Orban OPTIMOD 6300, Operating Manual

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3-8
OPERATION ORBAN MODEL 6300
the input program material’s level falls within a user-settable window (typically
3dB), then the release time slows to a user-determined level. It can be slow enough
(0.5 dB/second) to effectively freeze the operation of the AGC. This prevents the
AGC from applying additional, audible gain control to material that is already well
controlled. It also lets you run the AGC with fast release times without adding exces-
sive density to material that is already dense.
The AGC contains a compression ratio control that allows you to vary to ratio be-
tween 2:1 and essentially

:1. Lower ratios can make gain riding subtler on critical
formats like classical and jazz.
The AGC has its own silence-gating detector whose threshold can be set independ-
ently of the silence gating applied to the multiband compressor.
Equalization: The 6300 has steep-slope bass shelving equalizer and three bands of
fully parametric bell-shaped EQ.
You can set the slope of the bass shelving EQ to 6, 12, or 18 dB/octave and adjust the
shelving frequency.
The 6300’s bass, midrange, and high frequency parametric equalizers have curves
that were modeled on the curves of Orban’s classic analog parametrics (like the
622B), using a sophisticated, proprietary optimization program. The curves are
matched to better than 0.15dB. This means that their sound is very close to the
sound of an Orban analog parametric. They also use very high quality filter algo-
rithms to ensure low noise and distortion.
The 6300 HF Enhancer is a program-controlled HF shelving equalizer that intelli-
gently and continuously analyzes the ratio between broadband and HF energy in
the input program material. It can equalize excessively dull material without over-
enhancing bright material. It interacts synergistically with the 5-band compressor to
produce sound that is bright and present without being excessively shrill.
Multiband Compression: The multiband compressor can be operated in 5-band or
2-band mode. In 5-band mode, each band compressor has a K
NEE
and R
ATIO
control.
A soft knee and gentle ratio are particularly useful in production and mastering ap-
plications, allowing subtle compression that retains as much of the dynamics of the
input program material as the operator desires.
Several band-coupling controls allow the gain reduction of a given band’s compres-
sor to be partially controlled by the gain reduction in its neighboring band’s com-
pressor. These coupling controls allow anything from quasi-wideband compression
to fully independent multiband compression.
A clipper, embedded in the crossover, protects bands 1 and 2 from transient over-
shoot. This clipper has a shape control, allowing you to vary the “knee” of its in-
put/output transfer curve from hard (0) to soft (10).
Loudness Control: The 2-band structure contains a defeatable CBS Loudness Con-
troller algorithm, which controls the loudness of most commercials well enough to
eliminate viewer annoyance. It works by constantly monitoring the subjective loud-