DIY Subwoofer Box 8 Kicker

Written by nichole liandi
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DIY Subwoofer Box 8 Kicker
(Hifi modern aluminium subwoofer image by Vladimir Karpenko from

The audio company Kicker builds a wide variety of car subwoofers in different sizes and in different lines. To get the best performance from an 8-inch Kicker subwoofer, it needs to be mounted in a sturdy, well-constructed subwoofer box. A box can be built to mount a sub with basic tools and carpentry skills.

Skill level:

Things you need

  • Sheet of 3/4-inch Medium Density Fiberboard (MDF)
  • Tape measure
  • Circular saw
  • 1-1/2 inch wood screws
  • Screwdriver
  • Jigsaw
  • Drill and 1/2 inch bit
  • 8-inch Kicker sub
  • Speaker wire

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  1. 1

    Cut front and back panels for the sub box from your MDF, using a circular saw. The panels should measure 12 by 12 inches.

  2. 2

    Cut top and bottom panels for the sub box from MDF, using your circular saw. These panels should measure 12 by 14 inches.

  3. 3

    Cut two side panels for your sub box from MDF, using your circular saw. Cut these two panels to measure 10-1/2 by 14 inches.

  4. 4

    Assemble the top, bottom, and side panels together so that they form a hollow square, with external dimensions of 12 by 12 inches around the perimeter. Attach the panels together with 1-1/2-inch wood screws, spaced every 2 inches.

  5. 5

    Place the rear panel onto this assembly and screw it in place with wood screws, spaced every 2 inches.

  6. 6

    Drill a hole near the bottom edge of the back panel with your drill and a 1/2-inch bit.

  7. 7

    Cut an opening for the subwoofer, centred on the front panel. Use the subwoofer or the template that came with it as a guide. The exact opening size varies depending upon the specific model of Kicker 8-inch subwoofer.

  8. 8

    Screw the front panel onto the box with wood screws, spaced every 2 inches.

  9. 9

    Insert the speaker wire into the hole in the back of the sub box, and pull it through the box's front opening. Attach the ends of the speaker wire to the terminals of the subwoofer.

  10. 10

    Mount the subwoofer into the opening in the front panel, using the screws that were supplied with the subwoofer, or small wood screws if these are not available.

Tips and warnings

  • Wear appropriate safety gear when working with power tools.

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