resistor to cut power to speaker

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bcar

Member - Posts: 13

Joined: December 18, 2008

Location: Texas, United States

Posted: October 08, 2011 at 11:18 PM / IP Logged

Hello I have a 2011 Ford F150 that I have upgraded all the speakers and added amps. This truck has a center channel speaker that I would like to keep running with the factory amp for a little added fill but I want to tone it down a little. Can I add a resistor in line to do this? If so any guess what ohm and wattage resistor to use?

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oldspark

Gold - Posts: 4,913

Joined: November 03, 2008

Location: Australia

Posted: October 09, 2011 at 8:00 AM / IP Logged

If you want to halve the speaker power (~2/3rds the volume??), then the same resistance as the speaker, and at least half the wattage.

But can't you attenuate the input signal instead?

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bcar

Member - Posts: 13

Joined: December 18, 2008

Location: Texas, United States

Posted: October 09, 2011 at 1:27 PM / IP Logged

I dont know of a way to attenuate it. The aftermarket head unit is connected to the SYNC system that is then connected to the factory amp. As far as I know there is no level adjustment on the amp. I will try the resistor and I will have to guess on the wattage.

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resistor to cut power to speaker

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