Orban OPTIMOD 6200, Operating Manual

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6-2
TECHNICAL DATA Orban Model 6200
Specifications
It is impossible to characterize the listening quality of even the simplest limiter or com-
pressor on the basis of the usual specifications, because such specifications cannot ade-
quately describe the crucial dynamic processes that occur under program conditions.
Therefore, the only way to meaningfully evaluate the sound of an audio processor is by
subjective listening tests.
Certain specifications are presented here to assure the engineer that they are reasonable,
to help plan the installation, and to help make certain comparisons with other processing
equipment. Some specifications are for features that are only available on the 6200.
Frequency Response: ±0.1dB, 2-20,000Hz (Bypass mode).
Input/Output Delay: approximately 15 milliseconds. Can be padded to full frame of: 24 mil-
liseconds, 30 fps (33.33ms), 29.97 fps (NTSC color video; 33.37ms), 25 fps (most PAL
video; 40ms), 24 fps (film; 41.67ms), and 96 milliseconds.
Internal Filters: 4.0, 4.5-11.5, 12, 13, 14, 15, 20kHz provide anti-aliasing for low sample
rate services, such as Eureka-147 (24kHz mode), and the proposed AM IBOC (32kHz)
and shortwave IBOC systems.
Internal Sample Rate: 48kHz.
Internal Resolution: 24-bit fixed point (Motorola DSP56009).
Input/Output Resolution: 20 bit, limited by Analog Devices sample rate converters.
Peak Control Accuracy: If output samples are synchronous with internal samples, maxi-
mum overshoot of any output sample is 0.1dB. This is true at 48kHz output sample rate.
If sample rate conversion after internal processing makes output samples asynchronous
with internal samples, output samples can overshoot as much as 1 dB (0.3B typical).
Phase Response: All processing is linear-phase (constant group delay).
Internal Processing: Input
→
Two-Band defeatable AGC
→
Four-Band Equalizer
→
Multi-
band Compressor
→
Look-ahead Limiter
→
Output.
Multiband Compressors: Three available: Five-Band, Two-Band, and Protect, selectable
by mute-free crossfade.
Equalizers: Shelving Low Bass Eq, selectable 12dB or 18dB/octave; Shelving Mid Bass
Eq; Parametric Midrange Eq with analog-style bell-shaped curves; Parametric High
Frequency Eq with analog-style bell-shaped curves
Number of Factory Presets: 26, each with 19-step LESS-MORE control. Presets are fully
customizable with FULL CONTROL.
Number of User Presets: 32 memory locations to save customized presets.
Analog Audio Input
Configuration: Stereo.
Impedance: Electronically balanced 600
Ω
or >10k
Ω
load impedance, selected using a
configuration jumper.
Nominal Input Level: Software adjustable (via AI REF control)
−
9dBu to +13dBu VU
(
−
1dbu to +21dBu PPM).