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Aren't passive radiators out of phase?

Passive radiators seem like a great idea, but they must be out of phase with the driver. Yet, you see them on some pretty good speakers, such as the Sunfire subs. All I can think is they provide a spring-board, storing energy for the driver. Still, any sound produced by the PR is out of phase though. Any thoughts?
jhimnsue

Showing 2 responses by bishopwill

bishopwill
369 posts
 
Sean (or anybody knowledgable about such things),

At what cabinet size and/or radiator size does hysteresis become an issue? I would think that in a big cabinet or with a big passive radiator, the response of the radiator to movement of the active would begin to lag, resulting in some potentially smeary sound. Is this an issue? Inquiring minds wanna know these things....

will
bishopwill
369 posts
 
Great info, Bear! Thanks for sharing.
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