When I search for Fostex on fleabay, I find these drivers. Have you-all talked about them, or has anyone tried them? The price is low(for the smaller ones), and the sales copy brags about the sound. Seller is in Hong Kong I think.
There's a thread on here about them, currently on mobile so can't search for them. Also been used on open baffle as near field, search YouTube for Chinese 4 inch speakers, or hiend open baffle.or similar.
He does include TS parameters and a FR graph. He compares these 4” or so drivers with Fostex, Lowther, Aura. Are Aura not quite different from Fostex and Lowther in concept and application, making it a very general comparison? Qts is lisited at .481 which would put them out of horn territory, no? Interesting that they are 4 ohm-that might suggest certain designs/amps as well it seems. They are nice to look at. Aluminum basket. I have noticed that Fostex does not include a whizzer (or phase plug for that matter) on their smaller drivers.
Thanks DYNABLASTERTUNERS , Your links(above) were very helpful. The latest page (7) on the second linked-thread includes comments on the ferrite magnet version that has replaced the earlier neo mag. model.
From the info here, it seems that dealing with the e bay seller can be a good experience, and that these good looking speakers are a good value. Bass is said to be strong for it's size as a FR driver.
Follow links from DYNABLASTERTUNERS above for more info.
If others have bought these, I'd like to know their impressions.