How to connect a subwoofer with speaker wire

Written by robert good
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How to connect a subwoofer with speaker wire
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Wiring a subwoofer to an amplifier requires you to know the amps of the subwoofer and the amplifier. For instance, if you're wiring a 400 watt, 10-inch subwoofer you would probably want to connect it to a 450 watt amplifier. Or if you're wiring an 850 watt, 12-inch sub you would want to connect it to a 900 watt amplifier. The speaker wire should be at least 14 gauge.

Skill level:
Easy

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Things you need

  • 14 gauge speaker wire
  • Wire cutters
  • Wire strippers
  • Phillips head screwdriver
  • Amplifier
  • Sub-woofer

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Instructions

  1. 1

    Mount the amplifier to the rear of the subwoofer box. Make sure the cooling fans are facing outward away from the frame of the subwoofer box. Loosen the wire connections for the positive and negative wires on the side of the amplifier using your screwdriver.

  2. 2

    Measure and cut the length of speaker wire needed to go from the speaker connections on the rear of the subwoofer box to the side of the amplifier. Splice the ends of each wire and remove 1/4-inch of covering from each end.

  3. 3

    Insert the positive wire into the positive input on the rear of the subwoofer box and the negative wire into the negative input. Insert the positive wire into the positive input on the side of the amplifier and tighten the securing screw with the screw driver. Repeat for the negative wire.

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