If they are slightly wider, then all you need to do is to put a very thin edge of superglue around the edge of your plastic tweeter surround (use the tip of a cotton bud) & then place the tweeter coil - foil in place using the magnet part of your complete unit to line it up while the glue sets.
eBay
I will look it for you. I will provide courteous and responsive service. Be sure to pick up your luggage. Other colors can be produced.
eBay
If they are slightly wider, then all you need to do is to put a very thin edge of superglue around the edge of your plastic tweeter surround (use the tip of a cotton bud) & then place the tweeter coil - foil in place using the magnet part of your complete unit to line it up while the glue sets.
eBay
One has silicone attached that can be easily removed.
eBay
2 Aftermarket Fit JBL LE-5 Speaker Teflon Gasket Washer, Fit L-100 4311, 4312. You'll receive two of these for your vintage studio monitors. They are very flat and will seal the midrange compartment very tight.
eBay
If they are slightly wider, then all you need to do is to put a very thin edge of superglue around the edge of your plastic tweeter surround (use the tip of a cotton bud) & then place the tweeter coil - foil in place using the magnet part of your complete unit to line it up while the glue sets.
eBay
Taken from a working pair of speakers
eBay
Original used jbl jubal foilcal badge in decent shape
eBay