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HDS-P830869 HDS-P830869 HDS-P830869


Platform: Peerless
Driver Type: Woofer
Size: 8 in
Motor: Ferrite
Frame: Al Basket
Impedance: 8 Ω
Diaphragm: Nomex

Frequency & Impedance Response


Technical Specifications

Driver Size 8 in
DC Resistance 5.88 Ω ±5.0%
Resonant Frequency 29.57 Hz 15%
Half Space Sensitivity @ 2.83V 89.26 dB ±1.01
Sensitivity @ 1W/1m 88.6 dB ±1.01
Rated Noise Power (IEC 268-5 18.1) 60 W
Test Spectrum Bandwidth 30Hz - 2kHz 12 dB/Oct
Effective Piston Area 227 cm2
Moving Mass 24 g
Motor Force Factor 8.92 T•m
Voice Coil Inner Diameter 32.41 mm
Gap Height 6 mm
Maximum Linear Excursion 5.5 mm
Ferrofluid Type
Minimum Impedance   6.83 Ω ±7.5%
Voice Coil Inductance 0.63 mH
Mechanical Q Factor 4.4
Electrical Q Factor 0.33
Total Q Factor 0.31
Ratio 96.63 fs/Qts
Energy Bandwidth Product ((1/Qes)•fs)
Suspension Compliance 1207.9 μm/N
Effective Cone Diameter 17 cm
Motor Efficiency Factor 13.5 (T•m2)/Ω
Voice Coil Former Material ASV
Driver Mass 1.74 Kg
Equivalent Volume 87.41 L

Product Info

This 8 inch 8 ohm driver is a member of the high performance HDS family. A powerful ferrite magnet system is coupled to a finite element analysis designed suspension system, containing both a linear spider design and a rubber surround. The motor contains an aluminium shorting ring, which reduces coil inductance, thus providing both extended frequency response performance and reduced distortion. The long-throw voice coil ensures linear high excursion performance, needed for signal clarity. The cone necks are vented so as to reduce air compression effects under high excursion conditions. The cast aluminium basket offers structural rigidity, heat sinking capacity for the motor, and additional air venting under the spider so as to again reduce air compression effects. The cone in this model is nomex based, offering a unique visual and acoustic experience.

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