FSB022540-0402
FSB022540-0402
FSB022540-0402
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4" Paper Cone Woofer

FSB022540-0402

Feature
4”, Steel Frame
1” PESVW Voice Coil, Aluminum Former
PULP Diaphragm and Coating Black Dust Cap
Ferrite Magnet Motor System
Long Excursion(±3.6mm)
Low Distortion (<3%)
Size
4 Inch
Fs
80 Hz
Re
4 Ohms
Sensitivity
88 dB
Quality Factor
0.52 Qts
Rated Power
25 W
  • Description
  • Simulation
  • Measure Chart
  • Specification
  • Mechanical Drawing
SPEC SHEET

This 4 inch 4 ohm Woofer driver, with 1 inch voice coil copper wire, Aluminum former, damping glue coated PULP cone and NBR rubber surround. The long-throw voice coil ensures linear high excursion. The Aluminum former are vented holes so as to reduce air compression effects. Additionally, coated paper cones come equipped with special-designed roll rubber surrounds can get smooth response curve.

Family
Range
FSB022540-0402

T-S Parameters
Resonance frequency [fs] 78.8 Hz
Mechanical Q factor [Qms] 5.221
Electrical Q factor [Qes] 0.578
Total Q factor [Qts]  0.520
Force factor [Bl] 5.031 Tm
Mechanical resistance [Rms] 0.709 kg/s
Moving mass [Mms]  7.473 g
Compliance [Cms] 0.546 mm/N
Effective diaph. diameter [D]  85 mm
Effective piston area [Sd] 56.75 cm²
Equivalent volume [Vas] 2.4877 l
Sensitivity (2.83V/1m)  88 dB
Ratio Bl/√Re 2.52 N/√W
Ratio fs/Qts 151.53 Hz
Electrical Data
Nominal impedance [Zn]  4 Ω
Minimum impedance [Zmin]  4.2 Ω
Maximum impedance [Zo] 27.26 Ω
DC resistance [Re] 3.95 Ω
Voice coil inductance [Le]  0.29 mH
Power Handling
100h RMS noise test (IEC 18.4) 25 W
Long-term max power (IEC 18.2) - W
Voice Coil & Magnet Data
Voice coil diameter 25.4 mm
Voice coil height 13.2 mm
Voice coil layers 2
Height of gap 6 mm
Linear excursion ± 3.6 mm
Max mech. excursion ± - mm
Unit weight 0.915 kg

 

FSB022540-0402

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