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Dolby Level 400 Hz 200nWb/m Test Tape

Suitable for Playback Output Level alignment of any Cassette Tape Deck. Set Playback Output Level of each channel to match with "Dolby" marks on the "VU"-meter's scale

Recorded on new TDK, MAXELL or TEAC 16u tape

Each Cassette Tape is a Full-track Master tape (not a copy). Cassettes are recorded OFF SHELL using an OTARI 0.15" (3.81mm) Reel-to-Reel MX-5050BIII-F-P4 Production full-track tape recorder and professional test equipment. The Capstan motor of the tape recorder is controlled by digital Quartz- Locked PLL. This can work at standard speeds with 0.01% accuracy, and at any speed from 1-7/8 to 30 ips using an external clock generator. (If required a cassette can be recorded at 30 IPS)

Reproduction or Playback Head of the tape recorder is a 4-track 4-channel head to measure Level unevenness @ 400 Hz.
PLEASE NOTE. Level unevenness is checked totally across the tape (not along the tape) before recording. Tapes with difference in Level more than 0.2 dB are discarded

Reproduction Equalization is calibrated using a Constant Magnetic Field Transducer which has been designed by GennLab.

Duration 10 min recorded at the BEGINNING of the Tape from 00 min 10 sec to 10min 10 sec

Level fluctuation less than +/-0.1 dB measured. Typically +/-0.06 dB

Frequency fluctuation +/-0.01% measured

This Tape is equivalent to Nakamichi DA09005B Test Tapes

More information on

P.S. Good luck and please only bid if you are serious and going to pay in full within 3 working days

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  • Seller location: Kapiti, Wellington, NZ

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