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<blockquote data-quote="Buck" data-source="post: 8906460" data-attributes="member: 591582">Only in, how do you say it, non-loading enclosures will having more excursion or cone area directly lead to more bass.&nbsp; So like IB setup and transmission lines and horns, usually those will more directly be affected by cone area * xmax = Vd, because there&#039;s not a loading chamber (closer to free air).&nbsp; But, for example you can have a horn-wall, where there&#039;s so much bass inside of vehicle even the line behind the subs start loading more like a ported box and you can get mechanical air support to dump more power in.&nbsp;&nbsp; People do tapped horns too for more cone-loading, that&#039;s part of it.&nbsp; Scale matters, but just with a ported box, xmax doesn&#039;t really equate to more bass or even lower bass.&nbsp; It can but not always, due to the way energy dumps into a loading chamber.[ATTACH=full]67710[/ATTACH][ATTACH=full]67711[/ATTACH]So like when you follow the path from the rear of the cone towards the exit of the box, to me and my studies, whenever line impedance is greater at mouth than at throat (small mouth big throat), that&#039;s when you start getting extra pressure to support the cone inside the entire enclosure as a whole, such as how a tapered t-line is a lot like a ported box, as the area behind the subs is a much larger cross sectional area than the port opening/mouth, where there&#039;s a larger restriction/impedance at the mouth that causes chamber loading.&nbsp; When the box gets smaller towards the mouth, it keeps more energy inside, and that matters because you&#039;re creating a standing wave.[ATTACH=full]67719[/ATTACH]</blockquote>

[QUOTE="Buck, post: 8906460, member: 591582"] Only in, how do you say it, non-loading enclosures will having more excursion or cone area directly lead to more bass. So like IB setup and transmission lines and horns, usually those will more directly be affected by cone area * xmax = Vd, because there's not a loading chamber (closer to free air). But, for example you can have a horn-wall, where there's so much bass inside of vehicle even the line behind the subs start loading more like a ported box and you can get mechanical air support to dump more power in. People do tapped horns too for more cone-loading, that's part of it. Scale matters, but just with a ported box, xmax doesn't really equate to more bass or even lower bass. It can but not always, due to the way energy dumps into a loading chamber.[ATTACH type="full" alt="IMG_9376.jpeg"]67710[/ATTACH] [ATTACH type="full" alt="IMG_9375.jpeg"]67711[/ATTACH] So like when you follow the path from the rear of the cone towards the exit of the box, to me and my studies, whenever line impedance is greater at mouth than at throat (small mouth big throat), that's when you start getting extra pressure to support the cone inside the entire enclosure as a whole, such as how a tapered t-line is a lot like a ported box, as the area behind the subs is a much larger cross sectional area than the port opening/mouth, where there's a larger restriction/impedance at the mouth that causes chamber loading. When the box gets smaller towards the mouth, it keeps more energy inside, and that matters because you're creating a standing wave.[ATTACH type="full" alt="IMG_9219.gif"]67719[/ATTACH] [/QUOTE]

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