I just got a pair of Dynaco's, and they need new surrounds. It looks like the foam is cracked. Most places on line say that they only used rubber surrounds. Did they ever use foam? Back of the speakers say Dynaco Options A25 Made in USA. Black, with a sock for a grill. It stays in place in a groove. 2 way with a port. I will try to post pics later. Badge on the grill sock says Dynaco