Where Can I Have a Box Made for Speaker?

Try U-line. They carry those heavyweight cardboard boxes, but you might have to buy more than one. I had quite a few of them which were, ironicaly, damaged during Sandy. Wet cardboard is not a good thing. Really.

Go to "custommadeboxes.com". I had a similar circumstance as you but needed a pair of boxes made. They were quick, reasonably priced, shipped with the box broken down to minimize shipping cost, and are willing to make custom orders of one box only if necessary. Many of the custom box makers require a large lot, but not this company. I also found them very friendly and responsive to deal with. As long as you have the original foam inserts, you should be good to go. Good luck.

Thanks everyone. Csmgolf, just what I'm looking for!