Transducer Size (Millimeters)304.8
DC Resistance5.3
Resonant Frequency52
Half Space Sensitivity97.35
Rated Noise Power600
Test Spectrum Bandwidth60-600Hz

Transducer Size (Millimeters)304.8
DC Resistance5.3 Ω±5.0%
Resonant Frequency52 Hz15%
Half Space Sensitivity @ 2.83V97.35 dB±1.01
Sensitivity @ 1W/1m96.4 dB±1.01
Rated Noise Power (IEC 268-5 18.1)600 W
Test Spectrum Bandwidth60-600Hz 12 dB/Oc
Effective Piston Area539.1 cm2
Moving Mass59 g
Motor Force Factor18.8 T•m
Voice Coil Inner Diameter75.75 mm
Gap Height10 mm
Maximum Linear Excursion7.1 mm
Ferrofluid Type
Minimum Impedance6.44 Ω±7.5%
Voice Coil Inductance0.73 mH
Mechanical Q Factor4.1
Electrical Q Factor0.32
Total Q Factor0.29
Ratio179.31 fs/Qts
Energy Bandwidth Product ((1/Qes)•fs)
Suspension Compliance161 μm/N
Effective Cone Diameter26.2 cm
Motor Efficiency Factor66.7 (T•m2)/Ω
Voice Coil Former MaterialTGL
Transducer Mass4.4 Kg
Equivalent Volume66 L

This 12 inch 8 ohm speaker features a FEA optimized Neo magnet motor, a 3in high-temperature aluminum wire voice coil, and a high strength cast aluminum frame, specially designed motor cooling system incorporate with the cast aluminum heatsink can dramatically increase the power handling and reduce the power compression, the multi-roll surround and spider have been optimized to reduce distortion over the excursion range of this transducer.