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Features of the Artisan PH-BT2020 Portable Bluetooth Speaker by Photive include 40 mm drivers that give incredible sound and a battery that provides 8 hours of music entertainment.

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What is this movable diaphragm in the bottom of the speaker for?

Taking this speaker apart to put in a Fanny pack and I was curious what the diaphragm in the bottom does for the speaker.

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It’s a “passive radiator”: https://en.wikipedia.org/wiki/Passive_ra...)

I assume this was chosen over a ported design because it doesn’t require a hole where water could get in. :)

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Ok

its a passive subwoofer

Your Welcome.

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Matt Jackson 将永远感激不已
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