Fostex FF125WK

€69.00 *

Prices incl. VAT plus shipping costs

Delivery time approx. 5 working days

  • fo-ff125wk
Double-layer cone / up-roll edge using a new material A double-layer cone paper consists of... more
Product information "Fostex FF125WK"

Double-layer cone / up-roll edge using a new material

A double-layer cone paper consists of two layers. One is a basic layer and the other is a surface layer. In the FF-WK series, a long-fibered (low freeness) wooden pulp is used for the basic layer, which has high rigidity realized by the large volume structure and appropriate internal loss. For the surface layer, the bincho charcoal powder is blended with a short-fibered (high freeness) kenaf, which allows to accelerate the propagation speed on the cone paper surface.

 

Specifications

  • power handling (continuous/programme) = 16/50 W
  • frequency range = 70-22000 Hz
  • resonance frequency fs = 67 Hz
  • impedance R = 8 Ohm
  • sound pressure level SPL = 89 dB (2,83V; 1m)
  • DC resistance Re = 6,7 Ohm
  • force factor BL = 5,59 N/A
  • effective piston radiating area Sd = 66 cm2
  • effective mechanical mass incl. air load mms = 5 g
  • equivalent volume of compliance Vas = 7,26 l
  • total Q factor Qts = 0,42 (Qms=5,09, Qes=0,46)
  • voice coil diameter = 25 mm
  • maximum peak linear excursion vibration xlin = +/- 1,65 mm
  • mounting diameter d = 104 mm
  • overall diameter d = 117 mm
  • mounting depth (not countersunk) t = 61,3 mm
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