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Peerless by Tymphany 830656 5-1/4″ Paper Cone SDS Woofer



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

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2,100.00 2,250.00



Driver Size 5.25 in
DC Resistance 6.06 Ω ±5.0%
Resonant Frequency 57.23 Hz 15%
Half Space Sensitivity @ 2.83V 85.7 dB ±1.01
Sensitivity @ 1W/1m 84.8 dB ±1.01
Rated Noise Power (IEC 268-5 18.1) 60 W
Test Spectrum Bandwidth 50Hz – 5kHz 12 dB/Oct
Effective Piston Area 86.6 cm2
Moving Mass 9.3 g
Motor Force Factor 5.36 T•m
Voice Coil Inner Diameter 25.73 mm
Gap Height 6 mm
Maximum Linear Excursion 3.5 mm
Ferrofluid Type
Minimum Impedance 6.54 Ω ±7.5%
Voice Coil Inductance 0.37 mH
Mechanical Q Factor 3.6
Electrical Q Factor 0.7
Total Q Factor 0.59
Ratio 97.33 fs/Qts
Energy Bandwidth Product ((1/Qes)•fs)
Suspension Compliance 833.2 μm/N
Effective Cone Diameter 10.5 cm
Motor Efficiency Factor 4.7 (T•m2)/Ω
Voice Coil Former Material ASV
Driver Mass 0.68 Kg
Equivalent Volume 8.77 L



Platform: Peerless
Driver Type: Woofer
Size: 5.25 in
Motor: Ferrite
Frame: Steel Basket
Impedance: 8 Ω
Diaphragm: CP (Coated Paper)