High-Quality Calibration and Alignment Tape for Cassette Decks, Walkmans, Boomboxes, and More

Ensure your audio equipment is finely tuned with this premium calibration and alignment tape. Perfect for cassette decks, walkmans, boomboxes, and other devices, this tape is expertly recorded to optimize performance.

Features:

  • Precise Signals: Contains 4-minute sine signals followed by 10 seconds of silence, featuring precise frequencies and levels for accurate calibration.

    • 400 Hz, 200 nWb/m ANSI (Dolby Level) ± 0.2 dB
    • 3000 Hz, -4 dB
    • 3150 Hz, -4 dB
    • 8000 Hz, -10 dB
    • 10000 Hz, -10 dB
    • 12500 Hz, -12 dB
    • 15000 Hz, -15 dB

  • Premium Tape Quality: Recorded on new old stock Sony UX-S 90 or 60 Type II (chrome class) tapes, ensuring supreme frequency response and reliability.

  • Optimal Shell Design: The UX-S features the best shell for calibration purposes, including the Sony "Guide Block" for easy azimuth adjustment.

  • Precision Recording Equipment: Recorded using a pristine Sony TC-KA6ES, renowned for its top-of-the-line performance and precision (Back in the day, “Stereoplay” magazine ranked it ahead of the Nakamichi Dragon and CR7, Revox B215 etc.).

    • Quartz-Lock Technology: Maintains perfect recording speed with a minimal margin of error (± 2 Hz).
    • Direct Drive Mechanism: Ensures minimal wow and flutter (< 0.02% RMS and < 0.04% peak measured).

  • Thorough Testing: Levels and azimuth are checked before each recording using original Sony test tapes and adjusted if necessary. Each tape is individually verified on a Nakamichi BX-300E for utmost accuracy.

If you have any questions, please do not hesitate to ask!

Tape Versions:

You'll receive one of the following tape models (1992 - 1997) based on availability, all of which are equivalent in terms of quality.



Actual measurements with the TC-KA6ES:


Performance Comparison:

Even top-tier decks like the Nakamichi BX-300E can't match the TC-KA6ES in maintaining consistent speed across a 90-minute tape.


Speed Test Results:

Comparative speed test results (n = 180 s) of the UX-S against various test tapes in different price ranges, including the original Sony WS-48B as the reference.


W&F and Levels:


This underscores how easily a deck can become miscalibrated when using low-quality cassettes.

All raw data for the results shown here is available upon request.