Crest Audio GT Owner's Manual
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Crest Audio GT Owner's Manual

Crest Audio GT Owner's Manual

Century series
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C
S
E N T U RY
E R I E S
SP TC GT
O
'
M
WNER
S
ANUAL

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  • Page 1 E N T U RY E R I E S SP TC GT ’ WNER ANUAL...
  • Page 2 Congratulations on your purchase of a Century Series console. All of us at Crest Audio in Paramus, New Jersey, USA, support your decision, knowing your console contains the finest combination of design and manufacture in the industry. While your new Century Series console is one of the most feature-packed available, great effort has been put into making it simple to operate.

  • Page 3: Table Of Contents

    Glossary The specific details of console operation are described here. Schematics Lists available schematics for SP/TC/GT Console Modules & Power Supply O N T E N T S Appendix A Appendix B...

  • Page 4: Feature Overview

    SP / TC / GT Feature Overview The SP / TC / GT features listed below are common to all Century Series Consoles. • SSM/PMI High quality preamplifiers on balanced micro- phone/line inputs and on all balanced outputs for uncompro- mised audio quality and reliability.

  • Page 5: Wiring Conventions

    Wiring Conventions Since the same connectors are used throughout the professional audio industry, it is important to know how the connectors for Crest’s Century SP, TC, and GT consoles are wired. The wiring is as follows. INPUT XLR TIP - POSITIVE...
  • Page 6 Crest Audio’ Century Series makes use of two different power supplies. The model and frame size of your particular console determines which of the two supplies should be used. SP, TC, and GT consoles use power supplies as follows: Consoles with frame sizes of 24 or 32 modules use supply model XCVA04;...

  • Page 7: Power Connections

    Always connect the console to the power supply before switching on the power supply. Do not run the power supply if it is not connected to the console. Multiple power supplies can be daisy-chained to provide fail- safe protection in the event of a supply failure.

  • Page 8: System Connections

    SP / TC / GT System Connections The console is the hub of a sound system and because it controls most of the variables within a system, proper connection and component relationships are vital to assure accurate operation and results. The following diagrams illustrate conventional system connections.
  • Page 9 Clip/Limit Signal Temp/DC Active Ch A Ch B Center From Local Monitor Out ENTURY SP / TC / GT Aux 1-4 out to monitor amplifiers MONO OUT RIGHT OUT LEFT OUT GROUP OUT GROUP OUT GROUP OUT GROUP OUT GROUP OUT...

  • Page 10: Sp Input Module

    SP / TC / GT LINE +48V GAIN - 0 + - 0 + - 0 + - 0 + EQ IN 1•3 2•4 3•4 POST AUX SENDS SP Input Module 1•3 The SP input module is the most straightforward of the Century Series.

  • Page 11: Signal Present Led

    This jack accepts balanced and unbalanced BAL LINE IN line level inputs and delivers it into the associated input channel. Bal Mic In BAL MIC IN This connector accepts balanced micro- phone inputs for the associated input chan- nel. SP / TC / GT...

  • Page 12: Tc Input Module

    SP / TC / GT LINE +48V GAIN Ø - 0 + AUX SENDS - 0 + EQ IN 1•3 2•4 3•4 POST AUX SENDS TC Input Module 1•3 The TC input module is the intermediate input module in the Century Series.
  • Page 13 Used for control of all outputs of the channel except those Aux output sections selected by switch to a pre fader position. (The Insert Output level is not affected by the fader position.) SP / TC / GT Rear Connections Direct Out This jack provides the direct output signal (post fader &...

  • Page 14: Gt Input Module

    DIRECT AUX SENDS 1•3 GT Input Module The GT input Module is the most feature-filled within the Century Series. Designed for demanding FOH applications, 2•4 the GT Series retains the simplicity of the whole Crest Console line while offering all the features of a high-end unit.
  • Page 15 This jack accepts balanced and unbalanced BAL LINE IN line level inputs and delivers it into the associated input channel. Bal Mic In BAL MIC IN This connector accepts balanced micro- phone inputs for the associated input chan- nel. SP / TC / GT...

  • Page 16: Gt Stereo Input Module

    SELECT MONO 1•3 GT Stereo Input Module The GT Stereo Input Module is essentially two GT Input Modules fit into one module space. This module is very use- 2•4 ful for accepting remote feeds, effects inputs and other sig- nals that require stereo handling.
  • Page 17 BAL LINE IN R Bal Mic In This connector accepts balanced microphone inputs for the associated input channel. BAL MIC IN L BAL MIC IN R SP / TC / GT...
  • Page 18 SP / TC / GT GROUP 2•4 3•4 POST LEVEL MUTE GAIN PEAK EFX RETURN - 0 + - 0 + MUTE MONO L - R MONO L - R 1 - 2 3 - 4 5 - 6 7 - 8 1•3...

  • Page 19: Sp/Tc Group Module

    -10 dB level and delivers the signal to the EFX return section. The female XLR connector accepts a balanced signal at +4dB EFX RETURN level and delivers the signal to the EFX return section of the group. SP / TC / GT...

  • Page 20: Gt Group Module

    MUTE PEAK EFX RETURN GT Group Module The GT group module has many of the same features as the SP/TC group module. Primarily it is the Matrix Section and 2•4 the Scene Mute controls that separate this group module from the SP/TC.
  • Page 21 EFX return section of the group. Bus In This connector accepts a balanced signal at +4dB level, and then sums it with all the other signals assigned to the associated groups. BUS IN SP / TC / GT...
  • Page 22 SP / TC / GT MATRIX GROUPS 1-4 GROUPS 5-8 MATRIX AUX IN MAINS MONO MUTE TB ENB PGM IN LEFT MONO RIGHT PEAK GROUPS 1-4 GROUPS 5-8 ENTURY ERIES...

