Anyone looking into Feastrex online already knows how ardently I admire them, so I won't repeat all that here. Another really nice Japanese speaker that is cheaper than Feastrex is the Flat series of drivers made by FAL. I heard their Supreme-S and was extremely impressed. If I was not a Feastrex user I'd probably be using FAL.
http://www.fal.gr.jp/catalog/english/supreme-s.html
http://www.fal.gr.jp/catalog/english/supreme-s.html