10 TDK & Maxell Type II Blank Audio Cassettes

Updated August 28, 2026

An assortment of ten vintage blank audio cassette tapes, all featuring Type II High Bias formulations. The lot includes two TDK SA-X 100 Super Avilyn Extra units with the Super Precision Anti-Resonance Mechanism II, one TDK SA 100 Super High Resolution tape, and one TDK SA-X 90 Reference Standard Cassette Mechanism tape. Also present are three TDK SA 60 Super Avilyn High Bias tapes housed in Slimline EcoCase packaging and three Maxell XLII 90 High Bias cassettes featuring the iconic man in a chair logo. The Maxell tapes are labeled as assembled in Mexico, while the TDK SA-X 90 unit is marked as made in Japan. All ten units are New Old Stock and remain factory-sealed in their original cellophane wrappers. Case Length: 4 1/4 inchesCase Width: 2 3/4 inchesCase Depth: 5/8 inchesTotal Stack Height: 4 3/4 inchesThe collection is in excellent vintage condition as New Old Stock. All ten cassettes remain factory-sealed in their original cellophane. There is minor shelf wear and light scuffing to the cellophane wrappers consistent with age and storage, and the TDK SA-X 90 gold cardstock wrapper shows very slight edge wear (photo 7). No cracks or damage are visible to the plastic cases through th

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