  • Page 23: Matrix Module

    Aux In 2 This connector accepts a balanced signal at +4dB level, and then sums it with all the other signals in the matrix output. AUX IN 1 AUX IN 2 SP / TC / GT...
  • Page 24 SP / TC / GT LEFT RIGHT LAMP DIM POWER PFL ON AFL1 AFL3 AFL2 AFL4 AFLO N AFLO N AFL5 AFL5 AFL6 AFL6 AFL ON AFL ON MASTERS MASTERS AFL1 AFL2 AFLO N HEADPHONES AFL5 PHONES AFL6 AFL ON...

  • Page 25: Sp/Tc Master Section

    These eight connec- tions provide the balanced output sig- nals from their respective auxiliary buses. SP / TC / GT RIGHT OUT LEFT OUT RIGHT INSERT LEFT INSERT AUX 3 OUT AUX 1 OUT AUX 4 OUT AUX 2 OUT...
  • Page 26 SP / TC / GT LEFT RIGHT LAMP DIM POWER PFLON MATRIX MATRIX MATRIX GAIN AUX SCENE AUX SCENE ACTIVE ACTIVE - 0 + - 0 + MONO L - R 1•2 3•4 MATRIX MUTES MUTES A - B AFL1...

  • Page 27: Gt Master Section

    ENTURY ERIES GT Master Section This master section is the control center for most of the GT’s advanced functions. Left & Right Meters Monitors the post-fader output of the Left & Right channels, and any PFL’d signals, via a ten-segment LED array.
  • Page 28 SP / TC / GT GT Master Section (cont'd) L&R Mono Assignment Switches Assign the Left and Right signals to the Mono output.. L/R/Mono Matrix Post Switches Switches the Left, Right and Mono matrix signals between pre and post fader.

  • Page 29: Technical Information

    GT TC SP Appendix A Technical Information...
  • Page 30 100mm long throw fader for each of the three master outputs and a com- prehensive talkback system. 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.
  • Page 31 100mm long throw fader for each of the three master outputs and a comprehensive talkback system. The 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.
  • Page 32 PPENDIX 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.
  • Page 33 SP / TC / GT ENTURY ERIES GT / TC / SP Block Diagram PPENDIX...
  • Page 34 SP / TC / GT ENTURY ERIES PPENDIX...
  • Page 35 ENTURY ERIES Rear Views & Dimensions .75in. 19mm SP / TC / GT Size 33.55" 31.80" 43.15" 41.40" 52.75" 51.00" 57.55" 55.80" 67.15" 65.40" 81.55" 79.80" Size 852mm 808mm 1096mm 1052mm 1340mm 1295mm 1462mm 1417mm 1706mm 1661mm 2071mm 2027mm Crest Consoles Engineering, May 5, 1997 1.5in./38mm...
  • Page 36 SP/TC/GT USER-OPTIONS SP, TC, and GT consoles are shipped having standard configuration unless specified at time of order. These are ways that the console configuration may be varied after manufacture. The items listed are internal options selected by gold jumper links.
  • Page 37 MONITOR B RIGHT MONITOR A RIGHT RETURN 2 OSC IN EXT TB IN EXT TB OUT Lower Screw IMPORTANT SP / TC / GT Light Bar DIR OUT BAL OUT BAL OUT LEFT BAL OUT LEFT INSRT SND INSR INSERT SEND...
  • Page 39 Appendix B Glossary...
  • Page 40 Auxiliary Mute Switches The Master Section of the GT consoles have mute switches for each Aux send. When depressed, this switch mutes the corre- sponding Aux Send Master. When the mute is engaged no sig- nal leaves the associated Aux out jack and a red LED illumi- nates to the left of the switch.
  • Page 41 EQ, while the outer knob controls the center frequency adjusted by the inner knob. These center frequencies are printed on the module around the outer knob. The GT input module has the frequency sweep knobs on all four bands, while the TC input module has them only on the mid-frequen- cies.
  • Page 42 Internal Oscillator The GT master section has a 1 kHz internal oscillator. This oscillator can be used as signal source to run tests, diagnostics or calibrations. The oscillator can be assigned to all Groups, Auxes and Matrices via the Talkback assignment switches.
  • Page 43 Dim switch has not been pressed. Talkback Microphone Input Found on the master section (GT) and under the arm rest on the right side, these balanced XLR inputs allow for a micro- phone or other balanced mic-level source to be connected to the talkback system.
  • Page 44 SP / TC / GT ENTURY ERIES PPENDIX...
  • Page 45 INPUT CONNECTOR PCB STEREO INPUT CONNECTOR GROUP CONNECTOR PCB LEFT / RIGHT CONNECTOR PCB MONO CONNECTOR PCB MASTER CONNECTOR PCB MATRIX CONNECTOR PCB RIBBON PIN OUTS SP / TC / GT DWG # REV # 76D1530 76D1920 76D1919 76D1919 76D1922 76D1921...
  • Page 46 Crest Audio Inc. 100 Eisenhower Dr., Paramus NJ 07652 USA : 201.909.8700 : 201.909.8744 http://www.crestaudio.com Printed in USA SP/TC/GT Owners Manual Copyright © 1997 Crest Audio Inc. v. 2.2 11/3/97 - D7000001 *D7000001*...

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