Transducer Size (Millimeters)165.1
DC Resistance3.02
Resonant Frequency56.12
Half Space Sensitivity91.08
Rated Noise Power30
Test Spectrum Bandwidth20Hz-20KHz

Transducer Size (Millimeters)165.1
DC Resistance3.02 Ω±5.0%
Resonant Frequency56.12 Hz15%
Half Space Sensitivity @ 2.83V91.08 dB±1.01
Sensitivity @ 1W/1m87.7 dB±1.01
Rated Noise Power (IEC 268-5 18.1)30 W
Test Spectrum Bandwidth20Hz-20KHz 12 dB/Oc
Effective Piston Area138.9 cm2
Moving Mass12.4 g
Motor Force Factor4.23 T•m
Voice Coil Inner Diameter25.86 mm
Gap Height4 mm
Maximum Linear Excursion3.8 mm
Ferrofluid TypeN/A
Minimum Impedance3.67 Ω±7.5%
Voice Coil Inductance0.16 mH
Mechanical Q Factor3.04
Electrical Q Factor0.74
Total Q Factor0.6
Ratio94.32 fs/Qts
Energy Bandwidth Product ((1/Qes)•fs)75.68
Suspension Compliance646.8 μm/N
Effective Cone Diameter13.3 cm
Motor Efficiency Factor5.9 (T•m2)/Ω
Voice Coil Former MaterialASV
Transducer Mass0.7 Kg
Equivalent Volume17.53 L

This 6.5 inch 4 ohm woofer member of the BC product family features a coated paper cone, rubber surround, and powerful voice coil suspended in a ferrite motor. It allows high excursion and features a rigid plastic basket. It is designed to be a high performance transducer.