Transducer Size (Millimeters)63.5
DC Resistance1.5
Resonant Frequency118.2
Half Space Sensitivity87.75
Rated Noise Power15
Test Spectrum Bandwidth100Hz-20KHz

Transducer Size (Millimeters) 63.5
DC Resistance 1.5 Ω±5.0%
Resonant Frequency 118.2 Hz15%
Half Space Sensitivity @ 2.83V87.75 dB±1.01
Sensitivity @ 1W/1m81.3 dB±1.01
Rated Noise Power (IEC 268-5 18.1)15 W
Test Spectrum Bandwidth 100Hz-20KHz 12 dB/Oc
Effective Piston Area 21.2 cm2
Moving Mass 2 g
Motor Force Factor 1.4 T•m
Voice Coil Inner Diameter 25.73 mm
Gap Height 3 mm
Maximum Linear Excursion 2.1 mm
Ferrofluid Type
Minimum Impedance 1.83 Ω±7.5%
Voice Coil Inductance 0.01 mH
Mechanical Q Factor 6.27
Electrical Q Factor 1.16
Total Q Factor 0.98
Ratio 120.73 fs/Qts
Energy Bandwidth Product ((1/Qes)•fs)
Suspension Compliance 888 μm/N
Effective Cone Diameter 5.2 cm
Motor Efficiency Factor 1.3 (T•m2)/Ω
Voice Coil Former Material ASV
Transducer Mass 1.22 Kg
Equivalent Volume 0.56 L

This 2.5 inch 2 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 ferrite 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 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.