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Car Audio Equipment
Subwoofers
800W to 450W RMS Sub?
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<blockquote data-quote="helotaxi" data-source="post: 1601359" data-attributes="member: 550915"><p>Impedance isn't a constant. The nominal imp. is pretty much the lowest you will usually get from a driver but it will rise depending on frequency and the enclosure. The peaks in imp are usually greater in a ported box.</p><p></p><p>As far as power to move a sub, it takes more power to get large excursion out of a ported box compared to a sealed one unless you feed it frequencies well below the tuning freq of the emclosure. The inertia of the air moving in and out of the port damps the cone much more than the fixed amount of air in a sealed box.</p></blockquote><p></p>
[QUOTE="helotaxi, post: 1601359, member: 550915"] Impedance isn't a constant. The nominal imp. is pretty much the lowest you will usually get from a driver but it will rise depending on frequency and the enclosure. The peaks in imp are usually greater in a ported box. As far as power to move a sub, it takes more power to get large excursion out of a ported box compared to a sealed one unless you feed it frequencies well below the tuning freq of the emclosure. The inertia of the air moving in and out of the port damps the cone much more than the fixed amount of air in a sealed box. [/QUOTE]
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Car Audio Equipment
Subwoofers
800W to 450W RMS Sub?
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