Quote Originally Posted by GM View Post
How do you plan to support the driver vertically?

GM
Hey, GM, I don't think it shows up that well in the pictures of the cardboard template but I cut an opening (a cradle) that will be 1/4" larger than the magnet. There are two small corners that will support the magnet and the back of the magnet will be loaded against the center brace with a shim. Attached is a picture of the cradle cutout transcribed onto the yet-to-be-cut center brace. Do you think it needs more support that this? I could make two half "rings" to attach to the brace, holding the magnet very securely.

I am trying to keep everything non-essential out of the inside of the cabinet. Last night, I did some calculating using numbers for the area displaced by the center brace that were a bit optimistic. My new calculations give an internal box volume, calculating for everything in the cabinet, including the 416, to be between: 16.323 -> 16.466 cu. ft.. I believe this is very close to the original design criteria of 16.4 cu. ft.. I did not calculate the roundovers on bracing nor the air spaces in the frame of the woofer into the calculations, extracting the volume by a solid cone of it's measurements.

Anything I am missing in the build, so far? Do you think the vent placement wil be allright? I know it might need to be adjusted as to the room or the performance of the woofer. One last question, please, about stuffing the line. I've read some folks have used sheet fiberglass (OC 703 or similar) with good results but are there any other materials I might use for the stuffing?

Thanks for all your help so far. I would be lost on most of this without guidance.