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3D3DTitanium headphone speaker cone.
This is a very shiny speaker cone from a pair of headphones prominently labeled as having titanium speaker cones. I have not tested the material, but it certainly looks like it could be genuine titanium, and I have no reason to doubt it.
Source: Radio Shack
Contributor: Theodore Gray
Acquired: 24 March, 2009
Text Updated: 24 March, 2009
Price: $40
Size: 2"
Purity: 94%