Transducer Size (Millimeters)165.1
DC Resistance6.05
Resonant Frequency44.75
Half Space Sensitivity89.46
Rated Noise Power60
Test Spectrum Bandwidth40Hz - 4kHz

Transducer Size (Millimeters) 165.1
DC Resistance 6.05 Ω±5.0%
Resonant Frequency 44.75 Hz15%
Half Space Sensitivity @ 2.83V89.46 dB±1.01
Sensitivity @ 1W/1m88.5 dB±1.01
Rated Noise Power (IEC 268-5 18.1)60 W
Test Spectrum Bandwidth 40Hz - 4kHz 12 dB/Oc
Effective Piston Area 141 cm2
Moving Mass 11.5 g
Motor Force Factor 5.98 T•m
Voice Coil Inner Diameter 25.73 mm
Gap Height 6 mm
Maximum Linear Excursion 3.5 mm
Ferrofluid Type
Minimum Impedance 6.44 Ω±7.5%
Voice Coil Inductance 0.38 mH
Mechanical Q Factor 2.74
Electrical Q Factor 0.55
Total Q Factor 0.46
Ratio 98.35 fs/Qts
Energy Bandwidth Product ((1/Qes)•fs)
Suspension Compliance 1101.4 μm/N
Effective Cone Diameter 13.4 cm
Motor Efficiency Factor 5.9 (T•m2)/Ω
Voice Coil Former Material ASV
Transducer Mass 0.84 Kg
Equivalent Volume 30.77 L

The SDS compact woofer family offers low resonant frequency performance, ideally suited for compact sealed enclosures. This 6.5 inch 8 ohm member of the SDS family offer a coated paper cone with rubber surround, a high power voice coil suspended in a ferrite magnet motor, and a narrow-profile steel basket, shaped to fit into narrow cabinets. Based on SDS-P830657 added a rear gasket.