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There are two types of subwoofers.

1. Active subwoofers

2. Passive subwoofers

An active subwoofer will have a built-in amplifier.

A passive subwoofer doesn't have a built-in amplifier which will require the use of an amplifier, the use of a power source.

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12y ago
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13y ago

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Q: If you have a sub woofer do you need an amplifier?
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