Is this item rare for collectors?

As a Non-Music release from 2018, it holds niche appeal for specialized audio collectors.

What is the genre of this recording?

The genre is classified as Non-Music.

This specific audio test recording was released in 2018.

Name: kNN - Several Audio Tests For Magnetophones And Magnetic Tapes
Brand: kNN

Non-Music

Non-Music · 2018

Year · 2018Genre · Non-Music

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New / Sealed

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Is this item rare for collectors?: As a Non-Music release from 2018, it holds niche appeal for specialized audio collectors.
What is the genre of this recording?: The genre is classified as Non-Music.
When was this kNN audio test released?: This specific audio test recording was released in 2018.