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SWAN D8.4MKII woofer speaker
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Speaker Driver D Series
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D8.4MKII speaker parameter optimization design, integrated PP diaphragm, fatigue-resistant natural rubber ring; modified blended centering support provides good recovery and permeability; high-power 76mm diameter voice coil, high temperature resistant copper-clad aluminum Wire, with KAPTON frame without eddy current loss; well-designed symmetrical magnetic circuit system, integrated high-density cast aluminum pot frame effectively suppresses bad vibration and minimizes distortion.

Sound characteristics: high power withstand, long linear stroke, large dynamic and small distortion, low frequency volume is low, elastic and warm; suitable for Hi-Fi, AV audio systems and subwoofers.

Swan D8.4MKII Technical parameters
Parameter name Symbol Value Unit
Basic application parameters
Rated impedance Z 4 Ω
Resonant frequency Fs 34 Hz
Rated power Pnom 100 W
Maximum power Pmax 200 W
Sensitivity (2.83V/1m) E 86 dB
Weight W 3 kg
Voice coil
Voice coil diameter 76 mm
DC resistance Re 3.4 Ω
Voice coil width H 16.5 mm
Voice coil wire Copper clad aluminum
Voice coil bobbin Kapton
Magnetic circuit
Magnetic circuit type Internal magnetic type
Magnet material NdFeB
Force coefficient (BL value) BL 7.8 N/A
Magnetic gap height He 6 mm
Maximum linear displacement Xmax 5 mm
Small/Thiele parameters
Compliance Cms 511 uM/N
Mechanical Q value QMS 3.8  -
Electric Q value Qes 0.51  -
Total Q Qts 0.45  -
Vibration mass Mms 41.7 g
Equivalent volume Vas 45 L
Recommended box parameters for floor box
Cabinet Type Inverted
Recommended net volume of box VB 48 L
Inverter tuning frequency Fb 33 Hz
Cabinet in free field -3db frequency F3 33 Hz
Bookshelf box recommended box parameters
Cabinet Type Inverted
Recommended net volume of box Vb 32 L
Inverter tuning frequency Fb 40 Hz
Cabinet in free field -3db frequency F3 40 Hz
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