Certain specifications are presented here to assure the engineer that they are reasonable, to help plan the installation, and make certain comparisons with other processing equipment.
PERFORMANCE
Except as noted, specifications apply for measurements from the analog left/right input to the analog left/right output.
Frequency Response (Bypass Mode;
Analog Processing Chain): ±0.2 dB,
50 Hz-9.5 kHz, or as determined by
user-settable high-pass and low-pass
filters.
Frequency Response (Bypass Mode;
Digital Processing Chain): ±0.2 dB,
5 Hz - 15 kHz, or as determined by
user-settable low-pass filter.
Noise: Output noise floor
will depend upon how much gain the processor
is set for ( Limit Drive, AGC Drive,
Two-Band Drive, and/or Multiband Drive),
gating level, equalization, noise reduction,
etc. The dynamic range of the A/D Converter,
which has a specified overload-to-noise
ratio of 110 dB, primarily governs it. The
dynamic range of the digital signal
processing is 144 dB.
Total System Distortion
(de-emphasized, 100% modulation):
<0.01% THD, 20 Hz-1 kHz, rising to <0.05% at
9.5 kHz. <0.02% SMPTE IM Distortion.
Total System L/R Channel Separation:
>50 dB, 20 Hz - 9.5 kHz; 60 dB
typical.
Polarity (Bypass Mode and
Digital-Channel Processing):
Absolute polarity maintained. Positive-going
signal on input will result in
positive-going signal on output. The analog-channel
processing employs phase rotation to
maximize loudness so the polarity on this
channel will be frequency-dependent.
Processing Sample Rate: The
9400 is a “multirate” system, using internal
rates from 32 kHz to 256 kHz as appropriate
for the processing being performed. Audio
clippers operate at 256 kHz.
Processing Resolution:
Internal processing has 24 bit (fixed point)
or higher resolution; uses Motorola DSP56362
DSP chips.
Low-Pass Filter (processing for
analog modulation): 4.5, 5.0, 5.5,
6.0, 6.5, 7.0, 7.5, 8.0, 8.5, 9.0, or 9.5 (NRSC)
kHz as set by user. Unit can be set up to
comply easily with ITU-R and NRSC spectrum
masks. Filter can be set to be -0.1 dB,
-3.0, or -6.0 dB down at the edge of the
passband, trading off ringing against
brightness.
Low-Pass Filter (processing for
digital modulation): 15 kHz.
High-Pass Filter (processing for
analog modulation): Constrained by
user settable fifth-order "quasi-elliptical"
highpass filter to 50, 60, 70, 80, 90, or
100 Hz. All filters have equal-ripple (Chebychev-like)
passbands, and 25 and 35 Hz notches for
transmitter protection.
High-Pass Filter (processing for
digital modulation): 1 Hz, not
user-adjustable.
Processing Topology: The
stereo enhancer and two-band AGC are common
to the analog and digital processing chains.
The processing path splits after the AGC.
The analog path receives equalization,
five-band compression, distortion-controlled
and -canceled clipping, overshoot
compensation, and transmitter equalization.
The digital path receives equalization,
five-band compression, and look-ahead
limiting. The parameters of the equalizers,
five-band compressors, and peak limiters in
the two paths are separately and
independently adjustable.
Processing Delay (processing for
analog modulation): approximately
17 ms.
Processing Delay (processing for
digital modulation): approximately
15 ms. Monitor output with 5 ms. delay emits
the digitally-processed signal before the
look-ahead limiter.
Installation
Analog Audio Input
Configuration: Stereo.
Impedance: >10kΩ load
impedance, electronically balanced.1
Nominal Input Level:
Software adjustable from –9.0 to +13.0 dBu
(VU).
Maximum Input Level: +27 dBu.
Connectors: Two XLR-type,
female, EMI-suppressed. Pin 1 chassis
ground, Pins 2 (+) and 3 electronically
balanced, floating and symmetrical.
A/D Conversion: 24 bit 128x
oversampled delta sigma converter with
linear-phase anti-aliasing filter. Converter
outputs 64 kHz sample rate, which the 9400
then decimates to 32 kHz in DSP using an
ultra-high-quality image-free synchronous
sample rate converter.
Filtering: RFI filtered,
with high-pass filter at 0.15 Hz (-3 dB).
Analog Audio Output
Configuration: Two
stereo pairs, capable to driving two
transmitters.
Source Impedance: 50Ω,
electronically balanced and floating.
