Transducer Size (Millimeters)133.35
DC Resistance3.36
Resonant Frequency57.31
Half Space Sensitivity89.2
Rated Noise Power40
Test Spectrum Bandwidth20HZ-3KHZ

Transducer Size (Millimeters) 133.35
DC Resistance 3.36 Ω±5.0%
Resonant Frequency 57.31 Hz15%
Half Space Sensitivity @ 2.83V89.2 dB±1.01
Sensitivity @ 1W/1m85.8 dB±1.01
Rated Noise Power (IEC 268-5 18.1)40 W
Test Spectrum Bandwidth 20HZ-3KHZ 12 dB/Oc
Effective Piston Area 86.6 cm2
Moving Mass 10.8 g
Motor Force Factor 4.76 T•m
Voice Coil Inner Diameter 25.73 mm
Gap Height 6 mm
Maximum Linear Excursion 3.4 mm
Ferrofluid Type
Minimum Impedance 3.68 Ω±7.5%
Voice Coil Inductance 0.19 mH
Mechanical Q Factor 3.27
Electrical Q Factor 0.58
Total Q Factor 0.49
Ratio 116.49 fs/Qts
Energy Bandwidth Product ((1/Qes)•fs)
Suspension Compliance 712.4 μm/N
Effective Cone Diameter 10.5 cm
Motor Efficiency Factor 6.7 (T•m2)/Ω
Voice Coil Former Material ASV
Transducer Mass 0.72 Kg
Equivalent Volume 7.5 L

The SDS compact subwoofer family offers low resonant frequency performance, ideally suited for compact sealed enclosures. This 5.25 inch 4 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.