MRL Calibration Tapes Right from the Factory!
Calibration tapes are an important tool to prove your system is working to international standards, and to make sure you're operating at peak performance. We feature the entire line of Magnetic Reference Laboratory calibration tapes from 1/4" thru 2". There's hundreds of variations of tapes available. What we have listed here are our most popular tapes. Please contact us for calibration tapes not listed.
Generally, 1/4" tapes will be NAB here in the USA. Tascam and Otari 8 track 1/2" and 16 track 1" decks are generally IEC but may have been switched to NAB internally. Please consult your deck's eq requirements before ordering, for MRL tape cannot be returned unless defective. We have a re-record program for tapes shipped within 6 months just in case your tape was accidentally erased or if you want to change to another EQ (NAB, AES, or IEC) for your tape.
Examples of the Recommended Maximum Operating Levels of Currently Manufactured Tapes:
+6dB- RMGI Emtec SM911, LPR35
+9dB- RMGI Emtec SM900
+10dB- ATR Studio Master Tape
Keep this in mind when ordering tapes:
- MRL Multifrequency tapes have a plethora of frequencies in addition to the standard 1 kHz for operating level adjustments and 8 or 16 kHz for azimuth adjustments. You may not need all those extra frequencies.
- Many people order the two speed calibration tapes, two
frequencies each which covers the basics of operating system adjustment
and azimuth adjusment only.
- The short form, two speed tapes may NOT have enough recording
time per frequency depending on the agility of the user and the
complexity of the adjustments needed. In other words, if it takes more
time than the regular tapes offer to adjust all those tracks without
rewinding the tape, go with a "long form" tape. We offer the long form
for 1" and 2" two speed tapes only. Each tape description will tell you
the record time for each frequency.
All MRL tapes are recorded on RMGI SM911, SM900, and have an option for ATR Master Tape. You can request which tape is used in the options pull down for each calibration tape. All MRL tapes ship from MRL lab in California.