Transducer Size (Millimeters)133.35
DC Resistance5.9
Resonant Frequency85
Half Space Sensitivity87.74
Rated Noise Power30
Test Spectrum Bandwidth20Hz-5KHz

Transducer Size (Millimeters) 133.35
DC Resistance 5.9 Ω±5.0%
Resonant Frequency 85 Hz15%
Half Space Sensitivity @ 2.83V87.74 dB±1.01
Sensitivity @ 1W/1m87.5 dB±1.01
Rated Noise Power (IEC 268-5 18.1)30 W
Test Spectrum Bandwidth 20Hz-5KHz 12 dB/Oc
Effective Piston Area 89.9 cm2
Moving Mass 8.9 g
Motor Force Factor 6.32 T•m
Voice Coil Inner Diameter 25.73 mm
Gap Height 6 mm
Maximum Linear Excursion 3.5 mm
Ferrofluid Type
Minimum Impedance 7.51 Ω±7.5%
Voice Coil Inductance 0.26 mH
Mechanical Q Factor 3.01
Electrical Q Factor 0.7
Total Q Factor 0.57
Ratio 149.38 fs/Qts
Energy Bandwidth Product ((1/Qes)•fs)
Suspension Compliance 394.5 μm/N
Effective Cone Diameter 10.7 cm
Motor Efficiency Factor 6.8 (T•m2)/Ω
Voice Coil Former Material ASV
Transducer Mass 0.96 Kg
Equivalent Volume 4.48 L

This 5.25 inch 8 ohm driver is a member of the Heritage family.