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  -

 

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
Show all data

sketch

frequency- and impedance response

directivity pattern