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

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
Frequency- and impedance response