Tuning Frequency

[mbarber25 29]

Can anybody tell me how much of the port length I need to get rid of in order for this box to be tuned to 32hz?

Sound Solutions Audio - 15" XCON Optimal Ported Enclosure

Please and thanks!

[mbarber25 29]

Being impatient. Bump.. kinda wanna start the build today.

[jcarter1885 995]

I wish I could help you man but I cant so ill help to get this thread answered.

[NB50 206]

Can't download the sketchup file.

[mbarber25 29]

I wish I could help you man but I cant so ill help to get this thread answered.

Can't download the sketchup file.

Unreliable Technology FTW.

[jcarter1885 995]

[Kanaworm$ 292]

Just rough math .... 30hz tuning looks to be 31.125" length. If you want 32hz you will need roughly 29" so take off 1.25"

[mbarber25 29]

Just rough math .... 30hz tuning looks to be 31.125" length. If you want 32hz you will need roughly 29" so take off 1.25"

thanks

[mbarber25 29]

cannot find 1" MDF...

[Kanaworm$ 292]

cannot find 1" MDF...

Sure you can, two sheets of .5" laminated together will work! ....

[mbarber25 29]

cannot find 1" MDF...

Sure you can, two sheets of .5" laminated together will work! ....

lol

how bad of an idea would it be to just go with the 3/4"?

[Kanaworm$ 292]

Not bad at all!

Once you double baffle it will be fine. If you feel you need more bracing you could add threaded rod or wood dowels without taking up much internal volume.

[mbarber25 29]

nice okay, thanks.

[NB50 206]

That design only calls for 3/4". And your going to need to take off more then 1" of port length to raise the tuning to 32hz. From my rough calculations it should be more like 6.75" of port length taken away. Which would put the box at 4.26ft^3 @ 31.86hz.

[Dee 0]

Not bad at all!

Once you double baffle it will be fine. If you feel you need more bracing you could add threaded rod or wood dowels without taking up much internal volume.

I am building my first box too but for a Q 18. Where would you find some threaded rods/ wood dowels? Home Depot/ Lowe's? If so how much do they cost? How would i go about calculating the volume displaced by them?

Thanks

[Sir-Lancelot 216]

Yeah lowes or HD will have it. YOu can also use some scraps of MDF from your box build. YOu want to tie the top to the bottom and the front to the back.

Edit to add if you use scrap MDF make sure to round the corners.

All the way to the bottom right above the pic of the T-Nut.

Brace volume calculator

[Dee 0]

Yeah lowes or HD will have it. YOu can also use some scraps of MDF from your box build. YOu want to tie the top to the bottom and the front to the back.

Edit to add if you use scrap MDF make sure to round the corners.

All the way to the bottom right above the pic of the T-Nut.

Brace volume calculator

Thanks