UAD Powered Plug-Ins Manual
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Chapter 2: Ampex ATR-102
To manually calibrate UAD Ampex ATR-102:
Repro Level
Calibration
1. Set the
to the “MRL” position. The built-in alignment tape
tone will sound and its level can be viewed on the
3. Adjust
display 0 dB.
Repro EQ
Calibration
5. Adjust
display 0 dB.
7. Adjust
so the Meters display 0 dB (or as close as possible).*
*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:
If Repro HF and/or Repro LF EQs are adjusted by a large amount, it
may be necessary to recalibrate the output level (steps 1–3).
Record Bias
Calibration
to the tone level position in
below (the
tone level depends on tape speed).
below (the frequency de-
pends on tape speed).
throughout its range until the
reach the maximum level
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).
Table 3. Record Bias Calibration Frequencies and Levels
Tape Speed
Tone Frequency
Tone Level
3.75 IPS
2.5 kHz
–16 dB
7.5 IPS
5 kHz
–6 dB
15 IPS
10 kHz
+4 dB
30 IPS
20 kHz
+4 dB
Содержание Ampex ATR-102
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