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| Re: 7Pi Build 2014 [message #80490 is a reply to message #80489] |
Mon, 15 September 2014 12:02   |
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Wayne Parham
Messages: 18835
Registered: January 2001
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Illuminati (33rd Degree) |
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We just don't want the cone to touch the mounting plate, or anything else for that matter. There is enough clearance between cone and mounting plate to prevent them from touching, as long as the gasket isn't excessively compressed or removed. The xmax is around 2mm-3mm (depending on the driver chosen), but the gasket is larger than that.
As an aside, the mechanical limit is much greater than that, so if you were going to throw a hundred watts at these speakers, the cone could strike the plate. So you can add a second gasket in front of the built-on one, if you want to. We sell them for that purpose. But really, these are hifi speakers, and probably wouldn't ever be pushed that hard. They'd be way over xmax, and that's not what you ever want to do.
My guess is your problem isn't from cone-to-plate interference. That would only happen at very high volume levels. It's more likely something else, like bracing or something inside the cabinet rubbing against the cone.
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