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In the Forum: Audio Discussions
In the Thread: Natural Remedies for Sick Speakers?
Post Subject: Flat cone geometry?Posted by haralanov on: 8/15/2010
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Paul, the problem could be unsolvable if this peak is due to cone geometry. Flat cones in general behave very good up to a certain frequency, but they have strong standing wave mode (its magnitude depends of the internal damping in the cone) above that frequency which is dependent of the cone size and it’s thickness. If your Reps driver uses the same paper as the original Lowthers – you are in trouble (I wish I was kidding, but I’m not). It is very thin and weak and it can’t resist the fast acceleration of the voice coil above 2-3kHz. The ribs of the cone improve the situation, but not much. I took a photo of a friend’s lowther – is the main cone the same like yours?


lowther flat cone.JPG


Best regards,

Haralanov

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