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WS 17 E - 8 Ohm

Art. No. 1055

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.

*Gross price for private customers. Industrial prices are available on request.
Technical Data
Amplitude & Impedance Frequency
Directivity pattern
Rated power 60 W
Maximum power 90 W
Nominal impedance Z 8 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 5.8 Ohm
Mechanical Q factor Qms 2.2
Electrical Q factor Qes 1.28
Total Q factor Qts 0.81
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 0.9 mH
Connections 5.2 x 0.8 mm (+)/2.8 x 0.8 mm (-)

Used in / Accessories:


The CLOU is a slim-line 2-band column speaker offering real value-for-money as a key feature, as shown in the choice of two WS 17 E - 8 Ohmfor the low-to-medium frequencies and the SC 10 N - 8 Ohm for the higher frequency range. To guarantee balanced overall sound quality using these less-expensive drivers, the two mid-bass units are physically separated from each other and each has its own enclosure. The lower WS 17 E - 8 Ohm is mounted in a 36-litre compartment. This produces a uniform increase in the frequency response from 60 Hz up to 600 Hz. The upper WS 17 E - 8 Ohm, on the other hand, is mounted in a smaller 16-litre compartment, which causes a slight increase in the range of frequencies between 60 Hz and 150 Hz. However, taken jointly, the two mid-bass units create a harmonious bass foundation which deliberately emphasises the frequencies between 60 Hz and 130 Hz. To ensure a seamless transition between the tweeter and the bass drivers, you need a properly balanced damping circuit to cut out any unwanted peaks and resonance.

The result of this unusual combination of drivers and cabinet is a column speaker that has to be seen and heard to be believed and one which produces a sound quality well above its moderate price range.

Art. No. 5961

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