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Vifa P17WJ-00-08 Woofer

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The Vifa P17WJ-00-08 is a long term favourite woofer that was first produced in the 1980s. Featuring a polypropylene cone, alloy chassis and powerful vented magnet system, the 6½" / 170mm  P17WJ-00-08 has stood the test of time and is still an excellent performer. This high quality drive unit is now made by Scanspeak in Denmark using the original Vifa tooling.

Excellent replacement for Linn Ninka bass units.

Key Features:

  • Very smooth frequency response
  • Vacuum formed polypropylene cone
  • Low loss linear rubber suspension
  • Slimline aluminium chassis
  • Powerful vented magnet system

Basic parameters:

Resonant frequency (fs) 37 Hz Nominal impedance (Zn) 8 Ω
Mechanical  Q factor (Qms) 1.55
DC resistance (Re) 5.8 Ω
Electrical Q factor (Qes) 0.45
RMS power handling 40 W
Total Q factor (Qts) 0.35
Sensitivity (2.83V/1m) 88 dB
Equivalent volume (Vas) 34.7L
Chassis diameter 170 mm

Here's the full datasheet:

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