Transducer Size (Millimeters)76.2
DC Resistance3.67
Resonant Frequency102.81
Half Space Sensitivity86.06
Rated Noise Power25
Test Spectrum Bandwidth100Hz - 20kHz

Transducer Size (Millimeters) 76.2
DC Resistance 3.67 Ω±5.0%
Resonant Frequency 102.81 Hz15%
Half Space Sensitivity @ 2.83V86.06 dB±1.01
Sensitivity @ 1W/1m83.2 dB±1.01
Rated Noise Power (IEC 268-5 18.1)25 W
Test Spectrum Bandwidth 100Hz - 20kHz 12 dB/Oc
Effective Piston Area 28.6 cm2
Moving Mass 2.5 g
Motor Force Factor 2.76 T•m
Voice Coil Inner Diameter 25.73 mm
Gap Height 4 mm
Maximum Linear Excursion 1.8 mm
Ferrofluid Type
Minimum Impedance 4.12 Ω±7.5%
Voice Coil Inductance 0.06 mH
Mechanical Q Factor 9.88
Electrical Q Factor 0.78
Total Q Factor 0.72
Ratio 142.59 fs/Qts
Energy Bandwidth Product ((1/Qes)•fs)
Suspension Compliance 961.7 μm/N
Effective Cone Diameter 6.04 cm
Motor Efficiency Factor 2.1 (T•m2)/Ω
Voice Coil Former Material TiSV
Transducer Mass 0.24 Kg
Equivalent Volume 1.11 L

This 3 inch 4 ohm member of the NE family has leading-edge transducer technology packaged in a cutting edge, stylistic design. The full-range drivers in this family feature an innovative cast aluminium basket design which minimizes acoustic reflections inside the driver, through large basket windows and sculpted basket spokes. The basket also is designed to act as a highly coupled heat sink to the Neodymium-Iron-Boron magnet (NdFeB) motor, so as to improve power handling capacity. The cone is aluminium, with a butyl rubber surround designed through finite element analysis for linearity of performance. The voice coil bobbin is titanium, for improved performance. The FEA-designed motor features copper caps to minimize inductance and extend performance to high frequencies.