Ice Speaker Boxes

Select sturdy cardboard boxes, the size of the enclosure required, for the number speakers. Wire the speakers together then place them in plastic bags. Fasten them to the inside of the cardboard boxes, with holes cut out for the speaker cone diameters.

Throw in some baffling and seal the lids with tape. Cover the tape with strips of wet newspaper, take the boxes outside and spray them with a light mist of water till lightly soaked. Let freeze for half an hour, place round rigid foam 'plugs' in plastic bags over speaker holes, surround with larger boxes, and pack snow in the gaps.

Cover tops with snow, soak with some water and freeze. Remove outside boxes and plugs but leave plastic bags intact over speakers. Run wires from inside the house to external ice speakers.