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INSTALLATION ORBAN Model 8400
c) Adjust the Reference Level to make the 8400’s AGC meters indicate an average
of 10 dB gain reduction when the console’s VU or PPM is peaking at its normal
level.
If the AGC gain reduction meter averages less than 10 dB gain reduction
(higher on the meter), re-adjust the
Reference Level to a lower level.
If the
AGC gain reduction meter averages more gain reduction (lower on the
meter), re-adjust the
Reference Level to a higher level.
d)
When finished, reset Studio Chassis to yes, if required (e.g., if that was its
setting prior to setting
Reference Level level).
5. Adjust Right Channel Balance.
[Skip this step if the channels are already satisfactorily balanced.]
[−3 dB to +3 dB] on right channel only, 0.1 dB steps
This is not a balance control like those found in consumer audio products.
This control changes gain of the right channel only. Use this control if the
right analog input to the 8400 is not at exactly the same level as the left in-
put. Be certain that the imbalance is not from a certain program source, but
only through distribution between the console output and 8400 input. This is
best accomplished by playing program material that is known to be mono-
phonic, or by setting the mixing console into mono mode (if available).
A)
Adjust Right Balance to achieve correct left/right channel balance.
6. Adjust the Digital Input Reference Level and Right Balance controls.
If you will be using the digital input, set the input to
Digital and repeat steps 4
and 5 above using the
Reference Level and Right Balance controls for the Digi-
tal
section.
7. Set Output and configuration level.
A) Navigate to the Input/Output: Output screen.
B) You can use either program material or tone to set your output level (and thus, your
on-air modulation). If you want to use tone, turn the 400Hz calibration tone on.
C) Set the analog output pre-emphasis control to Pre-E (for pre-emphasis) or Flat.
[Skip this step if you will not be using the analog output.]
If you will use the analog output to drive a stereo encoder,
Pre-E provides
the best performance because the stereo encoder being driven by the analog
output does not have to restore the pre-emphasis. However, if you cannot
defeat the pre-emphasis in your stereo encoder, or if you will use the analog
output for monitoring, set the output
Flat.
If you are sending the analog output of the 8400 through a digital link that
uses a lossy codec (like MPEG, APT-X, or Dolby), set the output
Flat.
Lossy codecs cannot handle pre-emphasized signals.
D)
Set the Digital Output Pre/Flat control to Pre-E (for pre-emphasis) or Flat.
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