Transducer Size (Millimeters)133.35
DC Resistance5.71
Resonant Frequency107.82
Half Space Sensitivity91.44
Rated Noise Power90
Test Spectrum Bandwidth90Hz-900Hz

Transducer Size (Millimeters)133.35
DC Resistance5.71 Ω±5.0%
Resonant Frequency107.82 Hz15%
Half Space Sensitivity @ 2.83V91.44 dB±1.01
Sensitivity @ 1W/1m91 dB±1.01
Rated Noise Power (IEC 268-5 18.1)90 W
Test Spectrum Bandwidth90Hz-900Hz 12 dB/Oc
Effective Piston Area105.7 cm2
Moving Mass6.5 g
Motor Force Factor6.23 T•m
Voice Coil Inner Diameter30 mm
Gap Height4 mm
Maximum Linear Excursion3.9 mm
Ferrofluid TypeN/A
Minimum Impedance7.18 Ω±7.5%
Voice Coil Inductance0.23 mH
Mechanical Q Factor1.65
Electrical Q Factor0.65
Total Q Factor0.47
Ratio230.87 fs/Qts
Energy Bandwidth Product ((1/Qes)•fs)
Suspension Compliance333.3 μm/N
Effective Cone Diameter11.6 cm
Motor Efficiency Factor6.8 (T•m2)/Ω
Voice Coil Former MaterialKSV
Transducer Mass0.94 Kg
Equivalent Volume5.23 L

This 5.25 inch 8 ohm speaker features a FEA optimized ferrite magnet motor, a 1.2 inch high-temperature voice coil, and a high strength stamped steel frame. The multi-roll surround and spider have been optimized to reduce distortion over the excursion range of this transducer.