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In Reply to: any thoughts on adding magnets to posted by snkby on December 14, 2002 at 14:44:15:
What's usually being done is adding a cancellation magnet to the rear of the driver magnet to cancel EMI fields to place the speaker close to a TV. It is not generally done to increase the flux of the magnet for higher sensitivity as placing another magnet on the back of the first simply won't have that effect.
Follow Ups:
the progression of adding the magnets with i believe a woofer tester.im well acqainted with the concept of bucking magnets and how/why they are used.
he talked about how the q of the driver changed with more magnets added.
the magnets were not epoxied but simply placed around the back of the speaker magnet.
theory is great but reality is better.
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