I used a 10" table saw to cut the MDF. The cutouts and recess for the woofers were straight forward with a router and Jasper jig. Then came the difficult part of doing the recess for the square tweeters. I screwed a tweeter face down on a piece of MDF, and ran the router around it to make the first template. From there, I made a second template by running the router inside the first template. I finally found a ¾" bushing from Lowe's and finished the recesses for the tweeters. All pieces were assembled with wood glue and nails, with no additional bracing. Edges were rounded with a 3/8" roundover bit. The inside of the box was lined with 1" acoustic foam.