Orban OPTIMOD-PC 1100 Operating Manual page 158

3-50
OPERATION
B4>B5 CPL ("Band 4>5 Coupling") controls the extent to which the gain of band 5
(6.2 kHz and above) is determined by and follows the gain of band 4.
The sum of the high frequency limiter control signal and the output of the B4>B5
determines the gain reduction in band 5. The B4>B5 CPL control re-
CPL
CONTROL
ceives the independent left and right band 4 gain control signal. Range is 0 to 100%
coupling.
B3>B2 CPL and B2>B3 CPL controls determine the extent to which the gains of
bands 2 and 3 track each other.
When combined with the other coupling controls, these controls can adjust the five-
band processing to be anything from fully independent operation to quasi-
wideband processing.
B2>B1 CPL control determines the extent to which the gain of band 1 (below 100Hz
or 200Hz, depending on crossover setting) is determined by and follows the gain of
band 2 (centered at 400Hz). Set towards 100% (fully coupled), it reduces the amount
of dynamic bass boost, preventing unnatural bass boost. Set towards 0% (independ-
ent), it permits frequencies below 100Hz (the "slam" region) to have maximum im-
pact in modern rock, urban, dance, rap, and other music where bass punch is crucial.
Accordingly, it can be useful in music video oriented formats.
Bx Out ("Band x Output Mix") controls determine the relative balance of the bands
in the five-band compressor. Because these controls mix after the band compressors,
they do not affect the compressors' gain reductions and can be used as a graphic
equalizer to fine-tune the spectral balance of the program material over a ±6 dB
range.
Their range has been purposely limited because the only gain control element after
these controls is the look-ahead limiter, which can produce pumping or distortion if
Band Mix
Advanced Name
B2>B1 Coupling
B2>B3 Coupling
B3>B2 Coupling
B3>B4 Coupling
B4>B5 Coupling
B1 Output Mix
B2 Output Mix
B3 Output Mix
B4 Output Mix
B5 Output Mix
B1 On/Off
B2 On/Off
B3 On/Off
B4 On/Off
B5 On/Off
Range
0 ... 100 %
0 ... 100 %
0 ... 100 %
0 ... 100 %
0 ... 100 %
–6.0 ... +6.0
–6.0 ... +6.0
–6.0 ... +6.0
–6.0 ... +6.0
–6.0 ... +6.0
On, Off
On, Off
On, Off
On, Off
On, Off
Table 3-11: MB Band Mix Controls
ORBAN MODEL 1100