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Low Earth Orbit
DIY Audio
subwoofer advise
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<blockquote data-quote="Carl Klinkenborg" data-source="post: 215699" data-attributes="member: 12770"><p>Nice work. It is difficult to determine the interior port profile from the photos, so apologies in advance if you have already done this! The port should have similar flaring on the inside to make the airflow as symmetrical as possible - it is not a horn - otherwise it is distinctly non-linear, introducing harmonic distortion and port rectification which will push the cone away from its rest position on long bass notes, reducing the available Xmax.</p></blockquote><p></p>
[QUOTE="Carl Klinkenborg, post: 215699, member: 12770"] Nice work. It is difficult to determine the interior port profile from the photos, so apologies in advance if you have already done this! The port should have similar flaring on the inside to make the airflow as symmetrical as possible - it is not a horn - otherwise it is distinctly non-linear, introducing harmonic distortion and port rectification which will push the cone away from its rest position on long bass notes, reducing the available Xmax. [/QUOTE]
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