1982 Classic! 1 x TDK AD-X 90 Blank Audio Cassette Tape -Japan sealed/new

This is a great and highly regarded tape, the TDK AD-X 90 from 1982!. From the golden period of tapes, the early 1980s. Great to look at, even better to use!

TDK I believed used to make the best range of tapes for cassette players.

This is a normal position cassette that uses the same high density recording magnetic material "Avilyn" as the high position cassette "SA". "AD-X" stands for "Acoustic Dynamic Extra". The "Avilyn” magnetic material, which is made by adsorbing cobalt ions to iron oxide, can freely adjust the coercive force related to the bias amount. The SA uses an "Avilyn " that is adjusted for high positions, but the AD-X tunes it for normal positions, allowing it to be used with the same bias as the AD. By using "Avilyn ", the magnetic properties such as the maximum residual magnetic flux density of the tape can be improved. The sound quality has been improved dramatically. It has a dense and high-resolution sound with a lot of information, on par with "SA". In developing this product, not only did they improve the electromagnetic characteristics, but they also placed emphasis on aural evaluation, which they named the "acoustic concept". They have upgraded the sound quality based on the aural characteristics of "AD". It was released in 1982 as the first normal position tape using "Avilyn" magnetic material. Compared to "AD", MOL (maximum practical output) is +2dB in the low-mid range and +1.5dB in the high range. The dynamic range is the maximum normal for TDK. The main body uses the same "SP mechanism" as "MA" tape and the price was the same as a "SA" Type II tape. Source: TDK Cassette Tape Maniacs - translated by Google Translate

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