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Message: <blockquote data-quote="Immacomputer" data-source="post: 4012673" data-attributes="member: 570419">Absolutely wrong! The tuning point of an enclosure is NOT always the peak point in output from a sub/enclosure system. This is just the point of resonance of the air mass in the port. The sub will have a new point of resonance itself and it will usually be different than the tuning frequency of the enclosure. The tuning point and the size of the enclosure will determine this.Also, the roll off is no where near equal above and below tuning. Below tuning, the port starts to unload. At this point, the enclosure volume looks infinite to the sub and thus can lead to over excursion without any gain in output. Above tuning, however, the air mass begins to act like an enclosure wall causing the speaker to act like it is in a sealed enclosure of the volume of the enclosure.</blockquote>

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