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APPENDIX A
CENTURY SERIES
General Specifications -
GT Console
The following are the technical specifications for the Century
GT console.
Frequency Response
+0.0, -0.5dB, 20Hz to 20 kHz (referenced to 1kHz)
Total Harmonic Distortion
Mic input to Group output
20Hz to 20 kHz at +15dBu <0.01%
Noise (22Hz to 22kHz)
Mic EIN -129 dBu
Mix Bus Output Noise (20 ch routed) - 80 dBu
Aux Bus Output Noise (20 ch routed) - 80 dBu
Crosstalk (Measured at 1kHz)
Channel Mute >102 dB
Channel Fader Attenuation > 96 dB
Channel Routing > 85 dB
Channel Aux Send Attenuation > 93 dB
Input/Output Impedances
Mic Input 4kΩ balanced
Line Input >10kΩ balanced
Outputs 140Ω balanced
Input/Output Levels (0VU = +4 dBu, 1.23V RMS)
Mic Input Sensitivity + 4 to -62 dBu
Line Input Sensitivity + 12 to -38 dBu
Input Insertion Point Level + 4 dBu
Output Insertion Point Level - 2 dBu
Nominal Output Level + 4 dBu
Maximum Balanced Output Level +28 dBu
Configurations
GT Consoles are available in the following configurations:
Architect’s & Engineer’s
Specifications - GT Console
The following text should be used when specifying a Century GT
in a bid or proposal.
The live sound console shall be constructed in a modular fashion and be
housed in a steel frame with molded plastic side panel/carrying handles.
The console shall be black with white labeling and utilize XLR lighting
device connectors. The console shall have an XLR talkback mic connector
and a headphone jack. These shall be located beneath the far right side of
the armrest.
All microphone inputs shall be electronically balanced and accessed via 3-
pin XLR connectors and have an EIN of -129 dBm. All line inputs shall be
electronically balanced and accessed via 1/4" TRS jacks. The insert points
shall be via 1/4" TRS jacks.
Each input channel shall have: a +48 volt phantom power switch, a -15 dB
mic pad switch, a 80Hz high pass filter switch, a polarity reverse switch
and 4-band (LF-40-800Hz, LMF-100Hz-2kHz, HMF-400Hz-8kHz, HF-
1.5k-20kHz) sweepable EQ with peak/shelve switches on the high and low
controls and an EQ In switch. Each input channel shall also have: a FET
controlled (10 millisecond ramp) mute switch with LED, sub-group
assignment switches, a L/R assignment switch, a dedicated mono assign-
ment switch, a dynamic signal present LED and peak LED, a PFL switch,
4 scene mute switches (A-D), scene mute safe switch with LED, and a
100mm long throw fader.
Each input channel shall have eight auxiliary sends which shall be con-
trolled via six knobs and four switches. The aux sends shall have a
pre/post fader switch for every four sends. The aux sends shall be selec-
table pre or post EQ and pre or post mute. There shall be an Aux 8 direct
switch that shall allow the Aux 8 rotary knob to directly control the output
of the 1/4" direct out TRS jack.
The console shall be available in four or eight bus configurations. Each
group module shall have a ten-segment LED meter array. The effect return
section of each group module shall have a gain control, a two-band fixed
EQ, sub-group assignment switches, a L/R assignment switch, a dedicated
mono assignment switch, two aux send controls, a pan control, a level con-
trol, a dynamic signal present LED and peak LED, and a PFL switch. The
remainder of the group module shall have a pan control, an FET controlled
(10 millisecond ramp) mute switch with LED, assignment switches for:
mono, L/R, Group XLR and matrix post. It shall also have a fader reverse
switch with LED. A PFL switch, dynamic signal present LED and peak
LED, 4 scene mute switches (A-D), scene mute safe switch with LED, and
a 100mm long throw fader shall also be provided on the group module.
The master section shall be four modules in width and have the following
features: an 11x2 matrix, eight aux master controls with associated AFL
switches, eight aux scene mute switches with LED, a 100mm long throw
fader for each of the three master outputs, a fully assignable comprehen-
sive talkback system, a talkback mic connection, a headphone jack, stereo
program input control, and five scene mute master switches each with
LED.
The power supply shall be housed in a 14 ga. steel chassis that shall occu-
py two 19" rack spaces. The power supply shall have the ability to be
daisy-chained to additional power supplies to provide a fail-safe operating
environment. Connection of two or more power supplies shall not require
additional interface hardware other than the provided cable.
The live sound console shall be: the Crest Audio Century GT.
Four Subgroup 16, 24, 32, 36, 44, or 56 inputs
Eight Subgroup 12, 20, 28, 32, 40, or 52 inputs
Optional stereo input modules and matrix modules are available.