How are linen surrounds treated? Is there any way to re-condition them? One of my woofers seems to make a little noise from the surround when moved slightly in and out by hand. It's definately not from the voice coil. There is no mechanical interference at the surrounds. This seems to be coming from the surround cloth itself. On music it translates to a very very slight buzz at high volumes, only audible when you are right at the cone, but still, now I think I can hear it in my listening position even when I know I can't.
Lightly placing my fingers on the surrounds while playing seems to affect it. Playing with it on my bench it almost seems like the surrounds might be too dry.
Any suggestions?
Jorg