KEF C40 Question

[baco99]

I have a pair of KEF C40's that sound fine to me. But the tweeter "doping" has started to crack, hairline cracks on the surface, but the dome itself is fine. How detrimental is this to the speaker?

 

[1tumbleweed]

Interesting...

I've never seen a C40 tweeter with doping, although I've seen it on other KEF tweets. My C10s have (apparently) the same tweet, no doping. And I was just looking at a pair of 40s over the weekend, and the tweets looked just like mine.

I would say it probably won't make much difference; if they still sound OK, they are OK. The doping was probably an attempt to control resonance.

As always, just my opinion, YMMV.