Woofer
The SDS compact subwoofer 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.
MECHANICAL 2D DRAWING
Revision:1.0 | Date: 2015-4-27
SDS-P830657
SPECIFICATIONS
DC Resistance Revc Ω 6.05 ±5.0% Moving Mass Mms g 11.5
Minimum Impedance Zmin Ω 6.44 ±7.5% Suspension Compliance Cms um/N 1101.4
Voice Coil Inductance Le mH 0.38 – Effective Cone Diameter D cm 13.4
Resonant Frequency fs Hz 44.75 15% Effective Piston Area Sd cm2 141
Mechanical Q Factor Qms – 2.74 – Equivalent Volume Vas L 30.77
Electrical Q Factor Qes – 0.55 – Motor Force Factor BL T•m 5.98
Total Q Factor Qts – 0.46 – Motor Efficiency Factor β (T•m2)/Ω 5.9
Ratio fs/Qts – 98.35 – Voice Coil Former Material VCfm – ASV
Half Space Sensitivity dB@2.83V/1m dB 89.46 ±1.01 Voice Coil Inner Diameter VCd mm 25.73
Sensitivity 1W/1m dB 88.5 ±1.01 Gap Height Gh mm 6
Rated Noise Power (IEC 268-5 18.1) P W 60 – Maximum Linear Excursion Xmax mm 3.5
Test Spectrum Bandwidth 12 dB/Oct 40Hz - 4kHz – Ferrofluid Type FF –
Energy Bandwidth Product EBP (1/Qes)•fs – Transducer Size – – 6 in
– Transducer Mass – Kg 0.84
FREQUENCY & IMPEDANCE RESPONSE
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