Shazb0tthey are all the same driver just with different magnetic arrays, bro.
But closer to 600/x00 than 900. Fostex isn't stupid, they won't sell the 900's magnets in a headphone less than a third the price.
UzuzuFoster/Fostex doesn't seem to care about that. They put TH600 drivers and nicer cups in the THX00 for about half the price as the TH600. Foster makes a *lot* more money as an OEM than Fostex makes as a headphone maker. The actual Fostex headphones are almost like a side business.
UzuzuYou keep insisting this as fact, do you have anything to back up your claim? It seems fjrabon has a source, do you?
I don't intend this to sound confrontational, I'm genuinely curious if you know something the rest of us don't so we can make a better, more informed purchasing decision.