pigdog wrote:interesting, i also found a replica made by japanese and is available here, also note the asano kit amps
http://www.eifl.co.jp/index/export/gip/gip-ex.htmlnote the very high asking price! i see that the really crazy japanese enthusiasts were into these type of horns
A lot of American treasure hunters would agree the Japanese (as well as other Asian) enthusiasts are crazy that's why they are still exporting their audio heritage.The Japanese vintage audio market has been established several years ahead of the rest of the world. Based on Stereo Sound issues I've seen dating back to the 80s, replica makers have come and go since this is more of a cottage industry/handicraft.
It is just interesting to note that China sees a potential market too.....
pigdog wrote:is there are specific advantage of field coil versus conventional drivers?
Obviously there is no risk of demagnetization and supposedly the magnetic field is stronger and more concentrated/focused.