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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.
Technical Data
Sketch
Amplitude & Impedance Frequency
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 (-)

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