[RodB]

Hello David, it's me again. I also wanted to comment about the rubber grommets for mounting the speaker. Unless you have a specific reason to use them, don't. You have a nice plywood baffle to mount the speaker on and the only moving object should be the speaker cone/voice coil. The cone is pushing air and the baffle is there to prevent the air at the back of the cone from trying to cancel the air movement on the front. If you use rubber mounts they may absorb some of the cone movement or provide an acoustical leak around the edge of the speaker. Now some people tweak their speaker drivers to do this but for our purposes we're not looking for fidelity on an AM radio, just nice sounding sound. No buzzes or dead spots. Some have experimented with mounting a back on the cabinet to completely or partially box in the speaker. And I've seen elaborate acoustical wave labyrinth systems made by the manufacturer to get everything out of the speaker. Probably more of a marketing gimmick than anything.