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Message: <blockquote data-quote="helotaxi" data-source="post: 4718517" data-attributes="member: 550915"><p>A passive radiator system doesn't stress the powered driver any more than a ported setup does.  It has the same effect and works in a similar manner to a port.  The suspension and mass of the PR creates a delay in the PR movement that brings it into phase with the primary driver.  It allows you to tune a small box low without needing the space taken up by the long port that would ordinarily be required for a low tuning.  The main drawback is that you usually need about 2x the cone area/swept volume of the driver in passive radiators, so, for example  a 10" sub might require 2x10" radiators or 1x15" radiator.</p></blockquote><p></p>

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