- Recorded on selected BASF batches
- Extra long duration tracks
- Blank tape section from the same batch available
- Customised configuration of the test tape on request

- Recorded on BASF, SONY or MAXELL tape
- Precision shell for highest azimuth accuracy
- Very low wow & flutter values
- Tight tolerances for consistent quality

Test and calibration tapes for reel-to-reel tape recorders and cassette decks – manufactured in Hamburg