W 170 S - 8 Ohm

Art. No. 9025

17 cm (6.5") HiFi woofer with coated paper cone, powerful drive and extended rear pole plate. Special voice-coil and elastic rubber surround for long strokes.

Recommended cabinets:

Volume/Principle

BR-Channel

fb

fc/QTC 20

l/closed - - 57 Hz/0,74 20 l/bass reflex BR 19.24 (length 14 cm) 44 Hz - 30 l/bass reflex BR 15.34 (length 12 cm) 39 Hz - 50 l/bass reflex BR 15.34 33 Hz -

Volume/Principle BR-Channel fb fc/QTC
20 l/closed - - 61 Hz/0,88
20 l/Bassreflex BR 19.24 (length 14 cm) 44 Hz -
30 l/bass reflex BR 15.34 (length 12 cm) 39 Hz -
50 l/bass reflex BR 15.34 33 Hz -

Technical Data

Rated power
50 W
Maximum power
80 W
Nominal impedance Z
8 Ohm
Frequency response
fu–8000 Hz
(fu: Lower cut-off frequency depending on cabinet)
.
Mean sound pressure level
86 dB (1 W/1 m)
Opening angle (-6 dB)
72°/4000 Hz
Excursion limit
+/−10 mm
Resonance frequency fs
36 Hz
Magnetic induction
1.0 T
Magnetic flux
314 µWb
Height of front pole-plate
4 mm
Voice coil diameter
25 mm
Height of winding
12.5 mm
Cutout diameter
148 mm
Net weight
1.1 kg
D.C. resistance Rdc
5.9 Ohm
Mechanical Q factor Qms
2.43
Electrical Q factor Qes
0.66
Total Q factor Qts
0.52
Equivalent volume Vas
38 l
Effective piston area Sd
129 cm²
Dynamically moved mass Mms
13 g
Force factor Bxl
5.4 Tm
Inductance of the voice coil L
1.2 mH
Frequency- and impedance response
Directivity pattern