You guys don't like police/donut jokes, huh? Even in real life?
Oh well, onto the matter at hand.
Parts Express was very helpful but couldn't confirm whether the Vifa D27TG35-06 is an exact match. Spec wise, there are no issues but the diameter opening is slightly bigger than the original by 2/16 of an inch. I will need to bore it out to make it fit. It also is a soft dome silk tweeter instead of the original aluminum-manganese, which I prefer.
Since Canton never responded to my inquiry I tried their US service company, American Audio & Video in Southaven, Mississippi and Tom McGhee, their technical support rep, is going to contact Canton in Germany on my behalf to see what they could do. So we'll see.
BTW the speaker has quite a few gouges, not large or deep but noticeable. Has anybody here repainted their black oak veneer speakers? I tried the old Sharpie trick but it looks like shite.