Orban OPTIMOD 6300 Operating Manual page 177

OPTIMOD 6300 DIGITAL
BASS SLOPE sets the slope ( dB/octave) of the transition between the
top and bottom of the shelf.
The moderate-slope (12 dB/octave) shelving boost achieves a bass boost that is more
audible on smaller receivers, but which can sound boomier on high-quality receivers
and home theater systems. The steep-slope (18 dB/octave) shelving boost creates a
solid, punchy bass from the better consumer receivers and home theater systems
with decent bass response. The 6 dB/octave shelving boost is like a conventional
tone control and creates the most mid-bass boost, yielding a "warmer" sound. Be-
cause it affects the mid-bass frequency range, where the ear is more sensitive than it
is to very low bass, the 6 dB/octave slope can create more apparent bass level at the
cost of bass "punch."
There are no easy choices here; you must choose the characteristic you want by
identifying your target audience and the receivers they are most likely to be using.
Often, you will not want to use any boost at all for general-purpose sound-for-
picture programming because this can exaggerate rumble and other low frequency
noise. Additionally, large amounts of boost will increase the gain reduction in the
lowest band of the multiband compressor, which may have the effect of reducing
some frequencies below 100 or 200 Hz (depending on the setting of the B1/B2
X
control). So be aware the large fixed bass boosts may have a different effect
OVER
Equalizer Controls
Group
Bass Shelf
Low
Mid
High
Brilliance
HF Enhancer
DJ Bass
Highpass Filter
Lowpass Filter
Phase Rotate
Basic / Advanced Name
Full Modify
Name
BASS FREQ Bass Frequency
BASS GAIN Bass Gain
BASS SLOPE Bass Slope
LF FREQ Low Frequency
LF GAIN Low Gain
LF WIDT Low Width
MID FREQ Mid Frequency
MID GAIN Mid Gain
MID WIDTH Mid Width
HIGH FREQ High Frequency
HIGH GAIN High Gain
HIGH WIDTH High Width
BRILLIANCE BRILLIANCE
HF ENH High Frequency
Enhancer
DJ BASS DJ Bass Boost
HIGHPASS Highpass Filter
LOWPASS Lowpass Filter
PH ROTATE Phase Rotator
Table 3-4: 5-band Equalization Controls
Range
80, 85, 90, 95, 100, 105, 110, 115,
120, 125, 130, 135, 140, 145, 150,
160, 170, 180, 190, 200, 210, 220,
230, 240, 250, 270, 290, 310, 330,
350, 380, 410, 440, 470, 500Hz
0 ... 12 dB
6,12,18 dB / Oct
20 ... 500 Hz
–10.0 ... +10.0 dB
0.8 ... 4 octaves
250 ... 6000 Hz
–10.0 ... +10.0 dB
0.8 ... 4 octaves
1.0 ... 15.0 kHz
–10.0 ... +10.0 dB
0.8 ... 4 octaves
0.0 ... +6.0 dB
0 ... 15
Off, 1... +10 dB
Off, 20, 30, 40, 50, 60, 70, 80, 90,
100, 110, 120, 130, 140, 150, 170,
200 Hz
10 ... 20 kHz; 1 kHz steps
In, Out
3-35
OPERATION