How to Make a Fiberglass Subwoofer Box

Step 8 8. Speaker Rings

will not go through this process very much. You will need to construct your speaker rings out of MDF preferably 3/4". Your subs should come with some kind of diagram on the sizes, cut as to their specifications. If you would like the added look you can make a second ring to countersink your sub in the box more. Just secure the 2 rings together, and go with that, it will look very good. If you are using carpet, and counter sinking, it is important to make your ring bigger than normal so you can put carpet underneath the subwoofer. You may choose to paint your rings black if they are visible. Additional information about speaker rings can get found elsewhere on the net.