WS 25 E 4 OHM

25 cm (10") woofer with coated paper cone, rubber edge and extended rear pole plate for long strokes. Due to the basket design especially suited as replacement woofer for many standard HiFi speakers.

No longer available.

Technical Data

Rated power
80 W
Maximum power
110 W
Nominal impedance Z
4 Ohm
Frequency response
fu–6000 Hz
(fu: Lower cut-off frequency depending on cabinet)
.
Mean sound pressure level
88 dB (1 W/1 m)
Excursion limit
+/−6 mm
Resonance frequency fs
32 Hz
Magnetic induction
1.0 T
Magnetic flux
310 µWb
Height of front pole-plate
4 mm
Voice coil diameter
25 mm
Height of winding
15 mm
Cutout diameter
225 mm
Net weight
1.25 kg
D.C. resistance Rdc
3.3 Ohm
Mechanical Q factor Qms
2.84
Electrical Q factor Qes
1.78
Total Q factor Qts
1.09
Equivalent volume Vas
107 l
Effective piston area Sd
346 cm²
Dynamically moved mass Mms
33 g
Force factor Bxl
3.8 T m
Inductance of the voice coil L
0.6 mH
Connections
5.2 x 0.8 mm (+)2.8 x 0.8 mm (−)
Frequency- and impedance response