Crest audio GT Technical Data Sheet

CENTURY SERIES

Technical Data

TECHNICAL SPECIFICATIONS

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

Sheet

CONFIGURATIONS

Century GT Consoles are available in the following configurations:

FOUR SUBGROUP

16, 24, 32, 36, 44, or 56 inputs

EIGHT SUBGROUP

12, 20, 28, 32, 40, or 52 inputs

All Century GT Consoles are available with stereo input modules and matrix modules.

DIMENSIONS

The following table contains net dimensions

for all Century GT consoles. (L x W x H)

Frame Size Imperial Metric Weight

Net lbs./kg

24 34” x 29.63” x 9.5” 850 x 753 x 241mm 160/72.6 32 44” x 29.63” x 9.5” 1100 x 753 x 241mm 175/79.5 40 53” x 29.63” x 9.5” 1350 x 753 x 241mm 210/95.3 44 58” x 29.63” x 9.5” 1460 x 753 x 241mm 230/104.4 52 67” x 29.63” x 9.5” 1700 x 753 x 241mm 275/124.9 64 82” x 29.63” x 9.5” 2070 x 753 x 241mm 295/133.9

All information per

Crest Consoles Engineering,

May 5, 1997

KNOB HEIGHT 0.75"/19mm & 1.25"/32mm

2.375"/60mm

2.25"/57mm

The live sound console shall be constructed in a modular fashion and be housed in a steel frame with molded plastic side panels. 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-100Hz2kHz, 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 assignment 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 controlled 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 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 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 control, 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 comprehensive 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 occupy two 19” rack spaces. The standard power supply shall have the ability to be daisy-chained to additional power supplies to provide a failsafe 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.

Crest Audio specifications are available in electronic form on our website: http://www.crestaudio.com

35°

29.563" / 751mm

Architect’s & Engineer’s Specifications - Century GT

29.625"/752mm

24.75"/ 717mm

28.0"/ 711mm

10.25"/260mm

6.25"/159mm

3.25"/83mm

1.125"/29mm

2.437" 62mm

9.5"

241mm

For use on an 11 inch x 17 inch sheet, print this page out at 130%

Century GT Console Block Diagram

Crest Audio reserves the right to make changes or improvements

in manufacturing or design which may affect specifications.

OSC IN

1KHZ

OSC

EXT TB IN

(FRONT)

TB MIC

MIC PRE

(TOP PANEL)

TB MIC

PIN 2 HOT ON ALL XLRS

TIP IS SEND, RING RETURN ON ALL INSERTS

USER OPTIONS IMPLEMENTED WITH REMOVABLE SHUNTS

CENTURY GT BLOCK DIAGRAM

CREST AUDIO

ROTARY

POT PAD LED AMP

BAL DRIVER

DIRECT OUT

INSERT

BAL LINE IN

PREAMP

INPUT

LEGENDS

(TOP PANEL)

MON RIGHT

PHONES

(FRONT)

+48v

MON LEFT

LOCAL

PHONES

LEVEL

OPTION

XFORMER

BAL OUT

MATRIX B

INSERT

OPTION

XFORMER

BAL OUT

MATRIX A

INSERT

SWITCH

OPTION

USER

FADER

FET MUTE

FET DIM

FREQ

LINE

HPF Ø

LF L MID H MID HF PEAKPEAK

FOUR BAND EQ

6 - 60DB

GAIN

LEVEL

PAD

OPTION

15dB

XFORMER

TO PEAK

BAL MIC IN

PRESENT

SIGNAL

+48V

GT INPUT MODULE

3-4

*D5000001*

100 Eisenhower Dr., Paramus NJ 07652 USA

TEL

: 201.909.8700

http://www.crestaudio.com

∑

GT MASTER MODULE

PFL

PFL RIGHT

PFL LEFT

PFL DC

DIRECT

+10

BUS ASSIGN

SWITCHES

FADER AMP

PAN

MONO L-R 1-2 3-4 5-6 7-8

EQ IN

PFL

PEAK

PFL RIGHT

PFL LEFT

PFL DC

EQ FDR

SOURCE

PRE

NO YES

PRE SOURCE AMP

MUTE ?

