- 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

Adjustment, test and calibration tapes for tape recorders

Welcome to EOS Technologies.
We produce and sell high-precision adjustment, test and calibration tapes for tape recorders and support you with practical tips and tools for correct calibration.

In general, these tapes can be used to adjust and calibrate tape recorders of all brands, such as AKAI, AMPEX, BALLFINGER, FOSTEX, GRUNDIG, NAGRA, OLIMP, OTARI, PHILIPS, PIONEER, REVOX, SONY, STELLAVOX, STUDER, TANDBERG, TEAC/TASCAM, TECHNICS, TELEFUNKEN and others.

The production is done on a very precise and modified full track tape recorder with extra-wide full track heads and very low wow & flutter values. The test tapes are suitable for the adjustment of tape recorders with different track widths, such as full track, ½-track or ¼-track, or tape recorders with different numbers of channels, such as mono, 2-channel, 4-channel and 8-channel.

For the production, selected batches of BASF/Emtec PER368, SM911, PER528 as well as a very high quality Quantegy tape are used. All calibration tapes are individually checked after production.

General overview