Regarding cones : MWA -making waves-something- in the American southwest if I recall - made the cones last used by Altec and then for gpa, which I read either here or on audio karma when I searched replacement cone; One of the audio forums anyway. They Still do - or at least as of 3 yrs ago . I think ss or the like sell them but with no mention of the maker. Part number stamped on cone starts with “mw”. Had Fab Audio in Coburg - formerly in Toronto just down the 401 - Ontario recone my 416-8a’s and those are what he installed. Good job too.
jon Archibald
member since I don’t recall - aught-six?