building a subwoofer with a passive radiator - AVS Forum | Home Theater Discussions And Reviews
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post #1 of 4 Old 09-17-2019, 03:41 PM - Thread Starter
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building a subwoofer with a passive radiator

Cana subwoofer be built with an active subwoofer as the motor to be used with passive radiators on each side in a sealed box?

I love the sound of passive radiators. It gives layers and layers of Bass which an active aub cannot do on it's own. I want to use it in a seperate enclosure from the bookshelf speakers that I have.

Hells, I am even thinking of adding a couple of woofers to the project.
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post #2 of 4 Old 09-17-2019, 04:19 PM
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Enclosures with PR's act as ported. You can use a small box, no ports or resonance issues. You HAVE to use a driver with a motor to push the PR's.

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post #3 of 4 Old 09-18-2019, 08:01 AM - Thread Starter
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Thanks for the info. I have a couple of active subwoofer drivers I plan to use. I am figuring two pasaives on opposite sides with one active sub in each cabinet (I plan to make 2 cabinet's since I have two sub drivers) with the active sub connecting to an amp. The cross-over will be a dsp.

Any thoughts on bracing and cabinet dimensions since it will be a closed cabinet? I know, I have to look at this more on the web for further info.

I figure it would be interesting to find out if anyone haa personal experience using a pr/sub cabinet design.
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post #4 of 4 Old 09-19-2019, 02:04 AM
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You need to download WinISD and you can model it. The link below is a cliff notes of sorts. Doing it will give you a better understanding which you seem to want. I don't have any personal experience wit PR subs.




http://audiojudgement.com/how-to-tune-passive-radiator/
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