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Audio Recording Tape
Multi Track Audio Tape
ATR Master Tape
ATR Master Tape 2''
ATR High Output Master Tape 2'' x 10.5'' Metal Reel Precision Flanges. Very Low noise and musical transparency.
ATR Master Tape Specifications
Magnetic Characteristics: Test Notes:
Coercivity Hc: 365 Oe, BH Nominal
Retentivity Brs 1590 Gs
Particle orientation: Longitudinal
Recording Performance Test Reference:
Recorder model Ampex-Aria ATR-102
Record head gap length 1 mil
Reproduce head gap length 0.12 mil
Track width 200 mils nominal
Tape Speed 30 ips, 76.2 cm/sec
Playback equalization 17.5 us, AES
Recording bias 1.4 dB over @ 20 kHz See Recommended Bias
chart below 1
Bias osc. frequency 438 kHz
Recording Level Reference 185 nWb/m = 0 VU Ampex operating level
Frequency Pass Band 20Hz-20Khz Equivalent wave length of
1.5 inches to 0.0015 mils
Maximum Output Level
1 kHz at 3% 3rd harmonic
distortion 18 dB
Saturation Output Level
1 kHz 23.5 dB Level at which linearity
10 kHz 16.1 dB exceeds 1 dB of input
16 kHz 15.2 dB signal
Maximum linear operating level 10 dB Linear frequency vs output
-0.5 dB level through pass band.
3rd Harmonic Distortion 1 kHz fundamental
0 dB - Reference operating level 0.032 % frequency
+6 dB over operating level 0.096 %
+10 dB over operating level 0.28 %
+12 dB over operating level 0.49 %
Signal to Noise ratio -68 dB ASA , NAB A weighted
Peak Dynamic Range 86 dB
Dynamic range ref to 1% 82 dB 1 kHz fundamental
3rd harmonic distortion
Linear dynamic range 78 dB Range in which frequency /
wavelength response is linear
�0.3 dB tolerance
Print-through characteristic -60 dB 1KHz tone on preceding wrap
of tape stored for 24 hours
on NAB reel at 72� F
Yield Strength 12 Lbs on �� Produces 3% elongation of a
6� test sample
Breaking strength 24 Lbs on �� Force that will break a 6� test
Coating thickness 0.73 mils
Backcoating 0.040 mils
Polyester base film 1.42 mils
Total 2.28 mils
�� 0.246 inches Tolerance +0.0 / -0.002�
�� 0.496 inches
1� 0.996 inches
2� 1.996 inches
Backcoating resistance ≤ 30K Ohms Per linear inch by pin probe
Oxide coating resistance >10M Ohms
Bias Current Recommendation1 10 kHz signal, 15 ips 10 kHz signal, 30 ips
1 mil gap length (ATR-Aria) 1.4 dB 0.6 dB
.5 mil gap length (Ampex) 3.0 dB 1.4 dB
.25 mil gap length (Studer) 4.5 dB 2.0 dB
1Note: ATR Master Tape has a wide acceptable bias current vs. distortion tolerance.
The above recommendations are to be used as a guide only.
ATR MAGNETICS INTRODUCES NEW GENERATION ANALOG TAPE
York, PA., September 20, 2007 - ATR Master Tape is now in full
production. The result of many hours of development and process
refinement have given rise to the first new analog mastering tape in 10 years
with magnetic properties specified by tape recording industry veteran
Michael Spitz. ATR Master Tape provides an ideal combination of high
output capability, very low noise and musical transparency.
We understand that magnetic and aural performance by itself does not
constitute a super tape. The magnetic particles must be supported by the
best possible binder system and PET Film substrate available. To that end
we consulted the world�s top chemists and process engineers to make sure
ATR Master Tape runs clean pass after pass. It withstands countless
overdub passes without compromising the sound that you worked so hard to
achieve. Without the need to transfer your tape to a workstation after
recording you will be able to keep the session flow moving without
The longer your music avoids A/D conversion, the better the results.
Tracking, overdubbing, mixing and mastering to ATR Master Tape is simply
the best method possible to create the ultimate musical results which cannot
be achieved in any other way.
�Nothing Sounds Like Tape�
Available in 2�, 1� and 1/2� widths in 2500� lengths on precision hubs and
flanges. Factory direct ordering is available via our website.
Please contact Mike Spitz for all technical questions at (717) 852-7700.
WARRANTY/ Limited Liability: These products will be replaced free of charge if
found defective in materials or workmanship for a period of 1 year from date of
shipment. Other than replacement, ATR Magnetics, LLC, will not be held
responsible for losses (including consequential damages) caused by the use or
performance of the product.
ATR Master Tape 1''
ATR Master Tape 1/4''
ATR Master Tape 1/2"
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