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 Resistance 5.71 Ω±5.0%
Resonant Frequency 107.82 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 Bandwidth 90Hz-900Hz 12 dB/Oc
Effective Piston Area 105.7 cm2
Moving Mass 6.5 g
Motor Force Factor 6.23 T•m
Voice Coil Inner Diameter 30 mm
Gap Height 4 mm
Maximum Linear Excursion 3.9 mm
Ferrofluid Type N/A
Minimum Impedance 7.18 Ω±7.5%
Voice Coil Inductance 0.23 mH
Mechanical Q Factor 1.65
Electrical Q Factor 0.65
Total Q Factor 0.47
Ratio 230.87 fs/Qts
Energy Bandwidth Product ((1/Qes)•fs)
Suspension Compliance 333.3 μm/N
Effective Cone Diameter 11.6 cm
Motor Efficiency Factor 6.8 (T•m2)/Ω
Voice Coil Former Material KSV
Transducer Mass 0.94 Kg
Equivalent Volume 5.23 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.