Hi guys,
Hope you all are doing well.
I am building 12" subwoofers, one for my stereo system which is a sealed sub and other one is for home theatre system which is a slot ported design.
Sub RMS is 300w. So do I need to add heavy bracing for both. And how can I calculate bracing volume from internal volume. Is there is any tool's to ease the process.
Sealed internal volume is 48.5 litre.
Ported one is 73 litre with tuned for 28hz. Port area is 3" X 14.5" X 48"
Please suggest any solutions.
Hope you all are doing well.
I am building 12" subwoofers, one for my stereo system which is a sealed sub and other one is for home theatre system which is a slot ported design.
Sub RMS is 300w. So do I need to add heavy bracing for both. And how can I calculate bracing volume from internal volume. Is there is any tool's to ease the process.
Sealed internal volume is 48.5 litre.
Ported one is 73 litre with tuned for 28hz. Port area is 3" X 14.5" X 48"
Please suggest any solutions.
Do you mean you want to calculate how much bracing you should use, or calculate the displacement volume of the bracing you plan on adding?
If it's the latter, then it's fairly simple; multiply the dimensions of each bracing component in cm (e.g. a plate of 30x10x2cm = 600cm^3), then divide by 1000 for litres => 600cm^3 / 1000 = 0.6 litres.
If you're designing in CAD then tools such as Solidworks would definitely calculate the volume of material for you. SketchUp may even do it (though I can't recall for certain).
If it's the latter, then it's fairly simple; multiply the dimensions of each bracing component in cm (e.g. a plate of 30x10x2cm = 600cm^3), then divide by 1000 for litres => 600cm^3 / 1000 = 0.6 litres.
If you're designing in CAD then tools such as Solidworks would definitely calculate the volume of material for you. SketchUp may even do it (though I can't recall for certain).
Thanks
Yes, I want to calculate how much bracing I should use because this is my first DIY project, I don't have any exp in speaker building. Is there any ratio for bracing? what type of bracing is needed (like window type). Is necessary to add a rounded edge for all hard corners.
Yes, I want to calculate how much bracing I should use because this is my first DIY project, I don't have any exp in speaker building. Is there any ratio for bracing? what type of bracing is needed (like window type). Is necessary to add a rounded edge for all hard corners.
Usually if you can't do a FEM (finite element) analysis one vertical and one horizontal in a cubic shape enclosure.
Cabinet bracing 101
Loudspeaker Cabinet Bracing: A Detailed Look on Do's and Dont's | Audioholics
And here, pay attention not changing the internal volume of a speaker and considering the extra volume.
Bracing cabinet lost the bass
Cabinet bracing 101
Loudspeaker Cabinet Bracing: A Detailed Look on Do's and Dont's | Audioholics
And here, pay attention not changing the internal volume of a speaker and considering the extra volume.
Bracing cabinet lost the bass
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