AMPEX-Grand-Master-456 AMPEX GRAND MASTER 456 - 2500 ~1/2" Used Tape ~ FS AMPEX GRAND MASTER 456 ELECTRONICS ENGINEERING JACKET L AMPEX GRAND MASTER 456 on 10 1/2" Metal Reel sealed AMPEX GRAND MASTER 456 Audio tape reel to reel + 4 AMPEX GRAND MASTER 456 ¼â€ Reel Tape - No Reserve