Voice Coil & Former
Zooming in on the voice coil part reveals the "former" is made using aluminum because it is light weight, heat conductive and cost effective. The circular tube Itself gives an overall very rigid form. Thank goodness the circular form is in harmony with the magnet's flux field.
Imagine it was square in shape. I wonder how would the magnet's flux interact with a square coil?
Ever wonder why woofers looks like woofers? Why can't a woofer look like a dome, instead of a cone? Was the initial design made by a genius or was it merely by chance some 100 years ago?
Anyway, lets move on.
Sound Representation on Scientific Terms
3D movement of 13.8Hz
2D movement 13.7Hz
But no speaker is perfect
Because of Cone Break-up
Radiation is frequency dependent
Therefore no speaker has flat frequency response
Why do we need flat frequency response?
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