DIRECT

AUX 8

POST

PRE

1-4

5-8

2-4

1-3

567

AUX 8

AUX

3-4

PRE

MUTE

SAFE

ABCD

MUTE SCENES

OSC

EXT TB

OUT

AUX

EXT TB

OUT

MUTE MASTERS

SCENE

EXT TB

LEVEL

TB ON

TB ASSIGN

SWITCHES

MUTE

MONO

DIM

MONO L-R 1-2 3-4 5-6 7-8GRPS

AUXES

MATRIX

RIGHT

LEFT

PFL MIX R

MON LEVEL

LOCAL

DEFEAT

PFL

PFL DCPFL

PFL MIX L

∑

LEVEL

TO L & R METERS

MATRIX B

PEAK

MUTE

MIX AMP

MATRIX B

PRESENT

MATRIX B

SIGNAL

MATRIX A

MUTE

MATRIX A

LEVEL

PFL

PRESENT

SIGNAL

PEAK

PFL RIGHT

PFL LEFT

PFL DC

∑

MIX AMP

MATRIX A

RIBBON CABLES

MONO BAL

MIX AMP

MONO

OPTION

PRESENT

SIGNAL

XFORMER

∑

PFL RIGHT

PFL LEFT

PRESENT

SIGNAL

PEAK

FADER AMP

MONO

MUTE

INSERT

MONO L-R

STEREO RETURN

SWITCHES

ASSIGN

1-2 3-4

AUX

1-2

AUXES

AUX

LEFT/RIGHT

BLEND TO

MATRIX

A-B

MATRIX

POST

STEREO

MUTE

NO YES

MUTE?

POST

LEVEL BAL

PEAK

LF HF

GAIN

BAL OUT

STEREO

RETURN

AUX

MIX AMP

AUX

NO YES

PFL DC

MUTE

AUX

CONTROL?

SCENE

AUX

PFL

1 OF 4 AUXES PER MODULE SHOWN

1-2, 5-6 ON LEFT, 3-4, 7-8 ON RIGHT

GT MONO MODULE

L (R) BAL

MIX AMP

OPTION

L (R)

XFORMER

∑

PFL RIGHT

PFL LEFT

PFL DC

PRESENT

SIGNAL

PEAK

PFL

FADER AMP

MUTE

L (R)

INSERT

METER



MUTE SCENES

DCBA

SAFE

SENDS

AUX

MUTE

GT LEFT (RIGHT) MODULE

PEAK

MONO L-R 1-2 3-4 5-6 7-8

LEVEL

PAN

EFX

POST

HFLF GAIN

EFX RETURN

SEND

MATRIX

MUTE?

SWITCHES

POST

BUS ASSIGN

SWITCHES

EFX RTN

AUX

3-4

POST

AUX

+10

REVERSE

FADER

EFX EQ

PRESENT

SIGNAL

∑

PFL RIGHT

PFL LEFT

PFL DC

AFL

FROM AUX 2

X-FEED

MONO

MATRIX

SENDS

POST

NO YESMATRIX

MUTE?

POST

XFORMER

OPTION

BAL OUT

AUX

BAL OUT

BUS ASSIGN

GROUP

PAN

NO YES

BUS IN

MIX AMP

GROUP

BAL

∑

PFL RIGHT

PFL LEFT

PRESENT

SIGNAL

FADER AMP

GROUP

INSERT

PFL DC

PFL

GT GROUP MODULE

GROUP

XLR

-10

XFORMER

OPTION

BAL OUT

GROUP

MONO L-R

PEAK

REVERSE

FADER

+10

MUTE

GROUP

METER

Printed in USA

FAX

Crest Audio Inc.

: 201.909.8744

v. 2.1 11/19/97

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