3-24
OPERATION
ORBAN MODEL 8300
MID GAIN
determines the amount of peak boost or cut (in dB) over a
10 dB range.
MID WIDTH
determines the bandwidth of the equalization, in octaves.
The range is 0.8-4.0 octaves. If you are unfamiliar with using a parametric
equalizer, 1 octave is a good starting point.
The audible effect of the midrange equalizer is closely associated with the amount
of gain reduction in the midrange bands. With small amounts of gain reduction, it
boosts power in the presence region. This can increase the loudness of such material
substantially. As you increase the gain reduction in the midrange bands (by turning
the
M
ULTIBAND
D
RIVE
(Multiband Drive) control up), the
M
ID
G
AIN
control will have pro-
gressively less audible effect. The compressor for the midrange bands will tend to
reduce the effect of the Mid frequency boost (in an attempt to keep the gain con-
stant) to prevent excessive stridency in program material that already has a great
deal of presence power. Therefore, with large amounts of gain reduction, the den-
sity of presence region energy will be increased more than will the level of energy in
that region. Because the 3.7 kHz band compressor is partially coupled to the gain
reduction in the 6.2 kHz band in most presets, tuning
M
ID
F
REQ
to 2-4 kHz and turn-
ing up the
M
ID
G
AIN
control will decrease energy in the 6.2 kHz band — you will be
increasing the gain reduction in both the 3.7 kHz and 6.2 kHz bands. You may wish
to compensate for this effect by turning up the
B
RILLIANCE
control.
Use the mid frequency equalizer with caution. Excessive presence boost tends to be
audibly strident and fatiguing. Moreover, the sound quality, although loud, can be
very irritating. We suggest a maximum of 3 dB boost, although 10 dB is achievable.
In some of our factory presets, we use 3 dB boost at 2.6 kHz to bring vocals more up-
front.
High Frequency Parametric Equalizer
is a parametric equalizer whose boost and
cut curves closely emulate those of an analog parametric equalizer with conven-
tional bell-shaped curves.
HIGH FREQ
determines the center frequency of the equalization, in
Hertz. The range is 1-15 kHz
HIGH GAIN
determines the amount of peak boost or cut over a
10 dB
range.
HIGH WIDTH
determines the bandwidth of the equalization, in octaves.
The range is 0.8-4.0 octaves. If you are unfamiliar with using a parametric
equalizer, one octave is a good starting point.
Excessive high frequency boost can exaggerate tape hiss and distortion in program
material that is less than perfectly clean. We suggest no more than 4 dB boost as a
practical maximum, unless source material is primarily from compact discs of recently
recorded material. In several of our presets, we use this equalizer to boost the upper
presence band (4.4 kHz) slightly, leaving broadband HF boost to the
B
RILLIANCE
and/or
HF
E
NHANCE
controls.
BRILLNCE
(“Brilliance”) controls the drive to Band 5. The high frequency limiter and
Band 5 clipper dynamically control these boosts, protecting the final clipper from ex-
Summary of Contents for 8300J
Page 1: ...Operating Manual OPTIMOD FM 8300 Digital Audio Processor Version 2 1 Software...
Page 7: ...Operating Manual OPTIMOD FM 8300 Digital Audio Processor Version 2 1 Software...
Page 24: ......
Page 94: ...2 46 INSTALLATION ORBAN MODEL 8300 This page intentionally left blank...
Page 190: ......
Page 204: ......
Page 246: ......
Page 247: ...OPTIMOD FM DIGITAL TECHNICAL DATA 6 29...
Page 254: ...6 36 TECHNICAL DATA ORBAN MODEL 8300 CPU Module...
Page 260: ...6 42 TECHNICAL DATA ORBAN MODEL 8300 8300 RS232 BOARD PARTS LOCATOR...
Page 262: ...6 44 TECHNICAL DATA ORBAN MODEL 8300 8300 POWER SUPPLY PARTS LOCATOR...
Page 264: ...6 46 TECHNICAL DATA ORBAN MODEL 8300 8300 I O BOARD PARTS LOCATOR...
Page 270: ...6 52 TECHNICAL DATA ORBAN MODEL 8300 DSP BOARD PARTS LOCATOR DRAWING 32170 000 14...
Page 278: ...6 60 TECHNICAL DATA ORBAN MODEL 8300 8300 DISPLAY BOARD PARTS LOCATOR...
Page 279: ...OPTIMOD FM DIGITAL TECHNICAL DATA 6 61 DISPLAY BOARD...