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Car Audio Help
Enclosure Design & Construction
t line enclosure
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<blockquote data-quote="bbeljefe" data-source="post: 8178976" data-attributes="member: 655960"><p>Another advantage of ¼ wave transmission lines is that they're super easy to calculate. Of course, that's offset by the difficulty in designing the box to fit in your vehicle but on balance, I think it's well worth the difficulty.</p><p></p><p>They play well throughout the sub bass region and normally extend to about one octave below driver Fs before going -3dB... which is super low compared with the response of a conventional ported enclosure tuned in the low 30s.</p><p></p><p>Drivers with a Qts above 7 and a Qes below 4 are best suited for them but any sub will perform its best in a t-line.</p><p></p><p>Here are some resources on them:</p><p></p><p><a href="http://www.t-linespeakers.org/" target="_blank">Transmission Line Speakers</a></p><p></p><p><a href="http://www.quarter-wave.com/" target="_blank">Quarter Wavelength Loudspeaker Design</a></p><p></p><p>Here are a few I've built:</p><p></p><p><a href="http:////forums/car-audio-build-logs-cars-trucks-suvs/587392-jbl-gto-10-%BC-wave-t-line.html" target="_blank">http://www.caraudio.com/forums/car-audio-build-logs-cars-trucks-suvs/587392-jbl-gto-10-%BC-wave-t-line.html</a></p><p></p><p>[MEDIA=youtube]FN-s4efefZo[/MEDIA]</p></blockquote><p></p>
[QUOTE="bbeljefe, post: 8178976, member: 655960"] Another advantage of ¼ wave transmission lines is that they're super easy to calculate. Of course, that's offset by the difficulty in designing the box to fit in your vehicle but on balance, I think it's well worth the difficulty. They play well throughout the sub bass region and normally extend to about one octave below driver Fs before going -3dB... which is super low compared with the response of a conventional ported enclosure tuned in the low 30s. Drivers with a Qts above 7 and a Qes below 4 are best suited for them but any sub will perform its best in a t-line. Here are some resources on them: [URL="http://www.t-linespeakers.org/"]Transmission Line Speakers[/URL] [URL="http://www.quarter-wave.com/"]Quarter Wavelength Loudspeaker Design[/URL] Here are a few I've built: [URL="http:////forums/car-audio-build-logs-cars-trucks-suvs/587392-jbl-gto-10-%BC-wave-t-line.html"]http://www.caraudio.com/forums/car-audio-build-logs-cars-trucks-suvs/587392-jbl-gto-10-%BC-wave-t-line.html[/URL] [MEDIA=youtube]FN-s4efefZo[/MEDIA] [/QUOTE]
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