Load Impedance: 600Ω or
greater, balanced or unbalanced. Termination
not required or recommended.
Output Level (100% peak modulation):
Adjustable from -6 dBu to +24 dBu
peak, into 600 W or greater load,
software-adjustable.
Signal-to-Noise: >= 90 dB
unweighted (Bypass mode, de-emphasized, 20
Hz-9.5 kHz bandwidth, referenced to 100%
modulation).
L/R Crosstalk: <= -70 dB,
20 Hz-9.5 kHz.
Distortion: <= 0.01% THD
(Bypass mode, de-emphasized) 20 Hz-9.5 kHz
bandwidth.
Connectors: Four XLR-type,
male, EMI-suppressed. Pin 1 chassis ground,
Pins 2 (+) and 3 electronically balanced,
floating and symmetrical.
D/A Conversion: 24 bit 128x
oversampled.
Filtering: RFI filtered.
Digital Audio Input
Configuration: Stereo
per AES3 standard, 24 bit resolution,
software selection of stereo, mono from
left, mono from right or mono from sum.
Sampling Rate: 32, 44.1,
48, 88.2, or 96 kHz, automatically selected.
Connector: XLR-type,
female, EMI-suppressed. Pin 1 chassis
ground, pins 2 and 3 transformer balanced
and floating, 110Ω impedance.
Input Reference Level:
Variable within the range of -30 dBFS to -10
dBFS.
J.17 De-emphasis:
Software-selectable.
Filtering: RFI filtered.
Digital Audio Outputs
Configuration: Stereo
per AES3 standard.
Sample Rate: Internal free
running at 32, 44.1, 48, 88.2 or 96 kHz,
selected in software. Can also be synced to
the AES3 digital input at 32, 44.1, 48, 88.2
or 96 kHz, as configured in software.
Word Length: Software
selected for 24, 20, 18, 16 or 14-bit
resolution. First-order highpass
noise-shaped dither can be optionally added.
Dither level automatically adjusted
appropriately for the word length.
Configuration: Both outputs
can be switched independently to emit either
the signal processed for analog modulation,
the signal processed for digital modulation,
or the low-delay monitor signal.
Connector: Two XLR-type,
male, EMI-suppressed. Pin 1 chassis ground,
pins 2 and 3 transformer balanced and
floating, 110Ω impedance.
Output Level (100% peak modulation):
-20.0 to 0.0 dBFS software controlled.
Filtering: RFI filtered.
Remote Computer Interface
Configuration: TCP/IP
protocol via direct cable connect, modem, or
Ethernet interface. Suitable null modem
cable for direct connect is supplied. Modem
is not supplied.
Serial Port: 115 kbps
RS-232 port dB-9 male, EMI-suppressed.
Ethernet Port: 10 or 100
Mbit/sec on RJ45 female connector.
Remote Control ( GPI) Interface
Configuration: Eight (8)
inputs, opto-isolated and floating.
Voltage: 6-15V AC or DC,
momentary or continuous. 9 VDC provided to
facilitate use with contact closure.
Connector: DB-25 male,
EMI-suppressed.
Control: User-programmable
for any eight of user presets, factory
presets, bypass, test tone, stereo or mono
modes, analog input, digital input.
Filtering: RFI filtered.
Power
Voltage: 100-132 VAC or
200-264 VAC, switch-selected on the rear
panel, 50-60 Hz, 40 VA.
Connector: IEC,
EMI-suppressed. Detachable 3-wire power cord
supplied.
Grounding: Circuit ground
is independent of chassis ground, and can be
isolated or connected with a rear panel
switch.
Safety Standards: ETL
listed to UL standards, CE marked.
Environmental
Operating Temperature:
32 ° to 122 ° F / 0 ° to 50 ° C for all
operating voltage ranges.
Humidity: 0-95% RH,
non-condensing.
Dimensions (W x H x D): 19"
x 3.5" x 14.25" / 48.3 cm x 8.9 cm x 36.2
cm. Two rack units high.
Humidity: 0-95% RH,
non-condensing.
RFI / EMI: Tested according
to Cenelec procedures. FCC Part 15 Class A
device.
Shipping Weight: 19 lbs /
8.7 kg
Warranty
Two Years, Parts and Service: Subject to the limitations set forth in Orban's Standard Warranty Agreement.
Because engineering improvements are ongoing, specifications are subject to change without notice.
1 No jumper selection available for 600Ω . Through-hole pads are available on I/O module for user-installed 600Ω termination.
