Make paper speakers look new?

[Poultrygeist]

Those look great. I will have to use It on the pair of 4 ohm 15" drivers I removed from an old Maggie console. I have the horns also. Since I will be adding some at the top for the horns, would you suggest cork for the back of the baffle? Im thinking of a 24"X36" baffle.

Cork may cut down a tiny bit on resonance but I don't think it's worth the effort.