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How To Build A Speaker Box
By Jen
Subwoofer speaker boxes come in a variety of styles usually in a rectangular or square shape.
Types of subwoofer boxes include sealed, ported and bandpass with the sealed subwoofer box being the most common, all of which you can build at home.
Tools you should need, to build a sealed speaker box, which are mostly available from your local hardware or building supply store:
3/4-inch medium-density wood (available from lumber yards)
Jigsaw,
Router,
Power drill,
Down spiral bit or spiral bit,
3/4-inch bit,
File, sandpaper,
Razor blade or scalpel,
Spray glue,
Tape measure,
Pencil,
Screws and Screw Driver
Silicone,
Solder,
Soldering iron,
Scratch paper or sand paper,
Carpet
Ask the manufacturer or the retailer of your subwoofer speaker to give you the ideal correct dimensions on how to build your speaker box, always take into account how thick the wood is that you are using to build the speaker box.
And ask if the retailer has manufacturer's software available for you to get a print out of a subwoofer box build design template to make building easier.
Steps on how to build a speaker box:
Step A:
Trace out the patterns of your speaker box with pencil and a tape measure on to the wood to get measurements right.
Remember there is six sides of your box you need to build plus a divider in the center if you have two speakers.
You can build more complicated boxes by adding more dividers and speakers.
Step B:
Cut out the templates on the wood with a jigsaw.
Remember when you are building this speaker box to keep safety first!!!
Step C:
Using the grille of the speaker, make a traced outline on the top of the enclosure template and also trace the inner and outer portions of the frame so you know exactly where to place the speakers after you build your speaker box.
Step D:
Take the router with a 3/4-inch bit and set it for a cutting depth of 3/8-inch.
Route out the area between the inner and outer circle. This is where the frame of the speaker will rest flush mounted on the finished box. If you don't have a router, use the jigsaw and cut out the hole of the inner circle. In this case, the frame of the speaker will rest on top of the wood.
Step E:
Cut holes for the speakers in the top panels of wood.
Step F:
Smooth and sandpaper the rough edges of holes to give a nice clean finish, how smooth they are will determine how well the speaker will sit in the hole.
Step G:
Cut a two inch hole in the side panels for the speaker wires to protrude through, or two if you have more than one speaker.
Step I:
Screw the box together leaving the front panel off (the one that holds the speakers) off the box.
Then seal with silicon to insure the air will not leak out.
Step J:
Spray glue around the sides of the speaker box, then tightly wrap carpet around it.
Also carpet the top panel of the speaker box that you left off while screwing the box together.
Remembering to cut holes in the carpet where the speaker or speakers will be placed.
Step K:
Place the connectors through the holes in the sides of the box so the connectors are inside the box.
Secure the connectors with screws and seal around them with silicone.
Step L:
Screw the top panel to the box and feed the connecting wires through the hole in the top panel.
Remember to take into account how much power you are running through the wires, and to buy the right gauge (thickness) of wire you need.
Step M:
Solder each wire to the speaker and connector (This prevents the wires from falling off and develops a better electrical connection and make sure you solder surrounds the wires on all sides)
Remember to solder the negative wire to the negative lead on the speaker and so forth with the positive wire and lead.
Step N:
Screw the speaker into the top panel securely too prevent movement and to make a seal around the hole.
Step O:
After you build your speaker box, securely mount it in your car and enjoy.
Using this basic layout you can build the more advanced models mentioned at the start of this article.
See Also:
More information on speaker enclosures
Learn to Install Car Audio and Security
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