Below you will find drawings for several possible enclosures for this design. The first picture is the original sealed design-- I am indebted to Sandy H for providing the drawing and building the sealed enclosure for me. The second is a vented design submitted by Eric Y, and is for those who want the added low end extension a vented design offers. The slot ports only slightly add to the baffle width and calculated to provide an f3 of 47 Hz. vs. 90 Hz for the sealed design. The deep enclosure would be ideal for undermonitor placement, but could be used above the monitor as well.