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复杂的东西,要看用途设计及单元设计
Generally speaking, the small voice coils weigh less and therefore have better acceleration factor and higher efficiency.
The bigger voice coils have better power handling. For some customers it does not matter that the moving system weighs a lot, as they use the drivers for bass only <100Hz.
For car subwoofers, there is a tendency to use stiff suspended drivers, because they are somewhat independent on box-size, but these drivers need a lot of magnetic power, which is why the big magnets have their justification. Otherwise you are right – the small magnets are often sufficient. |
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