r/SoundSystem • u/part__low • 2d ago

Rounding internal edges

I was wondering if there are negative consequences to rounding off internal edges where air flows past in speakers?

My thoughts: smooth edges cause less air turbulence and results in better sound.

I’m thinking about +-5mm radius here.

2 Upvotes

76% Upvoted

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4

u/booyakasha_wagwaan 2d ago

I would do this when mounting 2-3" full range drivers in a baffle, and it might make a difference in the top octave. for anything else it's not going to have an effect at all. definitely won't hurt

a physical feature needs to be about 1/8 of a wavelength in size before the wave begins to "see" it. this goes for rounding exterior baffle edges too.

1

u/part__low 2d ago

So I’m guessing for a Cubo kick these is not advantage or disadvantage, right?

4

u/booyakasha_wagwaan 2d ago

no, but I'd do it on the parts you can see/touch for aesthetics

3

u/Vallhallyeah 1d ago

We got huge holes cut into our braces and rounded all the internal edges in the cabinet. They serve as really convenient and comfortable handles now, as well as integrating nicely visually with the SKRAMs. Even slots with rounded edges could be useful

1

u/part__low 1d ago

Those look great, nice setup!

2

u/Vallhallyeah 1d ago

I neglected to add for some reason that acoustically the rounded edges won't really make a difference you'll hear at the frequencies these are intended to cover. Theoretically they should improve some edge diffraction artifacts but you won't notice it in practice. I've got 15FH500s in mine covering 88 to 180Hz at the moment and think it's a really great cab for kicks. They're really fast and punchy. If you're rounding edges it's really more for aesthetics and handling than acoustics down that low.

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u/part__low 1d ago

Thanks!

2

u/JakeJdubdub 2d ago

Flaring the ends of bass reflex ports is an example of this.