1. step 1

     -Read our tutorial articles to get a detailed picture of what hifi


     speaker design is all about.

     -Browse the list of loudspeaker manufacturer websites and use


     our database of downloadable loudspeaker datasheets to select


     your drivers.

     -Choose the right design software that suits you best to


     calculate your enclosure dimensions and buy everything


     you need from a retail shop.

  2. step 2 v2

      -Assemble your crossover-less speaker and let your lab equipment


     (or measurement software) acquire the necessary response


      measurements. Use your crossover design software to decide a


      crossover network that fits your acoustical targets.

     -Browse the list of component manufacturer websites and buy all the


      necessary components.

     -Use a suitable pcb and your soldering equipment to conclude


      your crossover network implementation.



  3. step 3



     -If you get addicted to hifi speaker design you can try to


      broaden your technical background by consulting our


     book review section and -why not- browsing the


     journals of the existing audio societies.

     -You can also get closer to audio enthusiasts' community


     through our list of worldwide audio websites,


     web-magazines and discussion fora.



FOSTEX Driver Datasheets -2016

Download link

Model part number


fostex 98x25


F120A F120A 5'', 89dB/2.83V/1m, 8 Ohms.
FE83En FE83En 3'' ES cone, 88dB/2.83V/1m, 8 Ohms.
FE103En FE103En 4'' ES cone, 89dB/2.83V/1m, 8 Ohms.
FE103-Sol FE103-Sol 4'' ES cone, 90dB/2.83V/1m, 8/16 Ohms.
FE108E-sigma , enclosure FE108E-sigma 4'' hyperbolic paraboloid cone with UDR damping ring, 90dB/2.83V/1m, 8 Ohms.
FE126En FE126En 4.5'' ES cone, 93dB/2.83V/1m, 8 Ohms.
FE166En FE166En 6.5'' ES cone, 94dB/2.83V/1m, 8 Ohms.
FE166ES-R FE166ES-R 6'' ES cone, 95.5dB/2.83V/1m, 8 Ohms.
FE168E-sigmaenclosure FE168E-sigma 6.5'' ES hyperbolic paraboloid cone with UDR damping ring, 94.5dB/2.83V/1m, 8 Ohms.
FE203En-S FE203En-S 8'' cone, 99dB/2.83V/1m, 8 Ohms.
FE206En FE206En 8'' ES cone, 96dB/2.83V/1m, 8 Ohms.
FE208E-sigma, enclosure FE208E-sigma 8'' ES hyperbolic paraboloid cone with UDR damping ring, 97dB/2.83V/1m, 8 Ohms.
FF85WK FF85WK 3'' double-layer paper cone, 86.5dB/2.83V/1m, 8 Ohms.
FF105WK FF105WK 4'' double-layer paper cone, 88dB/2.83V/1m, 8 Ohms.
FF125WK FF125WK 5'' double-layer paper cone, 89dB/2.83V/1m, 8 Ohms.
FF165WK FF165WK 6.5'' double-layer paper cone, 92dB/2.83V/1m, 8 Ohms.
FF225WK FF225WK 8'' double-layer paper cone, 93dB/2.83V/1m, 8 Ohms.
FX120 FX120 5'' cone, 89dB/2.83V/1m, 8 Ohms.
P800K P800K 3'' banana-pulp paper cone, 84.5dB/2.83V/1m, 8 Ohms.
P1000K P1000K 4'' banana-pulp paper cone, 88dB/2.83V/1m, 8 Ohms.
fostex 98x25

Horn Drivers

D1400 D1400 104dB/2.83V/1m, 8 Ohms, to be used with H300 horn.
D1405 D1405 104dB/2.83V/1m, 8 Ohms, to be used with H400 horn.
fostex 98x25

Horn Tweeters

FT17H FT17H 98.5dB/2.83V/1m, shielded, 8 Ohms.
FT96H FT96H 100dB/2.83V/1m, 8 Ohms.
T90A T90A 106dB/2.83V/1m, 8 Ohms.
T500A-MkII T500A-MkII 103dB/2.83V/1m, magnesium diaphragm, 8 Ohms.
T900A T900A 106dB/2.83V/1m, 8 Ohms.
T925A T925A 108dB/2.83V/1m, 8 Ohms.
fostex 98x25


FT7RP FT7RP Ribbon Tweeter, 93dB/2.83V/1m, 8 Ohms.
FT28D FT28D Dome Tweeter, 90dB/2.83V/1m, 8 Ohms.
FT48D FT48D Dome Tweeter, 93dB/2.83V/1m, 8 Ohms.
FT207D, appl.note1, appl.note2 FT207D 20mm UFLC soft dome, 90dB/2.83V/1m, 8 Ohms.
T250D T250D 1'' magnesium dome, 90dB/2.83V/1m, 8 Ohms.
fostex 98x25


FW108N, enclosure FW108N 4'' cone, 86dB/2.83V/1m, 8 Ohms.
FW168HR FW168HR 6.5'' HR shape cone, 88dB/2.83V/1m, 35mm voice coil, 8 Ohms.
FW168N, enclosure FW168N 6.5''cone, 89dB/2.83V/1m, 8 Ohms.
FW208N, enclosure1, enclosure2 FW208N 8''cone, 90dB/2.83V/1m, 8 Ohms.
FW305enclosure FW305 12''cone, 95dB/2.83V/1m, 8 Ohms.
FW405N FW405N 15'' tree-pulp + carbon fiber hybrid cone, 92.5dB/2.83V/1m, 8 Ohms.
FW800HS FW800HS 31.5'' special cone, double push-pull spider, 96dB/2.83V/1m, 8 Ohms
W400AHR W400AHR 15'' HR cone, 94dB/2.83V/1m, 8 Ohms.