W 100 S - 4 Ohm

Art. No. 9020

10 cm (4") HiFi low-midrange driver with coated paper cone, elastic rubber surround and 20 mm voice-coil. Suitable as woofer in mini-speaker systems and due to the very balanced frequency response especially suitable as low-midrange driver in 3-way speakers and in subwoofer/satellite systems.

Volume/Principle BR-Channel fb fc/QTC
4 l/closed - - 95 Hz/0,67
5 l/bass reflex BR 6.8 (length 6 cm) 70 Hz -
10 l/bass reflex BR 6.8 (length 5 cm) 56 Hz -

Technical Data

Rated power
30 W
Maximum power
50 W
Nominal impedance Z
4 Ohm
Frequency response
fu–15000 Hz
(fu: Lower cut-off frequency depending on cabinet)
.
Mean sound pressure level
86 dB (1 W/1 m)
Opening angle (-6 dB)
86°/4000 Hz
Excursion limit
+/−4 mm
Resonance frequency fs
65 Hz
Magnetic induction
1 T
Magnetic flux
250 µWb
Height of front pole-plate
4 mm
Voice coil diameter
20 mm
Height of winding
8 mm
Cutout diameter
94 mm
Net weight
0.49 kg
D.C. resistance Rdc
3.4 Ohm
Mechanical Q factor Qms
3.04
Electrical Q factor Qes
0.54
Total Q factor Qts
0.46
Equivalent volume Vas
4.49 l
Effective piston area Sd
53 cm²
Dynamically moved mass Mms
5.3 g
Force factor Bxl
3.7 Tm
Inductance of the voice coil L
0.5 mH
Frequency- and impedance response
Directivity pattern