Things You'll Need:
- Birch plywood Wood glue Nails Screws Hammer Router Screwdriver Saw 2 10" bass speakers 16-gauge speaker wire Preamplifier Power amplifier
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Step 1
Cut the 3/4" birch plywood into four 24" x 18" pieces. These will make up the top, bottom and sides of the amplifier. Also cut two pieces 24" x 24" to construct the front and back.
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Step 2
Glue and nail the four 24" x 18" pieces of the wood to make the top, bottom and sides. Let them set for 24 hours before proceeding.
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Step 3
Route the front panel for the speakers, preamp and power amp. You want to make the rectangle for the preamp/power amp just large enough for the components to fit, leaving enough wood to screw the components into place.
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Step 4
Attach the front routed panel with nails. You may wish to brace the inside to increase rigidity using one 24" x 6" piece of birch attached vertically between the two speakers. This front panel needs to be rigid so that it does not come loose due to the strong bass response of the power amp.
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Step 5
Screw the two 10" bass speakers into their respective routed holes and secure them with screws. Make sure to use all of the screws and secure the speakers tightly. They can rattle loose which will cause an awful noise when playing.
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Step 6
Attach the speaker wires to the back of the speakers. Follow the wiring diagram that came with the speakers. They must be wired correctly or they will be out of phase and will sound less bass-heavy than they should.
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Step 7
Insert the power amp and preamp into the routed rectangular area of the front panel. Screw them in tightly and connect the wires from the speaker to the power amp.
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Step 8
Glue and nail the back panel in and wait for the glue to set. While waiting for the glue to dry, check for holes or gaps and fill them with epoxy. This sealed enclosure will help with bass response and clarity. Holes or gaps will let the pressure of the bass frequencies escape, resulting in lower bass response.
