Home Speaker Asylum

General speaker questions for audio and home theater.

RE: Sealed vs Ported cabinets

Tomservo has covered the subject very well, so I'll just add a couple of comments.

With a ported cabinet, the designer has greater freedom to shape the low-end response in anticipation of room acoustics and/or amplifier damping factor. The response shape can be adjusted after the enclosure has been built by changing the port length (and/or diameter), something that could even be done by the end-user.

Note also that high efficiency woofers usually have parameters that will not give good bass extension in a sealed box no matter how large, so if you equate "efficiency" with "tube-friendly" your choices will be dominated by ported (or possibly horn-loaded) speakers instead of sealed boxes.

Duke


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