TDK MA was a "work-horse" of type IV cassettes. The formulation is based on Finavix particle. It appreared first around 1979.

TDK MA-R was a top pf the line of type IV cassettes. The formulation is based on Finavix particle. It is very heavy - early models have metal shell to reduce vibrations. State of the art performance. It appreared first around 1979.

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Type IV, Metal Position / Bias, premium tape. Great for high quality, reference / master recordings. TDK's highest grade of cassette tape. Case included. Reverb has your back if your item is lost, damaged, or doesn't match its description. Simply report any issues within 7 days and we'll help you get a full refund.

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TDK's best Metal tape (MA-X) put it in a shell made out of metal alloy. The successor of the legendary MA-R of 1982. A superbly heavy and stable cassette that is one of the best ever made.

TDK used to manufacture an extensive portfolio of magnetic and optical media, including several formats of videotape and blank CD-R and recordable DVD discs until the recording business was sold to Imation in 2007.

Well, take TDKs best Metal tape from the MA-X and put it in a shell made out of metal alloy. The successor of the legendary MA-R of 1982. A superbly heavy and stable cassette that is one of the best ever made.