I have a 12 inch downward firing partsexpress subwoofer
and i would rather have a sonotube design.
what is the best way to figure out the design for building
the sonotube sub? i want a sonotube because
its smaller footprint should fit behind my couch.
anyadvice would be greatly appreciated. i am looking to
use the driver and amplifier from the partsexpress
sub.
thanks again and i have learned a great deal from just lurking
here.
and i would rather have a sonotube design.
what is the best way to figure out the design for building
the sonotube sub? i want a sonotube because
its smaller footprint should fit behind my couch.
anyadvice would be greatly appreciated. i am looking to
use the driver and amplifier from the partsexpress
sub.
thanks again and i have learned a great deal from just lurking
here.
sonosub
here's a 12" partsexpress Titanic MkII sonosub from ~2001
The hardest part of building is the endcaps, I turned mine on a Shopsmith lathe, but with a large sander you can clean up a jigsaw cut, or you can make a circle template for a router and cut them...
here's a 12" partsexpress Titanic MkII sonosub from ~2001
The hardest part of building is the endcaps, I turned mine on a Shopsmith lathe, but with a large sander you can clean up a jigsaw cut, or you can make a circle template for a router and cut them...
Attachments
thanks for the advice
i'm pretty good with woodworking and my questions are
more towards how do i determine the dimensions of the sonotube?
there must be a formula where you enter the driver charectoristics
and you end up with the tube diameter, length, port diameter
and lenghth.
that is what i am looking for.
thanks again.
my searching skills are not turning up with much.
any recipes on line?
i'm pretty good with woodworking and my questions are
more towards how do i determine the dimensions of the sonotube?
there must be a formula where you enter the driver charectoristics
and you end up with the tube diameter, length, port diameter
and lenghth.
that is what i am looking for.
thanks again.
my searching skills are not turning up with much.
any recipes on line?
You enter the subs characteristics into a sub modelling program to determine the volume needed. (WinISD comes to mind). Then you use the sonotube calculator to determine the diameter and length of tube that you need.
http://www.quux.net/roo/diy/sonosub/sonocalc.html
http://www.quux.net/roo/diy/sonosub/sonocalc.html
win isd
bass box
any number of online calculators
www.google.com
There's a TON of information out there. The volume of a sonotube is 3.14159 X (inner diameter/2)^2 X height.
bass box
any number of online calculators
www.google.com
There's a TON of information out there. The volume of a sonotube is 3.14159 X (inner diameter/2)^2 X height.
Re: thanks for the advice
Heres an excel spreadsheet for this sub... you can replace the params with those for your 12 incher (for the sealed version) and the ported version
michelevit said:i'm pretty good with woodworking and my questions are
more towards how do i determine the dimensions of the sonotube?
there must be a formula where you enter the driver charectoristics
and you end up with the tube diameter, length, port diameter
and lenghth.
that is what i am looking for.
thanks again.
my searching skills are not turning up with much.
any recipes on line?
Heres an excel spreadsheet for this sub... you can replace the params with those for your 12 incher (for the sealed version) and the ported version
Attachments
I recently built a sonotube 12 inch sub that would be described as TL, it was pretty simple, 1/4 wavelength of 33 hz (driver resonence) is aprox 8 feet. I simply siliconed the driver to the tube and filled with dampening material. As I cross over low aprox 60 hz there is no need to place the driver 1/5 length of pipe. It sounds fantastic.
I then installed an 18 inch 98db driver in a 10 ft sonotube, fiberglass fill in a 250 seat cinema. The staff and customers seem to love it.
I have been told that a reponse from 22 hz can be expected but do not understand why.
I then installed an 18 inch 98db driver in a 10 ft sonotube, fiberglass fill in a 250 seat cinema. The staff and customers seem to love it.
I have been told that a reponse from 22 hz can be expected but do not understand why.
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