Hi. Because the shape I am giving to an enclosure, I need to bend the port section, because I want it just in the same board where subwoofer mount is. Otherwise because the length of the port, it only can be located at one side, which I don't like.
I use to use this website for enclosure calculations, and just wondering if can get something similar but for L slot ports. I actually found some links here in the forum, but they were offline.🙁 Thanks.
mh-audio.nl - Vented System
I use to use this website for enclosure calculations, and just wondering if can get something similar but for L slot ports. I actually found some links here in the forum, but they were offline.🙁 Thanks.
mh-audio.nl - Vented System
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What you guys think about this? I also came with this idea. The red section is just all the port area section that enclosure needs to be tuned, green section is the same slot port, but dramatically increased, so its only purpose will be to redirect the air flow to the front, without changing sound frequency, that's why that chamber/section is significantly bigger than port area.
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Try modelling it in HR or in Leonard Audio Transmission Line. Effectively, you've built a flared port or a horn of some type..... I think....
Don't make the cross section of the green area larger than the red area. Doing so will make an ineffective horn and a port with unknown tuning. The correct end correction factor for a slotted port is a little bit over 2. The 90 degree bend has virtually no affect.
http://www.diyaudio.com/forums/mult...ion-factor-question-clarification-needed.html
http://www.diyaudio.com/forums/mult...ion-factor-question-clarification-needed.html
Before posting this, I was not sure about how to properly bend the port, so I came with the idea shown above. At first I was measuring the walls of the port, but then I understood that the right way is measuring the invisible center line of the port, so there should be the necessary total length that enclosure needs to be tuned. Now I discarded the idea shown above, which I don't need it.
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... then I understood that the right way is measuring the invisible center line of the port....
You are correct. Hope you build the enclosure, post your comments on sound quality, and keep up with DIY activity...regards, Michael
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