How to Build a Nice Subwoofer Box

Subwoofers are essentially large speakers.

Subwoofer boxes are an integral part of an aftermarket car audio system. These boxes are used to hold subwoofers, which are large speakers that generate low-frequency audio. Subwoofer boxes must be sturdy and sealed properly to help create high-quality audio. Subwoofer boxes must also be an appropriate size for the subwoofer. A box that is too large or too small will not allow the subwoofer to perform at its maximum performance level. Building a subwoofer box may be time-consuming, but the finished product will allow you to add a custom touch to your car's stereo system.

Things You'll Need

• Terminal cup
• Silicone caulk
• Carpenter's glue
• 2-inch metal screws
• 3/4-inch medium-density fiberboard
• Drill
• Jigsaw
• Compass
• Pencil
• Screwdriver

Instructions

1. Cut the six sides to the subwoofer box out of medium-density fiberboard. A subwoofer box for a 10-inch subwoofer should have two 14-by-12-inch panels for the top and bottom of the subwoofer box, two 13-by-12-inch panels for the sides and two 13-by-14-inch panels for the front and back.

2. Cut out a hole for the terminal cup on the back panel and a hole for the subwoofer on the front panel. The terminal cup should be placed in the middle of the back panel. Drill a hole with a drill and use that point to start cutting with the jigsaw. To cut the front panel, place the tip of a compass in the middle of the panel and draw a 10-inch-diameter circle. Once again, use the drill to drill a hole and use that point to start cutting with the jigsaw.

3. Connect the six panels together by first placing the front panel flat on the work surface. Place both side panels to the side of the front panel and pre-drill three individual holes for each panel. Place a small amount of carpenter's glue on the seam between the panels and screw them into place using three 2-inch screws. Piece together the final three pieces by pre-drilling holes, using carpenter's glue and fastening them together with 2-inch screws. Finally, attach the terminal cup to the back of the subwoofer box with the supplied screws.

4. Apply the silicone caulking to the seams on the interior of the subwoofer box. A small tube of silicone caulk will allow you to easily access and seal all of the seams.

References

• Crutchfield: How to Build a Subwoofer Box

Resources

• Read this Article in Spanish