i have an early '60s 15" jensen speaker i'm using for guitars, low power amps, nothing too loud. the speaker is probably only rated for 25 watts max i think. anyway, it sounds fine. when i got it, there were some small holes on the "dust cap"(see pics http://s265.photobucket.com/albums/ii229/nyazzip/), which look like they may be spreading in a radial pattern around the edge of the entire dust cap(note that this dust cap is flat rather than the dome type you normally see- i don't know if maybe there was an outer dome that fell off or what). the material is a very light felty gauzy stuff, almost like the stuff you scrape off the dryer exhaust screen when ya do laundry.
anyway, does anyone have any repair recommendations that wont affect sound too much? or should i just let it deteriorate and not worry about it? i guess my fear is that dust is going to get into the voicecoil housing and eventually, some decade, cause some problems
i'm thinking maybe i can cut it out and slap something else on it, but i don't know what type of fabric or adhesive to use, or if doing so might ruin the speaker.