RTR Multifrequency Calibration Tape - ¼″, 15 ips (38.1 cm/s), 320 nWb/m, IEC 1 (CCIR) - 76403
Experience the pinnacle of audio precision with the Multifrequency Calibration Tape. This tape empowers you to fine-tune your audio equipment with unparalleled accuracy, ensuring that your audio recordings and playback consistently deliver the highest quality.
Crafted to the highest standards, this tape is designed to help audiophiles, recording professionals, and enthusiasts maintain the utmost precision in their audio equipment by adjusting the gain and frequency response of the playback amplifier and to adjust the playback head gap (azimuth).
This professional-grade tape is meticulously designed to ensure accurate calibration and evaluation of the playback performance of your RTR tape recorder, making it an indispensable tool for audiophiles and professionals.









Product Details
Technical Specifications:
- Tape speed: 38.1 cm/s (15 ips)
- Track width: Full track
- Azimuth position: (90° ± 1′)
- Reference magnetic flux: 320 nWb/m (DIN)
- Equalization: IEC 1 (CCIR), 35 µS
- Duration: approx. 10 min.
- Total length (incl. blank tape section): approx. 12 min.
Signals, Flux level (relative to reference) and duration:
- 1 kHz at 0 dB, 2:00 min.
- 63 Hz at -10 dB, 1:00 min.
- 500 Hz at -10 dB, 1:00 min.
- 1 kHz at -10 dB, 2:00 min.
- 10 kHz at -10 dB, 2:00 min.
- 16 kHz at -10 dB, 2:00 min.
Features:
- Accurate Magnetic Flux Density
- Extended Testing Duration
- Company: EOS Technologies (AKA "Test Tape")
- Country of Origin: Germany
Applications:
- Recording Studios: A must-have tool for studios striving for perfection in audio recording and mastering.
- Audiophiles: Perfect for audiophiles who take their audio experiences seriously and require accurate playback calibration.
- Essential for audio professionals, recording studios, and audiophiles aiming for optimal audio playback quality.
- Suitable for use with reel-to-reel tape recorders, mastering decks, and other audio playback equipment to achieve precise calibrations.
Notes:
- Please store your test tapes in a cool and dry place, preferably at 19°C to 23°C with a relative humidity of 50%.
- Please note that the tapes may wear out with frequent use and lose their accuracy over time.
- Do not store them near strong magnetic fields.
- The price listed is for only one unit of the calibration tape.
- Opened box voids its return acceptance.
- It is also advised not to share the tapes with others to keep the consistency and accuracy of the tape intact.