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What is XBL^2?
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<blockquote data-quote="sundownz" data-source="post: 3427980" data-attributes="member: 549523"><p>You cut the top plate into a [ shape and the pole into a ] shape. The cut-out area is referred to as the "rebate" -- this rebate steers the flux towards the two separate gaps on either side of itself to extend the BL field out farther to either side than a motor without the rebate. This creates a flat BL curve and thus less BL distortion and more linear x-max.</p><p></p><p>Some people get the idea that XBL^2 actually loses BL, but it really does not, it steers it around... in some motors I've drawn up in FEA I was able to get a higher BL with XBL^2 than with other "standard" topologies. Even in motors where the "at rest" BL is a bit lower, the average BL over the useful range of the speaker will be higher.</p></blockquote><p></p>
[QUOTE="sundownz, post: 3427980, member: 549523"] You cut the top plate into a [ shape and the pole into a ] shape. The cut-out area is referred to as the "rebate" -- this rebate steers the flux towards the two separate gaps on either side of itself to extend the BL field out farther to either side than a motor without the rebate. This creates a flat BL curve and thus less BL distortion and more linear x-max. Some people get the idea that XBL^2 actually loses BL, but it really does not, it steers it around... in some motors I've drawn up in FEA I was able to get a higher BL with XBL^2 than with other "standard" topologies. Even in motors where the "at rest" BL is a bit lower, the average BL over the useful range of the speaker will be higher. [/QUOTE]
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What is XBL^2?
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