WS 17 E - 4 Ohm

Art. No. 1054

17 cm (6.5") HiFi woofer with coated paper cone, elastic rubber surround and inverse dust-cap. Due to the balanced frequency response also suitable as low-midrange driver for 4-way speaker systems. Due to the special basket design especially suitable as replacement driver for many HiFi speakers.

Technical Data

Rated power
60 W
Maximum power
90 W
Nominal impedance Z
4 Ohm
Frequency response
fu–7000 Hz
(fu: Lower cut-off frequency depending on cabinet)
Mean sound pressure level
88 dB (1 W/1 m)
Opening angle (-6 dB)
47°/4000 Hz
Excursion limit
+/−6.5 mm
Resonance frequency fs
45 Hz
Magnetic induction
0.8 T
Magnetic flux
314 µWb
Height of front pole-plate
5 mm
Voice coil diameter
25 mm
Height of winding
12 mm
Cutout diameter
150 mm
Net weight
0.97 kg
D.C. resistance Rdc
3.2 Ohm
Mechanical Q factor Qms
Electrical Q factor Qes
Total Q factor Qts
Equivalent volume Vas
22 l
Effective piston area Sd
143 cm²
Dynamically moved mass Mms
16 g
Force factor Bxl
3.9 T m
Inductance of the voice coil L
0.6 mH
5.2 x 0.8 mm (+)2.8 x 0.8 mm (−)
Frequency- and impedance response
Directivity pattern