WSP 21 S 8 OHM

20 cm (8") HiFi woofer with highly damped nawi-shaped polypropylene cone. High power handling due to capton voice-coil carrier and magnet vent.

No longer available.

Technical Data

Rated power
100 Watt
Maximum power
130 Watt
Nominal impedance Z
8 Ohm
Frequency response
fu - 8000 Hz
(fu: Lower cut-off frequency depending on cabinet)
Mean sound pressure level
91 dB (1W/1m)
Excursion limit
19 mm
Resonance frequency fs
28 Hz
Magnetic induction
1 Tesla
Magnetic flux
1100 µ Weber
Height of front pole-plate
8 mm
Voice coil diameter
5 cm
Height of winding
1.6 cm
Cutout diameter
18.5 cm
Net weight
2.3 kg
D.C. resistance Rdc
5.7 Ohm
Mechanical Q factor Qms
Electrical Q factor Qes
Total Q factor Qts
Equivalent volume Vas
80 l
Effective piston area Sd
213 cm2
Dynamically moved mass Mms
26 g
Force factor Bxl
9.3 T · m
Inductance of the voice coil L
1.2 mH
Frequency- and impedance response
Used in / Accessories: