Space Sensitivity @ 2.83V84.13 dB±1.01
Sensitivity @ 1W/1m81.6 dB±1.01
Rated Noise Power (IEC 268-5 18.1)7 W
Test Spectrum Bandwidth 150Hz~20KHz 12 dB/Oc
Effective Piston Area 15.2 cm2
Moving Mass 1.5 g
Motor Force Factor 2.49 T•m
Voice Coil Inner Diameter 25.73 mm
Gap Height 2 mm
Maximum Linear Excursion 2.2 mm
Ferrofluid Type
Minimum Impedance 4.42 Ω±7.5%
Voice Coil Inductance 0.03 mH
Mechanical Q Factor 5.1
Electrical Q Factor 0.89
Total Q Factor 0.76
Ratio 225.9 fs/Qts
Energy Bandwidth Product ((1/Qes)•fs)
Suspension Compliance 576.3 μm/N
Effective Cone Diameter 4.4 cm
Motor Efficiency Factor 1.8 (T•m2)/Ω
Voice Coil Former Material ASV
Transducer Mass 0.32 Kg
Equivalent Volume 0.19 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 stiff steel basket with venting under the spider to aid cooling of the motor, a ferrite 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, 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 at high excursion.