I'm new to 57's. I bought a pair that sound great. I am looking for a pair for a friend and heard some that had been rebuilt about 10 years ago, I believe by Wayne Piquet. The appearance of the rebuild looked excellent, grills were off so I could see quite a bit. All panels worked, no difference in output speaker to speaker, I even did a sweep and the curves were almost identical. They played plenty loud, were charged for 4 days before I heard them, but they didn't have the magic that 57's are known for. This was at a high end ship, driven by some excellent equipment. I've been reading what I can find about coating evaporating, mylar becoming brittle... but also see a lot of conflicting information. Can someone shed some light on what happens when 57's age? Thank-you.
