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  • w400s
w400s

W 400 S 4 OHM

Art. No. -
40 cm (15") HiFi woofer with powerful drive, extended rear pole plate and elastic long-stroke surround. 50 mm voice-coil and magnet vent for high power handling. Suitable for large 4- way combinations and for high power subwoofers. Excellent price/performance ratio.
No longer available
Technical Data
Sketch
Amplitude & Impedance Frequency
Rated power 200 Watt
Maximum power 300 Watt
Nominal impedance Z 4 Ohm
Frequency response fc - 2000 Hz
Mean sound pressure level 92 dB (1 W/1 m)
Excursion limit 25 mm
Resonance frequency fs 22 Hz
Magnetic induction 1.1 Tesla
Magnetic flux 1400 µWeber
Height of front pole-plate 8 mm
Voice coil diameter 50 mm
Height of winding 20 mm
Cutout diameter 348 mm
Net weight 5 kg
D.C. resistance Rdc 3.9 Ohm
Mechanical Q factor Qms 3.71
Electrical Q factor Qes 0.44
Total Q factor Qts 0.4
Equivalent volume Vas 680 l
Effective piston area Sd 840 cm2
Dynamically moved mass Mms 77 g
Force factor Bxl 9.67 T m
Inductance of the voice coil L 0.72 mH
w400s_tz
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w400s_fs
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