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<blockquote data-quote="audioholic" data-source="post: 7605087" data-attributes="member: 549629">You had me right up until you said &#039;not as quickly&#039;. Again, you will gain cone speed by one of two ways, increasing the freq (so it cycles more times per second), or by increasing the xmax (so it must move further each cycle, thus requiring more cone speed for a given frequency).Also, I already discussed differences in BL force between a traditional motor design (overhung) like a 9500, and a BL optimized motor like an LMS. The LMS may have less advertised motor force (when the coil is centered in the gap), but the overhung design will lose BL faster than the optimized motor, and thus may have LESS motor force at say 25mm xmax. It certainly will have less above 30mm, since even though DD does not advertise them, Im confident the 9500 does not have 30mm xmax. This is why so many of the ultra long excursion subs ARE BL optimized, instead of simply putting some stupidly massive overhung motor on it so it doesn&#039;t run out of steam in extreme excursion situations. Not trying to confuse the topic, but that is worth noting imo.</blockquote>

[QUOTE="audioholic, post: 7605087, member: 549629"] You had me right up until you said 'not as quickly'. Again, you will gain cone speed by one of two ways, increasing the freq (so it cycles more times per second), or by increasing the xmax (so it must move further each cycle, thus requiring more cone speed for a given frequency). Also, I already discussed differences in BL force between a traditional motor design (overhung) like a 9500, and a BL optimized motor like an LMS. The LMS may have less advertised motor force (when the coil is centered in the gap), but the overhung design will lose BL faster than the optimized motor, and thus may have LESS motor force at say 25mm xmax. It certainly will have less above 30mm, since even though DD does not advertise them, Im confident the 9500 does not have 30mm xmax. This is why so many of the ultra long excursion subs ARE BL optimized, instead of simply putting some stupidly massive overhung motor on it so it doesn't run out of steam in extreme excursion situations. Not trying to confuse the topic, but that is worth noting imo. [/QUOTE]

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