Azimuth: 10kHz (-10-12dB ANSI), 8 min. This tape contains a 400Hz 0dB tone of two standards: ANSI and DIN Reference. The DIN Reference standard has been used by Sony, Tascam (Teac), Akai, Pioneer, and other decks since 1981-82 (see your service manual).
Azimuth: 15 kHz (-20dB), 8 min. For tuning mid to high end cassette decks. Anything with a magnetic field can travel near the tape and disrupt the stability and level of the recording. Content: 1. Left / Right channel check.
Azimuth: 10kHz (-10dB), 5 min. Anything with a magnetic field can travel near the tape and disrupt the stability and level of the recording. Left / Right channel check. Speed: 3kHz (-10dB), 5 min.