Is it possible have a chamber behind the driver in a T-line enclosure to accommodate the drivers magnet? I have a nice 12" sub but trying to keep the lines sq cm patch close to the sd of the sub while making enough room for the magnet is impossible with this sub. How important is it to keep the patch as close to sd as possible? The best I can do is double baffle the front and gain another 3/4". With just a single baffle the line needs to be 690 sq cm where the Sd is 471 sqcm. I got the drivers required space by taking the diameter of the driver times the mounting depth of the driver plus 1 inch. Am I overthinking this? Sorry if these seem like silly questions. I'm just learning horn building but am very much interested in learning all I can. Thanks. I know the drawing is far from perfect. I'm also trying to learn librecad but the scale is there as far as line width and driver depth. The dotted line was for me to measure length.
EDIT: Thank you for everybody that replied. Surprisingly I wasnt berated by a dozen people but instead got good feedback and learned something. Downside of the internet is once somethhing is out there, its out there. Bad info and all.
EDIT: Thank you for everybody that replied. Surprisingly I wasnt berated by a dozen people but instead got good feedback and learned something. Downside of the internet is once somethhing is out there, its out there. Bad info and all.
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Couldn't you bump the woofer over into the opening beyond the first baffle to create an offset T-line?
Offset the driver more.
The old rules for lines to follow SD size
has long been abandoned.
These older un tapered line design methods usually yielded poor
results. Better software is used to calculate error factors
to taper the line, then add lining to further rid the resonance
from a reflex with a too long port.
The old rules for lines to follow SD size
has long been abandoned.
These older un tapered line design methods usually yielded poor
results. Better software is used to calculate error factors
to taper the line, then add lining to further rid the resonance
from a reflex with a too long port.
Or offset and taper the line.
Like any conventional modern T line design.
Since the efficiency and resonance created by simple older
rule of thumb, AKA wild guessing based on ancient theory
are rather horrendous.
If space is limited such as a car installation.
There is no need for such a long port.
Vehicle cabin gain will exceed the low end extension
of a " T line"
Since basic models will not show the actual " in room" or
cabin response.
Like any conventional modern T line design.
Since the efficiency and resonance created by simple older
rule of thumb, AKA wild guessing based on ancient theory
are rather horrendous.
If space is limited such as a car installation.
There is no need for such a long port.
Vehicle cabin gain will exceed the low end extension
of a " T line"
Since basic models will not show the actual " in room" or
cabin response.
The long skinny box tuned to the length of Fs/4 at the size of the drivers ‘Sd’ sounds like 💩💨 more often then not?
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