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Multi-Way Conventional loudspeakers with crossovers

Ports for Bandpass Enclosure
Ports for Bandpass Enclosure
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Old 16th October 2020, 02:11 PM   #11
markbakk is offline markbakk  Netherlands
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Location: Arnhem, NL
With bandpass enclosures it could pay to flare the port. Depends upon the application (with subs it is more likely) but chuffing can be more easily detected because the woofer output itself will be absent.
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Old 17th October 2020, 02:37 PM   #12
presscot is offline presscot  Thailand
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Is the port diameter important? I have planned to build my speaker with triangular ports. Yet, the port area is limited by the cabinet dimension. My friend, who is professional in building car subwoofer, said it isn’t important. Many of his designs had the port diameter or port area for non-circular ports fixed because of the beauty. And he often played with the port length instead. He suggested that the port size be concern for only not to generate turbulence, it is simply keep it as big as possible or at least big enough. This is the only main concern. Is his statement true? Also, what will happen if the port size is too big?

Last edited by presscot; 17th October 2020 at 02:42 PM.
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Old 17th October 2020, 10:57 PM   #13
AllenB is offline AllenB  Australia
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Ports for Bandpass Enclosure
If you go making it too wide, it gets rather long as well. Apart from where to put it, it will also begin to look like a transmission line that favours the midrange. That could be a problem on its own.
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