AI says: "Klipsch Heresy cabinets marked "JC" likely indicate they were handcrafted by a specific worker, possibly John C., in Hope, Arkansas, during assembly, a common practice for Klipsch Heritage series speakers known for grain-matched veneers and sequential serial numbers, suggesting a personal touch on these highly efficient, classic American-made speakers. "
I wonder if one of the few former employees on here will have some insight?