Transducer Size (Millimeters)304.8
DC Resistance3.82
Resonant Frequency36.23
Half Space Sensitivity86.63
Rated Noise Power250
Test Spectrum Bandwidth40Hz-200Hz

Transducer Size (Millimeters)304.8
DC Resistance3.82 Ω±5.0%
Resonant Frequency36.23 Hz15%
Half Space Sensitivity @ 2.83V86.63 dB±1.01
Sensitivity @ 1W/1m85.4 dB±1.01
Rated Noise Power (IEC 268-5 18.1)250 W
Test Spectrum Bandwidth40Hz-200Hz 12 dB/Oc
Effective Piston Area510.7 cm2
Moving Mass150 g
Motor Force Factor12.53 T•m
Voice Coil Inner Diameter38.75 mm
Gap Height8 mm
Maximum Linear Excursion8.3 mm
Ferrofluid Type
Minimum Impedance6.09 Ω±7.5%
Voice Coil Inductance1.61 mH
Mechanical Q Factor4.78
Electrical Q Factor0.7
Total Q Factor0.61
Ratio59.19 fs/Qts
Energy Bandwidth Product ((1/Qes)•fs)
Suspension Compliance152.4 μm/N
Effective Cone Diameter25.5 cm
Motor Efficiency Factor41.1 (T•m2)/Ω
Voice Coil Former MaterialASV
Transducer Mass3.56 Kg
Equivalent Volume55.83 L

This 12inch 4ohm subwoofer, a member of the new SBS product family, with a coated paper cone, with NBR surround and steel basket, the motor features a double ferrite magnet motor. The product offers high power handling capacity, geared towards operation in smaller sealed powered systems.