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Vifa PL14WJ-09-08 Midwoofer

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The Vifa PL14WJ-09-08 is a one of the smoothest sounding 5" drivers ever manufactured. This long term favourite was first produced in the 1980s and remains a benchmark performer with an unusually smooth usable output to over 7 kHz. Featuring a damped pulp cone, magnesium chassis and powerful vented magnet system, this 5" / 149mm unit is very easy to work with - crossover modelling is straightforward.

This high quality drive unit is now made by Scanspeak in Denmark using the original Vifa tooling.

Key Features:

  • Very smooth frequency response to 7kHz
  • Damped pulp NRSC cone
  • Low loss linear rubber suspension
  • Slimline magnesium chassis
  • Powerful vented magnet system
  • Excellent overall performer

Basic parameters:

Resonant frequency (fs) 47 Hz Nominal impedance (Zn) 8 Ω
Mechanical  Q factor (Qms) 2.2
DC resistance (Re) 5.8 Ω
Electrical Q factor (Qes) 0.46
RMS power handling 40 W
Total Q factor (Qts) 0.38
Sensitivity (2.83V/1m) 88 dB
Equivalent volume (Vas) 13L
Chassis diameter 149 mm

Here's the full datasheet:

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