FSI521540-4402
FSI521540-4402
Standard
4" Mica Cone Woofer

FSI521540-4402

Features
4", Steel Frame
1" EISVW Voice Coil, Glass Fiber Former
Mica Cone, Rubber Surround
Strong Ferrite Magnet Motor System
Linear Spider
Size
4 Inch
Fs
95 Hz
Re
3.55 Ohms
Sensitivity
86 dB
Quality Factor
0.75 Qts
Rated Power
10 W
  • Description
  • Measure Chart
  • Specification
  • Mechanical Drawing
SPEC SHEET

This is a 4 inch 4 ohm driver, it is a Woofer features 1 inch voice coil with EISVW. In term of suspension system, cone is consisted by Paper Cone body with SBR surround and spider is consisted by NC. In term of magnet motor system, magnet is consisted by Ferrite material. It can be used on Woofer model.

Family
Range
 
T-S Parameters
Resonance frequency [fs] 94 Hz
Mechanical Q factor [Qms] 17.137
Electrical Q factor [Qes] 0.782
Total Q factor [Qts]  0.748
Force factor [Bl] 4.411 Tm
Mechanical resistance [Rms] 0.25 kg/s
Moving mass [Mms]  7.23 g
Compliance [Cms] 0.394 mm/N
Effective diaph. diameter [D]  80 mm
Effective piston area [Sd] 50.26 cm²
Equivalent volume [Vas] 0.508 l
Sensitivity (2.83V/1m)  86 dB
Ratio Bl/√Re 2.35 N/√W
Ratio fs/Qts 125.67 Hz
Electrical Data
Nominal impedance [Zn]  4 Ω
Minimum impedance [Zmin]  3.86 Ω
Maximum impedance [Zo] 33.84 Ω
DC resistance [Re] 3.55 Ω
Voice coil inductance [Le]  0.267 mH
Power Handling
100h RMS noise test (IEC 18.4) 10 W
Long-term max power (IEC 18.2) - W
Voice Coil & Magnet Data
Voice coil diameter 25.4 mm
Voice coil height 11.8 mm
Voice coil layers 2
Height of gap 6 mm
Linear excursion ± 2.9 mm
Max mech. excursion ± - mm
Unit weight 0.729 kg

 

FSI521540-4402

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