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Fountek FR58C Full Range Drive Unit

Fountek FR58C Full Range Drive Unit.

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A small 51mm full range drive unit featuring an aluminium cone and kapton voice coil former. The FR58C is great value and ideal for experimenting with single point drive units in micro loudspeaker systems.

Key Features:

  • Aluminium cone / dust cap
  • Rigid pressed steel chassis
  • 21mm copper / aluminium voicecoil
  • High compliance rubber suspension
  • Kapton voice coil former
  • Smooth frequency response

Basic parameters:

Resonant frequency (fs) 154 Hz Nominal impedance (Zn) 8 Ω
Mechanical  Q factor (Qms) 2.36 DC resistance (Re) 6.35 Ω
Electrical Q factor (Qes) 2.38 RMS power handling 5W
Total Q factor (Qts) 1.18 Sensitivity (2.83V/1m) 80.7 dB
Equivalent volume (Vas) 0.49L Chassis diameter (square) 61 mm