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if a subwoofer has its own plug in does it use power from the reciever as well?

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  • if a subwoofer has its own plug in does it use power from the reciever as well?


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Answer #1 | 19/12 2013 14:11
Yes
Positive: 50 %
Answer #2 | 19/12 2013 15:53
In a home theater system, the sub is generally self-powered and only receives a line-level audio signal from the receiver. An amplifier built into the subwoofer amplifies the line-level signal to drive the speaker or speakers in the subwoofer. Some subs have speaker level inputs and outputs. If you use these, the speaker level output from your receiver is reduced to line-level for use by the sub's amp. The sub's amp is still the only thing driving it's speaker(s). The speaker level output from your receiver's amplifier is redirected to the speaker level left and right outputs on the sub.
Positive: 44 %
Answer #3 | 22/12 2013 11:53
As mentioned the subwoofer receives a line level signal which is a low level of power so yes it does get some power from the reciever. It amplifies this power with a built-in amplifier.
Positive: 24 %

Possible answer

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