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Sealed Vs Ported (SQ vs SPL)
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<blockquote data-quote="audioholic" data-source="post: 988663" data-attributes="member: 549629"><p>BL is a measurement of motor force (basically). BL distortion is distortion caused by irregularities in the motor force (which can/will hurt cone control). The flatter a sub's "BL curve", the more constant the motor force is on the cone (and it's motion), which means better control and less distortion output.</p><p></p><p>BL distortion is directly related to cone excursion. The further a sub moves from its enter position, the more of a problem BL distortion becomes, which is where xbl^2 and similar 'BL optimized' motors really shine.</p><p></p><p>Here's a link to Adire's tech briefs that explains it:</p><p></p><p><a href="http://www.adireaudio.com/Files/XBL2TechPaper.pdf" target="_blank">http://www.adireaudio.com/Files/XBL2TechPaper.pdf</a></p></blockquote><p></p>
[QUOTE="audioholic, post: 988663, member: 549629"] BL is a measurement of motor force (basically). BL distortion is distortion caused by irregularities in the motor force (which can/will hurt cone control). The flatter a sub's "BL curve", the more constant the motor force is on the cone (and it's motion), which means better control and less distortion output. BL distortion is directly related to cone excursion. The further a sub moves from its enter position, the more of a problem BL distortion becomes, which is where xbl^2 and similar 'BL optimized' motors really shine. Here's a link to Adire's tech briefs that explains it: [URL="http://www.adireaudio.com/Files/XBL2TechPaper.pdf"]http://www.adireaudio.com/Files/XBL2TechPaper.pdf[/URL] [/QUOTE]
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