Hello,
I am planning to build a horn system with an Altec 288 or Vitavox S2 driver, the woofer may be the Altec 515 or Fertin 38EX(field coil):

fertin g

fertin ar

http://www.jlbcreations.com/fertin/produits_hp.asp

Does anyone know the Fertin woofer or using it in their system? Is it good enough to substitute the Altec 515 woofer?

Regards Jimmy