Orban OPTIMOD-AM 9300, Operating Manual

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OPERATION ORBAN MODEL 9300
These controls are explained in detail below.
Each Factory Preset has a
L
ESS
-M
ORE control that adjusts on-air loudness by altering
the amount of processing.
L
ESS
-M
ORE simultaneously adjusts all of the processing
controls to optimize the trade-offs between unwanted side effects.
If you wish, you may adjust the Advanced Control parameters to your own taste.
Always start with
L
ESS
-M
ORE to get as close to your desired sound as possible. Then
edit the Advanced Control parameters using the Advanced Control screen, and save
those edits to a User Preset.
AGC (“AGC Off/On”) control activates or defeats the AGC.
It is usually used to defeat the AGC when you want to create a preset with minimal
processing (such as a classical or fine arts preset). The AGC is also ordinarily defeated
if you are using a studio level controller (like Orban’s 6300). However, in this case it
is better to defeat the AGC globally in System Setup.
AGC DRIVE control adjusts signal level going into the slow dual-band AGC, and
therefore determines the amount of gain reduction in the AGC. This also adjusts the
“idle gain” — the amount of gain reduction in the AGC section when the structure
is gated. (It gates whenever the input level to the structure is below the threshold of
gating.)
The total amount of gain reduction in the 9300 processing is the sum of the gain re-
duction in the AGC and the gain reduction in the multiband compressor. The total
system gain reduction determines how much the loudness of quiet passages will be
increased (and, therefore, how consistent overall loudness will be). It is determined
by the setting of the
AGC D
RIVE
control, by the level at which the console VU meter
or PPM is peaked, and by the setting of the
M
ULTIBAND
D
RIVE
(compressor) control.
AGC REL (“AGC Master Release”) control provides an adjustable range from 0.5
dB/second (slow) to 20 dB/second (fast). The increase in density caused by setting the
AGC Controls
Full Control Name Advanced Name Range
AGC AGC Off/On Off/On
AGC DRIVE AGC Drive –10 ... 25 dB
AGC REL AGC Master Release 0.5, 1.0, 1.5, 2 … 20 dB/S
AGC GATE AGC Gate Threshold Off, –44 ... –15 dB
AGC B CPL AGC Bass Coupling Off, 12 … 0 dB
AGC METR AGC Meter Display Master, Delta
--- AGC Window Size –25 … 0 dB
--- AGC Ratio 2:1, 3:1, 4:1, infinity:1
--- AGC Window Release 0.5 … 20 dB
--- AGC Bass Threshold –12.0 … 2.5 dB
--- AGC Idle Gain –10 … +10 dB
--- AGC Bass Attack 1 … 10
--- AGC Master Attack 0.2 … 6
--- AGC Bass Release 1 … 10 dB/sec
Table 3-3: AGC Controls