Fostex W 400A-HR

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recommended cabinet 1:
closed cabinet with 46 L volume
from 64/41 Hz (-3dB/-8dB)
 
recommended cabinet 2:
139 L volume bass reflex cabinet
with 2x HP100 reflex tube, 20 cm long.
from 35/27 Hz (-3dB/-8dB).

Fostex W 400A-HR       order no. fx-w400a-hr       EUR 4598,00 excl. VAT: € 3863.87 / $ 4559.36
38 cm bass driver with high quality cone.
  • power handling (continuous/programme) = 67/200 W
  • frequency range = 30-2500 Hz
  • resonance frequency fs = 25 Hz
  • impedance R = 8 Ohm
  • sound pressure level SPL = 94 dB (2,83V; 1m)
  • DC resistance Re = 6 Ohm
  • force factor BL = 19,5 N/A
  • voice coil inductance L = 2,64 mH
  • effective piston radiating area Sd = 820 cm2
  • effective mechanical mass incl. air load mms = 130 g
  • equivalent volume of compliance Vas = 310 l
  • total Q factor Qts = 0,31 (Qms=8,2, Qes=0,32)
  • voice coil diameter = 100 mm
  • maximum peak linear excursion vibration xlin = +/- 5,5 mm
  • mounting diameter d = 350 mm
  • overall diameter d = 395 mm
  • mounting depth (not countersunk) t = 242 mm
  • mass m = 21,4 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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