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Swan D5.4-II Mid-bass speaker
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Speaker Driver D Series
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D series loudspeaker parameter optimization design, high-strength integrated PP diaphragm, fatigue-resistant and high-loss natural rubber ring, high-stability centering support, internal magnetic magnetic circuit system and high-performance NdFeB magnets, high-power 52mm temperature resistance Pure aluminum voice coil wire, with aluminum voice coil skeleton, integrated aluminum basin frame, long-stroke linear displacement fully symmetrical low-distortion driving magnetic field design.

Sound characteristics: The low-mid frequency sound field has a fast response and the unit is suitable for audio systems, mid-bass units of home theater systems and small-sized subwoofer units.

Swan D5.4-II Technical parameters
Parameter name Symbol Value Unit
Basic application parameters
Rated impedance Z 4 Ω
Resonant frequency Fs 60 Hz
Rated power Pnom 40 W
Maximum power Pmax 80 W
Sensitivity (2.83V/1m) E 87 dB
Weight W 1.02 kg
Voice coil
Voice coil diameter 52.5 mm
DC resistance Re 3.6 Ω
Voice coil width H 11.3 mm
Voice coil wire Aluminum
Voice coil bobbin Aluminum
Magnetic circuit
Magnetic circuit type Internal magnetic type
Magnet material NdFeB
Force coefficient (BL value) BL 5.78 N/A
Magnetic gap height He 5 mm
Maximum linear displacement Xmax 3.5 mm
Small/Thiele parameters
Compliance Cms 568 uM/N
Mechanical Q value QMS 2.86  -
Electric Q value Qes 0.5  -
Total Q Qts 0.42  -
Vibration mass Mms 12.5 g
Equivalent volume Vas 5.8 L
Vibration diameter 104mm
Recommended box parameters for floor box
Cabinet Type Inverted
Recommended net volume of box VB 9 L
Inverter tuning frequency Fb 56 Hz
Cabinet in free field -3db frequency F3 51 Hz
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