My Infinity Kappa 7.1 polydomes when I got them and after I cleaned them : r/vintageaudio
Infinity" POLYDOME, "Midwest Speakers" cloth fabric dome, "Infinity" with cloth fabric dome - YouTube
Infinity Kappa 7 Speakers, Tested Great Condition, Need New Midrange | eBay
Glanzmann High-End - Here we got a broken Polydome midrange speaker from the legendary Infinity Kappa 6.2i. I'll have s look, what we can do with it to bring the speaker back
1x New Polydome Compatible for Infinity Kappa Series | eBay