Crest Audio CENTURY SERIES GTX - TECHNICAL Technical Data

C
E N T U R Y
T S
E C H N I C A L
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
NOISE
(22Hz to 22kHz)
Mic EIN
Mix Bus Output Noise (20 ch routed)
Aux Bus Output Noise (20 ch routed)
CROSSTALK
(Measured at 1kHz)
Channel Mute
Channel Fader Attenuation
Channel Routing
Channel Aux Send Attenuation
INPUT/OUTPUT IMPEDANCES
Mic Input
Line Input
Outputs
INPUT/OUTPUT LEVELS
Mic Input Sensitivity
Line Input Sensitivity
Input Insertion Point Level
Output Insertion Point Level
Nominal Output Level
Maximum Balanced Output Level
Load support recommendations have been
supplied to assist in road case construction.
All specifications subject to change without notice. © 1997 Crest Audio Inc.
The GTx live sound console shall be constructed in modular fashion and be housed in a steel frame with molded plastic side panels. The console shall be usable in a 'tabletop' set up or with optional
stands. Standard output module configuration will occupy 12 module positions including a standard 2 channel output matrix system. The console shall be black with white labeling and utilize XLR light-
ing device connectors with dimmer system. A meter bridge shall be included that monitors console signals using mechanical meters with solid state illumination. Signals to be monitored include Left
output, Right output, Mono (Center) output, Stereo PFL signal and 8 group output signals. On 52 and 64 module position frames, 8 auxiliary output meters are also to be provided. The console shall
have a pair of XLR talkback mic and headphone jack connectors, with one set being located beneath the far right side of the armrest and a second pair on the top panel of the console. The GTx live
sound console shall feature a defeatable Left-Center-Right (LCR) panning system. On each input channel: All microphone inputs shall be electronically balanced and accessed via 3-pin XLR connectors
and have an EIN of -129 dBm. All input channel line inputs shall be electronically balanced and accessed via 1/4" TRS jacks. Input module insert and return points shall be via individual 1/4" jacks and
controlled by a front panel switch with LED. Additional input controls include: a +48 volt phantom power switch, a -15 dB pad switch (-20 dB for stereo input channels), adjustable high pass filter con-
trol (20-400Hz) with on switch and LED, a polarity reverse switch with LED, and 4-band sweep EQ (LF- 40-800Hz, LMF- 100Hz-2kHz, HMF- 400Hz-8kHz, HF- 1.5k-20kHz) with peak/shelve switches on
the high and low EQ bands, switchable bandwidth on low-mid and high-mid bands, and an EQ In switch with LED. Each input channel shall also have a FET controlled (10 millisecond ramp) mute switch
with LED, affecting all assigned outputs including auxiliary sends. Assignment switching is provided to the following output sections: Left/Right, Mono, Subgroup 1, Subgroup 2, Subgroup 3, Subgroup
4, Subgroup 5, Subgroup 6, Subgroup 7 and Subgroup 8. An LCR switch reconfigures the Left/Right and Mono assignment system to a true Left/Center/Right mix system. A Pan On switch allows con-
ventional panning between any odd and even subgroup assignment regardless of the position of the LCR configuration switch. A 5-segment signal level LED indicator is provided to monitor signal lev-
els, and a multiple sample point peak LED is provided to monitor potential overload situations. Input modules also include a PFL switch with LED indicator, 4 scene mute preset switches, scene mute
safe switch with LED, and a 100mm long throw fader. Each input channel shall have eight auxiliary send level controls. The aux send section shall include three pre/post fader switches: one for auxes 1-
4, one for 5&6, and one for 7&8. The aux sends shall be internally selectable 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 direct-
ly control the output of the 1/4" direct output connector. Optional stereo input modules will be available. The console shall be configured in an eight bus arrangement. The effect return section of each
group module shall have a gain control, a two-band fixed EQ, sub-group assignment switches, L/R and Mono assignment switches with an LCR configuration switch, aux send level controls for Auxes
1 through 4 with 1-2 switchable to 5-6, and 3-4 switchable to 7-8, a pan control, a level control, a dynamic signal present LED and peak LED, and a PFL switch. 4 scene mute switches (A-D) with scene
mute safe switch with LED will be available on each return section. The group mix section of the module shall have a pan control, a FET controlled (10 millisecond ramp) mute switch with LED, assign-
ment switches for Left/Right and Mono with an LCR configuration switch. Each group mix section will have balanced (XLR) group insert connections. There will be a send level control for two Matrix
mixes (A & B) on each group module with source selection matrix post fader switch. It shall also have a fader reverse switch with LED that allows the group fader to control the level of the modules
effect return. A PFL switch, dynamic signal present LED and peak LED, and a 100mm long throw fader shall also be provided on the group module. The master section shall have the following features:
eight aux master controls with associated AFL switches and eight aux scene mute switches with LED's, a 100mm long throw fader for each of the Left, Right, and Mono (Center) master outputs, bal-
anced (XLR) insert connections for Left, Right, and Mono (Center) master outputs, an assignable comprehensive talkback system, monitor control (with balanced XLR output), stereo program input sec-
tion with Stereo EQ, lamp dimming control, and four+two aux scene mute master switch section, each with LED. Two master matrix output sections include level control, Mute switch with LED, AFL
monitor switch and peak and signal present LED indicators. The two Matrix output signals are to be derived from the consoles group output signals, left, right, and mono output signals. Additional
matrix output modules may be installed in the console frame if unused space is available. The standard power supply shall be housed in a 14 ga. steel chassis that shall occupy 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 addition-
al interface hardware other than interface cable. The live sound console shall be: the Crest Audio Century GTx.
Crest Audio specifications are available in electronic form on our website: http://www.crestaudio.com

Technical Data

P E C I F I C AT I O N S
<0.01%
-129 dBu
-80 dBu
-80 dBu
>102 dB
>96 dB
>85 dB
>93 dB
4kΩ balanced
>10kΩ balanced
140Ω balanced
(0VU = +4 dBu, 1.23V RMS)
+4 to -62 dBu
+12 to -38 dBu
+4 dBu
-2 dBu
+4 dBu
+28 dBu
Architect's & Engineer's Specifications - Centur y GTx
S
E R I E S
Sheet
C
Century GTx Consoles are available
in the following eight-bus configurations:
All Century GTx Consoles are available with
stereo input modules and additional matrix modules.
The following table contains dimensions
for all Century GTx consoles. (L x W x H)
Frame Size Imperial
44 58" x 30.21" x 12.75"
52 67" x 30.21" x 12.75"
64 82" x 30.21" x 12.75"
All information per
Crest Consoles Engineering,
May 5, 1997
1.30"/ 33mm
4.8125"
122mm
4.5625"
116mm
2.25"/57mm
35
GTx
O N F I G U R AT I O N S
32 INPUTS (44 FRAME)
40 INPUTS (52 FRAME)
52 INPUTS (64 FRAME)
D
I M E N S I O N S
Metric
1460 x 767 x 324mm
1700 x 767 x 324mm
2070 x 767 x 324mm
30.21"/767mm
DO NOT APPLY ANY
LOADS TO METER
BRIDGE ASSEMBLY
SUPPORT ACROSS THIS DIMENSION IS RECOMMENDED
24.75" / 629mm
28.0" / 711mm
29.5625" / 751mm
Weight
Net lbs./kg
230/104.4
275/124.9
295/133.9
12.6875"
322mm
12.5625"
319mm
5.125"
130mm
.65"/17mm
10