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SKEEMASK

External Ports

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if u have a regular internal port that needs to be say for example 20" long to get a 30hz fq.....would it still need the same 20" length if it was external to get the same 30Hz tuning? I know internal volume would be more considering less displacement

Edited by SKEEMASK

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Yes it still needs to be the same length, because the sub will still see the same volume. It's just that instead of having to build the box to 5 cubes with the internal port, for example, you could only build it 4 cubes because you don't have to account for port displacement inside the box.

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