The following is the sequence I followed in building the panels.
Step 1 - Cut rebates using circle cutter and router
Step 2 - Cut circles out with circle cutter and router
Step 3 - Drill woofer mounting holes and install T-nuts (measure the woofers for the cutout hole,
there are variations depending on which woofer used!!)
Step 4 - Secure woofer baffles to side pieces. Do not glue the back center panel piece at this time
Step 5 - Join the woofer baffle assemblies together with the back center piece using screws. Pre-drill
Holes. DO NOT GLUE!!!
Step 6 - Join the completed baffle assembly to the bottom piece.
Step 7 - Attach sides to bottom and baffle assembly
Step 8 - Attach top piece
Step 9 - Spray/paint interior with black paint.
Step 10 - Sand
Step 11 - Apply veneer
Step 12 - Stain
Step 13 - Apply first finish layers
Step 14 - If using side mounted terminal connectors, cut holes in veneer
Step 15 - Complete finish
Step 16 - Wire cabinets
Step 17 - Install woofers
Step 18 - Attach wiring to woofer. Careful with making sure the polarities are correct.
Step 19 - Check polarity with battery