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Message: <blockquote data-quote="helotaxi" data-source="post: 7059389" data-attributes="member: 550915"><p>Apples and oranges.  The mechanical limit of concern in a sealed box is the Xmech.  The mechanical limit of concern in an SPL ported system is the actual integrity of the cone and not excursion related at all.  The question was about a sealed box where output is entirely determined by cone displacement.  If the displacement limit is reached, nothing will increase output further.  In a ported system the additional power where cone movement is already minimal actually does increase the output by increasing the movement of the cone some and greatly increasing the energy in the port.  Excursion limits never come into play.</p></blockquote><p></p>

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