I spent my afternoon refoaming my AR 3a replica' s woofers. I' ve heard drivers are made by Tonegen , but the woofer is marked with the modern AR logo. Unlike the original, internal wiring is made with large, excellent copper wire, and the internal is filled with white plastic material ( fiberglass? ). The heavy furniture is identical to the original, with strong internal rigid reinforcement. My Soundcraftsmen power amp has A/B speakers switch, so I 've had an instant confrontation between origi