If the input wire leads are not slapping the cone, leave them be and enjoy. If you can clean the front side up, plus doing no damage to the cone. You can find a grey silicone at the auto parts store. Maybe even close to the same color
Good luck
Good luck
Main point is *why* did that fold/crack appear.
If cone bent there in "normal" use, say prolonged high power lots of bass, and couldn´t stand it, that cone is already compromised.
To boot by position and orientation, that os a high stress area, near the voice coil which is pushing a large heavy cone past that point.
That is a structural failure, not a cosmetic one, so flexible silicone paste will not help.
You need to recover a piece of cone from an old speaker roucghly matching curvature and shape, glue one strip from the outside, another from the inside, using white vynil carpenter´s glue.
The strip should be some 8 to 10 mm wide and some 10mm longer than visible crack, to supply adequate reinforcement.
Ugly but who cares? , it needs to support that weak spot.
Imagine a cast around a broken leg, bulky ugly but what´s needed to support it.
Second picture is dark, can´t see the crack , but tinsel wires look torn away from cone or something.
If you see any problem there, repeat picture with better illumination.
If cone bent there in "normal" use, say prolonged high power lots of bass, and couldn´t stand it, that cone is already compromised.
To boot by position and orientation, that os a high stress area, near the voice coil which is pushing a large heavy cone past that point.
That is a structural failure, not a cosmetic one, so flexible silicone paste will not help.
You need to recover a piece of cone from an old speaker roucghly matching curvature and shape, glue one strip from the outside, another from the inside, using white vynil carpenter´s glue.
The strip should be some 8 to 10 mm wide and some 10mm longer than visible crack, to supply adequate reinforcement.
Ugly but who cares? , it needs to support that weak spot.
Imagine a cast around a broken leg, bulky ugly but what´s needed to support it.
Second picture is dark, can´t see the crack , but tinsel wires look torn away from cone or something.
If you see any problem there, repeat picture with better illumination.
To me it looks too high excursion from low frequency overload or transient.
I have seen the voice coil cutting the whole circle.
This happens when you do not use a subsonic filter. Below the f3 the excursion rises very fast in vented enclosures.
I would re-cone the driver if possible.
I have seen the voice coil cutting the whole circle.
This happens when you do not use a subsonic filter. Below the f3 the excursion rises very fast in vented enclosures.
I would re-cone the driver if possible.
