I see a lot of D130 drivers with the aluminum domed dust cap but yesterday I picked up a pair of 16 ohm signature series D130A's and they have the dark grey paper. The cones have the white JBL numbers on the reverse side. Can anyone tell me which D130s are supposed to have aluminum caps and which should be expected to have the paper types? I'm embarassed I don't know this.
Also, what's the impact of having one, two or three tiny tears in the outer ripples where the cone attaches? A friend of mine says its hard to find drivers of this vintage without a couple. Should they be left alone or given a dab of service cement?
Thanks,
Howe