First damage. B&C DE500 |
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fatfreddiescat
Young Croc Joined: 15 October 2010 Location: N.E.Wales Status: Offline Points: 1081 |
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To me that looks like it could be due to running high amounts of boost in the 8K plus region where the diaphragm is no longer working in piston mode, but is flexing. Often if the diaphragm has hit the bung hard, you can see the marks on the diaphagm
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ceharden
The 10,000 Points Club Joined: 05 June 2005 Location: Southampton Status: Offline Points: 11776 |
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That's entirely possible. More unusual on small compression drivers but seen it happen on large format ones where people have boosted them to try and produce frequencies they just can't do.
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studio45
Old Croc Joined: 16 October 2007 Location: United Kingdom Status: Offline Points: 3863 |
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After "several" years, I would say you've probably just hit the MTBF (mean time between failures).
Titanium is nearly magic, but not quite. A certain amount of flexing, and consequent work-hardening of the material, is a normal part of operation - and when the hardness goes past a certain point, poof! Metal confetti. If you were shattering them every month, you would be doing something wrong. Once in several years is not really anything to worry about though. Apart from having to buy a new diaphragm at B+C prices of course ;)
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Studio45 - Repairs & Building Commotion Soundsystem -Mobile PA
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ceharden
The 10,000 Points Club Joined: 05 June 2005 Location: Southampton Status: Offline Points: 11776 |
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B&C prices are a lot more reasonable now Blue Aran have taken over distribution. Proel were completely useless.
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