Fostex FW 208N

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recommended cabinet 1:
closed cabinet with 2,5 L volume
from 114/72 Hz (-3dB/-8dB)
 
recommended cabinet 2:
4,8 L volume bass reflex cabinet
with HP70 reflex tube, 63 cm long.
from 75/55 Hz (-3dB/-8dB).

Fostex FW 208N       order no. fx-fw208n       - not available
21 cm bass driver with high quality cone.
  • power handling (continuous/programme) = 34/100 W
  • frequency range = 29-5000 Hz
  • resonance frequency fs = 29 Hz
  • impedance R = 8 Ohm
  • sound pressure level SPL = 90 dB (2,83V; 1m)
  • DC resistance Re = 5,8 Ohm
  • effective piston radiating area Sd = 206,08101 cm2
  • effective mechanical mass incl. air load mms = 40 g
  • equivalent volume of compliance Vas = 43,42 l
  • total Q factor Qts = 0,21 (Qms=13,2, Qes=0,21)
  • maximum peak linear excursion vibration xlin = +/- 6,5 mm
  • mounting diameter d = 182 mm
  • overall diameter d = 230 mm
  • mounting depth (not countersunk) t = 108,76 mm
  • mass m = 4,62 kg
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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