Dynaudio - You might have noticed that our soft dome tweeters have a very thin coating. A transparent layer of specific glue called DSR – Dynaudio's secret recipe. Sorry we can't tell
Seas Prestige 22TFF - H1280-06 7/8'' Soft Dome Tweeter - ...
Tweeter Speaker - Hifi Soft Dome Silk Film Treble Loudspeaker | Fruugo PT