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 Resistance3.36 Ω±5.0%
Resonant Frequency57.31 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 Bandwidth20HZ-3KHZ 12 dB/Oc
Effective Piston Area86.6 cm2
Moving Mass10.8 g
Motor Force Factor4.76 T•m
Voice Coil Inner Diameter25.73 mm
Gap Height6 mm
Maximum Linear Excursion3.4 mm
Ferrofluid Type
Minimum Impedance3.68 Ω±7.5%
Voice Coil Inductance0.19 mH
Mechanical Q Factor3.27
Electrical Q Factor0.58
Total Q Factor0.49
Ratio116.49 fs/Qts
Energy Bandwidth Product ((1/Qes)•fs)
Suspension Compliance712.4 μm/N
Effective Cone Diameter10.5 cm
Motor Efficiency Factor6.7 (T•m2)/Ω
Voice Coil Former MaterialASV
Transducer Mass0.72 Kg
Equivalent Volume7.5 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.