Those Mitsus are nice! looked at the d5000's in your link 15" woofers 10" mid,
2 boron tweeters. They describe the woofer and mid cone as {quote}" Aramid honeycomb curved corn." (l think they are mis - translating cone to corn. ) Tweeters "The D.U.D. boron dome is adopted as a mid high as well as a tweeter. In the diaphragm adopted by DS-5000, boron diffusion is improved powerfully, with the crystal growth boron, boron-ization of a titanium base material is promoted further and the proper tone of metal titanium is conjointly stopped with the rigidity of the boron. " sounds pretty high end for 80's . Now the baffle is made by "Direct pasting of good lauan plywood is given to a baffle plate, and a Canadian needle-leaf forest 2 ply particle board is used for it at other portions." "Moreover, the acoustic characteristic of resulting in a sound-absorbing material from a material is pursued to a limit by embedding solid walnut material in the center of a baffle plate " etc.( Not to sure about the Canadian needle-leaf forest 2 ply particle board. either) But I wouldn't mind giving these a listen. 495,000 yen for a set in 1982 was about $2500.00 then . Allowing for inflation and exchange rates they would be about $ 6850.00 now thanks for posting them for sure. The description was worth a read . Didn't know Mitsubishi made statement speakers . They should have lost the vinyl for some " Honduran needle -leaf forest mahogany veneer" Seems like they and other mfrs. kept a lot of higher end stuff for the Japan market. I like the DS 3000 speakers as well . links
http://audio-database.com/MITSUBISHI-DIATONE/diatoneds/ds-5000-e.htm
http://audio-database.com/MITSUBISHI-DIATONE/diatoneds/ds-3000.-e.htm
regards all
