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DIY & Tutorials
DIY For Audio
These impedance plots look right?
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<blockquote data-quote="Byrd2" data-source="post: 95762" data-attributes="member: 384"><p>Your intuition is correct Roger. </p><p></p><p>When I said cone movement was least at fs, I was meaning in your specific example of a vented cabinet. You tune your cabinets resonant frequency to the drivers fs. There are now 3 parts to your system. The driver, the air in the cabinet, the air in the port. Very simply think about as being similar to one of those kinetic ball-bearing toys. The driver strikes the air in the cabinet, the air in the cabinet then strikes the air in the port. At resonance though the driver is moving in the same direction as the air in the port so a vacuum is created in the enclosure preventing the driver from moving forward as far as if it was completely unloaded.</p><p></p><p>Looking at a driver in free air you will see that the driver does indeed have a peak of amplitude at resonance. Sorry if I caused some confusion there.</p></blockquote><p></p>
[QUOTE="Byrd2, post: 95762, member: 384"] Your intuition is correct Roger. When I said cone movement was least at fs, I was meaning in your specific example of a vented cabinet. You tune your cabinets resonant frequency to the drivers fs. There are now 3 parts to your system. The driver, the air in the cabinet, the air in the port. Very simply think about as being similar to one of those kinetic ball-bearing toys. The driver strikes the air in the cabinet, the air in the cabinet then strikes the air in the port. At resonance though the driver is moving in the same direction as the air in the port so a vacuum is created in the enclosure preventing the driver from moving forward as far as if it was completely unloaded. Looking at a driver in free air you will see that the driver does indeed have a peak of amplitude at resonance. Sorry if I caused some confusion there. [/QUOTE]
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DIY & Tutorials
DIY For Audio
These impedance plots look right?
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