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These speakers are heavy, and are minimally packaged. Pickup from northeastern Pennsylvania 18661 preferred.

-Kit of parts https://www.diysoundgroup.com/tempest-12.html
-Flat pack cabinet kit https://web.archive.org/web/20150316030205/http://www.diysoundgroup.com/waveguide-speaker-kits/fusion-12/tempest-flat-pack.html
-Other necessaries purchased: glue, lining, binding posts, paint, boxes for (external) crossovers.

You can see from the response curve shown on the Fusion 12 page that there is a rising low frequency response. This makes the speakers sound as if the response goes lower than it actually does, but this rise also makes it difficult to integrate a powered sub. I put together 6 fabric covered styrofoam balls to experiment with raising the F3 of the speakers. I found that 2 worked best for me. The purchaser of the speakers gets the 6 plugs, and also a schematic of the crossover.

Finish is black Duratex. Lining is 1” thick adhesive backed acoustical foam. Two sets of binding posts on back of cabinet, one set to each driver. Crossover capacitors upgraded to SoniCap Gen 1, and Cornell Dubilier bypass capacitors added across each. No stands or subs.