Transducer Size (Millimeters)304.8
DC Resistance2.78
Resonant Frequency19.94
Half Space Sensitivity88.56
Rated Noise Power150
Test Spectrum Bandwidth25Hz - 1kHz

Transducer Size (Millimeters)304.8
DC Resistance2.78 Ω±5.0%
Resonant Frequency19.94 Hz15%
Half Space Sensitivity @ 2.83V88.56 dB±1.01
Sensitivity @ 1W/1m85 dB±1.01
Rated Noise Power (IEC 268-5 18.1)150 W
Test Spectrum Bandwidth25Hz - 1kHz 12 dB/Oc
Effective Piston Area506.7 cm2
Moving Mass113.9 g
Motor Force Factor11.12 T•m
Voice Coil Inner Diameter51.32 mm
Gap Height8 mm
Maximum Linear Excursion9 mm
Ferrofluid Type
Minimum Impedance3.55 Ω±7.5%
Voice Coil Inductance0.38 mH
Mechanical Q Factor15.6
Electrical Q Factor0.32
Total Q Factor0.31
Ratio63.51 fs/Qts
Energy Bandwidth Product ((1/Qes)•fs)
Suspension Compliance559.2 μm/N
Effective Cone Diameter25.4 cm
Motor Efficiency Factor44.6 (T•m2)/Ω
Voice Coil Former MaterialTiSV
Transducer Mass2.68 Kg
Equivalent Volume201.66 L

This 12 inch 4 ohm member of the NE family has leading-edge transducer technology packaged in a cutting edge, stylistic design. The subwoofers 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 NdFeB motor, so as to improve power handling capacity. An additional heat sink is available to provide extra thermal protection if needed. The cone and dust cap are constructed of natural wood fiber material with proprietary coating formulas & processes, so as to yield high clarity products. The cone designs also utilize pentacone technology for improved frequency response. 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. Rounding out the design is a 4-way terminal block connector, for ease of electrical connection.