Has anyone made a speaker from a Stainless Steel Sphere?
You can buy stainless Steel spheres pretty cheaply. I've no idea how thick the material is but I thought it might be possible to use them to build a pair of speakers from.
This is the kind of thing.
Stainless Steel Sphere Garden Ornament Mirror Gazing Globe Floating Ball Outdoor | eBay
You can buy stainless Steel spheres pretty cheaply. I've no idea how thick the material is but I thought it might be possible to use them to build a pair of speakers from.
This is the kind of thing.
Stainless Steel Sphere Garden Ornament Mirror Gazing Globe Floating Ball Outdoor | eBay
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Yes, I've seen both DIY efforts and commercial designs. Can not remember the names.
The ones I heard where decent enough, but it's over 20 years ago, my references at the time might've been a bit "off".
The ones I heard where decent enough, but it's over 20 years ago, my references at the time might've been a bit "off".
Orb audio also use them.
Orb Audio | Orb Audio: Small Speakers For Smart People
Once you have chopped the hole for the drive you will have to figure out how to attach it, you may be able to peen it over to form a flange or bond on a wooden ring (two halves fitting inside to keep it clean), you may also want to line the inside with the acoustic bitumen use in cars.
Two industrial mixing bowls may also work and have a flat for the speaker already, 20l and 25l are available if you need big volumes.
The 28cm sphere has a volume of 11.5l and you will loose a lot of that cutting the flat and the volume of the driver so probably down to 6 or 7l.
Just a couple of thoughts.
Orb Audio | Orb Audio: Small Speakers For Smart People
Once you have chopped the hole for the drive you will have to figure out how to attach it, you may be able to peen it over to form a flange or bond on a wooden ring (two halves fitting inside to keep it clean), you may also want to line the inside with the acoustic bitumen use in cars.
Two industrial mixing bowls may also work and have a flat for the speaker already, 20l and 25l are available if you need big volumes.
The 28cm sphere has a volume of 11.5l and you will loose a lot of that cutting the flat and the volume of the driver so probably down to 6 or 7l.
Just a couple of thoughts.
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Here's how to calculate the volume lost by cutting the flat (or spherical cap) off the sphere:
Spherical Cap Calculator
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