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<blockquote data-quote="audioholic" data-source="post: 7603467" data-attributes="member: 549629">I explained why motor force is critical to an SPL install earlier in this thread. And yes, even the burp machines running DD gear rely on maximizing excursion at (or very near) enclosure tuning to generated the most SPL possible. A sub like an LMS, with less motor force but more excursion potential, will not compete well against a sub with much higher motor force when burping near tuning. But when you play further and further from tuning, the higher excursion potential becomes more and more important.Also worth noting, many high excursion &quot;SQL&quot; subs do not rely on gobs of motor, they use one of the BL optimization methods which means they don&#039;t need as much measured BL force. A (relatively) flat BL curve means the sub does not lose BL as rapidly as a more traditional motor design (such as an overhung motor), as excursion increases and the coil leaves the gap.</blockquote>

[QUOTE="audioholic, post: 7603467, member: 549629"] I explained why motor force is critical to an SPL install earlier in this thread. And yes, even the burp machines running DD gear rely on maximizing excursion at (or very near) enclosure tuning to generated the most SPL possible. A sub like an LMS, with less motor force but more excursion potential, will not compete well against a sub with much higher motor force when burping near tuning. But when you play further and further from tuning, the higher excursion potential becomes more and more important. Also worth noting, many high excursion "SQL" subs do not rely on gobs of motor, they use one of the BL optimization methods which means they don't need as much measured BL force. A (relatively) flat BL curve means the sub does not lose BL as rapidly as a more traditional motor design (such as an overhung motor), as excursion increases and the coil leaves the gap. [/QUOTE]

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