Calibration Tapes Right from the
Note: ALL calibration tapes automatically qualify for free ground shipping. 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
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
or if you want to change to another EQ (NAB, AES, or IEC) for your
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.
- MRL Tapes are made to order and are not returnable per our return policy so make sure you order the right tape. Any warranty claims are handled by MRL Lab.
Make sure you clean your deck's heads, capstan
and guides and then
demagnetize the heads, capstan and guides
tape! ALL MRL tapes are made in USA.
Please click on the blue product titles below for more detailed
Normally, MRL tapes are recorded on RMGI SM911, but have an option for ATR Master Tape. You can request ATR MAster Tape in the options pull down for each calibration tape. All MRL tapes ship from MRL lab in California directly to you. MRL TAPES NORMALLY SHIP BY UPS GROUND.