Looking for foam surrounds for SD 300ti


Sound Dynamics 300ti. Midrange foam has disintegrated. Can't seem to find right size:

Frame od: 5"
frame id 4"
OD of speaker cone.....3 1/4"
flat edge for gluing surround to speaker 1/8:

Why do people refer to these as 4.5" speakers???
fberger
Also check:

Speakerworks

Midwest Speaker Repair

Simply Speakers

Decware

Newfoam

I refoamed a pair of 6.5" EPI woofers several years ago. It took me a couple of hours and was pretty simple. The speakers still work fine.
Non of these places could help. The SD 300ti midrange is evidently a very odd size. The speaker itself is quite small relative to the frame. Not to worry, though. I found a local (Baltimore) guy that says he can fabricate a surround if necessary, by cutting and gluing pre-fabricated surrounds. Will take them to him. Also a California place said the same, but I would have ship them.
Hi,
I also need foam surrounds for my 300Ti mids. I measured the surrounds while still attached to to the basket and cone, with a dial caliper, and the O.D is 4.5" and I.D is 2.875". That will allow a 3/16 overlap on the cone if the cone O.D. is 3 1/4" Does that seem right?

Thanks,
henrylr