I have come across a brief paper on compensating for the apparent change in length when folding a transmission line.
It suggests narrowing the path at the corner either by placing a baffle at the inside of the bend or by cutting the outside corner.
I wonder whether someone has tried this in their speaker designs?
Here is the link. The references are worth a read if you can follow the maths, unfortunately they are behind paywall.
It suggests narrowing the path at the corner either by placing a baffle at the inside of the bend or by cutting the outside corner.
I wonder whether someone has tried this in their speaker designs?
Here is the link. The references are worth a read if you can follow the maths, unfortunately they are behind paywall.
Bjorno did a duct bend theory write-up: https://www.diyaudio.com/forums/att...42-tapped-horn-subwoofer-bends-hornsx-rev-jpg
That said, the outside corners act as traps to limit unwanted HF, reducing stuffing requirements, so maintaining all the BW through bends is strictly for wide range folded horns.
That said, the outside corners act as traps to limit unwanted HF, reducing stuffing requirements, so maintaining all the BW through bends is strictly for wide range folded horns.
Ive done this now to a roar qw pipe recently . Since ap2 has been added to the TH sim. Its also been done by Brian Steele as a mid pipe orifice e/contriction. He has documented his on his website. Its a good read.
Nice one. Im gonna link that for the FB group
If you get bored, theres mouths to feed with pieces of knowlege over there.
Its slow, And hard to come up with material. dIY is melting into easier to build, funner to dsp and play with the real box(room).. dump all ypur ideas and maybe theyll emerge as wood you can vicariously participate in😀
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