After the question on speakers I was curious what the black color in speaker
paper was,what is it's purpose?Does it affect the sound when it fades?I know
lots of exposure to light fades it.My midranges in my Rockola have turned a
light shade of brown.I've seen car speakers that turned nearly white and became
very brittle and cracked.So I assume the more it fades the more brittle the
cone will become.Is there some kind of chemical that will restore speakers or
they just reconed once the cone becomes too brittle to be servicable.