Fostex FF 225WK

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recommended cabinet 1:
closed cabinet with 11,4 L volume
from 101/64 Hz (-3dB/-8dB)
 
recommended cabinet 2:
39 L volume bass reflex cabinet
with HP70 reflex tube, 6 cm long.
from 53/41 Hz (-3dB/-8dB).

Fostex FF 225WK       order no. fx-ff225wk       EUR 165,00 excl. VAT: € 138.66 / $ 162.23
20 cm full range driver with high quality cone.
  • power handling (continuous/programme) = 34/100 W
  • frequency range = 40-17000 Hz
  • resonance frequency fs = 44 Hz
  • impedance R = 8 Ohm
  • sound pressure level SPL = 93 dB (2,83V; 1m)
  • DC resistance Re = 6 Ohm
  • force factor BL = 8,49 N/A
  • effective piston radiating area Sd = 220 cm2
  • effective mechanical mass incl. air load mms = 18,4 g
  • equivalent volume of compliance Vas = 57,9 l
  • total Q factor Qts = 0,35 (Qms=2,31, Qes=0,409)
  • voice coil diameter = 50 mm
  • maximum peak linear excursion vibration xlin = +/- 2,25 mm
  • mounting diameter d = 185 mm
  • overall diameter d = 208 mm
  • mounting depth (not countersunk) t = 91,7 mm
PDF data sheet
The cabinet volume calculations are executed considering an external resistance of 0.3 Ohm. We are using, if no other data is known or available, the information supplied by the manufacturer.

Please note: the frequency response doesn't say much about the cut-off frequency inside the cabinet! Therefore, we mostly give you 2 examples with dimensioning considerations and an indication, how low the loudspeaker will reproduce.

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