For enthusiasts and owners of classic sound engineering studios, collectors of antiques, and rare audio equipment. For sale: A professional Reel-to-Reel magnetic tape from one of the most famous historical American companies in audio mastering recording. Specifications: Manufacturer: Quantegy (formerly Ampex) - Made in USA. Model: Quantegy 406 Audio Mastering Tape. Size: 7-inch Reel. Condition: Brand New (NOS - New Old Stock) in factory condition, carefully stored and the reels have never been opened or used (as is).