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To manually calibrate UAD Ampex ATR-102:
1. Set the
Repro Level
Calibration
tone will sound and its level can be viewed on the Meters.
2. Set the
3. Adjust
Repro EQ
4. Set the
Calibration
5. Adjust
display 0 dB.
6. Set the
7. Adjust
*Because the MRL alignment tapes we used have fringing compensation, it may not be possible to
increase Repro LF enough to make the meter reach 0 dB at low frequencies. If a flat response is
desired, you can switch the Manual Cal knob from MRL mode to the "external" tones then readjust
Repro LF for flat response (0 dB) using the external tones instead of the MRL tones.
Note:
may be necessary to recalibrate the output level (steps 1–3).
Record Bias
8. Set the
Calibration
tone level depends on tape speed).
9. Set the
pends on tape speed).
Table 10. Record Bias Calibration Frequencies and Levels
Tape Speed
10. Adjust
achievable with the Bias control.*
*If the meters reach their maximum "pinned" value, you may temporarily reduce the
level to lower the meters, so the maximum achievable level can be accurately viewed (the maxi-
mum achievable level may be higher than the pinned value of 3 dB).
UAD Powered Plug-Ins Manual
Manual Cal Knob
Tones
frequency to 1 kHz.
Reproduce
(output) so the
Tones
frequency to 10 kHz.
Repro HF
(not to be confused with
Tones
frequency to 100 Hz.
Repro LF
so the Meters display 0 dB (or as close as possible).*
If Repro HF and/or Repro LF EQs are adjusted by a large amount, it
Manual Cal Knob
Tones
frequency to the value in
Tone Frequency
3.75 IPS
2.5 kHz
7.5 IPS
5 kHz
15 IPS
10 kHz
30 IPS
20 kHz
Bias
throughout its range until the
to the "MRL" position. The built-in alignment tape
Meters
display 0 dB.
HF
to the tone level position in
Table 10
Tone Level
–16 dB
–6 dB
+4 dB
+4 dB
Meters
- 168 -
EQ) so the
Meters
Table 10
below (the
below (the frequency de-
reach the maximum level
Reproduce
Chapter 12: Ampex ATR-102
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