These have got to be 30 yearsw old at least. Never used, surrounds need to be replaced. Once upon a time I was going to make some Belle Klipsch folded corner horns. Now I am thinking of fixing them and using them in a 3-way speaker. Any suggestions on size or shape? I would also like to get the specs, Q and V factors if anyone knows. I checked the library but the sheet only says volume 3 - 5 cubic ft and crossover at 800 hz.