Page 3 - A brief description of the Vx design, features and functions.; ABLE OF
P AGE 1 Feature Overview 2 A brief description of the Vx design, features and functions. Wiring Conventions 3 Contains diagrams indicating how connectors for Crest consoles are wired. Rear Panel Connections 4 Details the rear panel input and output connections to be made to the GTx console. Power Su...
Page 4 - GT; ENTURY; Feature Overview; • 48 Volt switchable phantom power on all microphone inputs.
GT X P AGE 2 C ENTURY S ERIES Feature Overview • Extensive Meter bridge provides signal level metering ofL E F T , R I G H T , C E N T E R / M O N O , S O L O L E F T , S O L ORIGHT, and 8 SUBGROUPS. The LEFT, RIGHT, CEN-TER/MONO and SOLO meters are of a larger size and arecentered on the meter brid...
Page 5 - Wiring Conventions; OUTPUT XLR; INPUT; Insert; ST; Stereo Program In
GT X P AGE 3 C ENTURY S ERIES Wiring Conventions Crest consoles are wired with connectors that are used throughout the professional audio industry. Wiring is as follows: 1 2 3 PIN 1 = GROUND PIN 2 = POSITIVE PIN 3 = NEGATIVE OUTPUT XLR INPUT XLR PIN 3 PIN 1 PIN 2 PIN 3 PIN 2 PIN 1 TIP - POSITIVE RIN...
Page 6 - REAR PANEL CONNECTIONS
GT X P AGE 4 C ENTURY S ERIES Input Module Connections Direct Out This 1/4-inch balanced TRS jack delivers the directoutput signal (post fader & post mute) from theassociated input channel. Insert Send This 1/4-inch jack is used for sending a post-inputpreamp, post Hi Pass Filter, pre-EQ signal ...
Page 7 - Matrix
GT X P AGE 5 C ENTURY S ERIES Master Module Connections Matrix Out (A&B) These two XLR connectors deliver a balanced signal from theassociated matrix sends. Mono Out This XLR connector delivers a balanced post-fader signal con-taining all signals assigned to the Mono clean bus. Right Out This XL...
Page 8 - Century Series Console Power Supply; Power Supply; Supply Identification; S a f e t y C o n s i d e r a t i o n s; Twin Supply Operation
GT X P AGE 6 C ENTURY S ERIES Century Series Console Power Supply Century Series consoles use a separate rack-mountable power supply which provides the specific voltages used by each console.Crest Consoles’ Century Series makes use of two different power supplies. All frame sizes (44, 52, 64) of the...
Page 9 - To AC Mains; Console Cooling; Ground Link
GT X P AGE 7 C ENTURY S ERIES Designed & manufactured in the USA by: A division of Crest Audio Inc. 100 Eisenhower Dr. Paramus, New Jersey 07652 USA POWER OUT POWER OUT RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION AVIS : RISQUE DE CHOC ÉLECTRIQUE—NE PAS OUVRIR WARNING TO REDUCE THE RISK OF FIRE OR...
Page 10 - System Connections; Signal Processors; Input Connections
GT X P AGE 8 C ENTURY S ERIES System Connections The console is the hub of a sound system. Because it controls most of the variables within a system, proper connection and com-ponent relationships are vital to assure accurate operation and results. The following diagrams illustrate conventional syst...
Page 11 - Output Connections
GT X P AGE 9 C ENTURY S ERIES Output Connections C E N T U R Y 10 0 5 10 20 30 15 40 60 10 0 5 10 20 30 15 40 60 10 0 5 10 20 30 15 40 60 10 0 5 10 20 30 15 40 60 10 0 5 10 20 30 15 40 60 10 0 5 10 20 30 15 40 60 10 0 5 10 20 30 15 40 60 10 0 5 10 20 30 15 40 60 10 0 5 10 20 30 15 40 60 10 0 5 10 20...
Page 12 - GTx Input Module
GT X P AGE 10 C ENTURY S ERIES GTx Input Module The input module is the main method by which input signalsare brought into the console. The GTx input module bringsseveral new features to the Century Series, including a 5-seg-ment LED signal meter array, Adjustable Hi Pass filter, Insertswitch, four-...
Page 13 - Switches the Aux 1&2 and Aux 3&4 signal sources between
GT X P AGE 11 C ENTURY S ERIES EQ IN Switch Inserts the EQ section into the input channel (post insert, prefader). An associated green LED illuminates when the switchis down. AUX SENDS 1&2 and 3&4 IndividualLevel Controls Adjusts signal level sent to respective Aux buses. The signalsource fo...
Page 14 - GTx Stereo Input Module
GT X P AGE 12 C ENTURY S ERIES GTx Stereo Input Module The GTx Stereo Input module is essentially two GTx Inputmodules packaged to fit into a one-module space. This mod-ule is very useful for accepting remote feeds, effects outputsand other signals that require stereo handling. 48V Phantom Power Swi...
Page 15 - Assigns the input signal directly to the Mono bus.
GT X P AGE 13 C ENTURY S ERIES PRE/POST Switch (1&2 / 3&4) Selects the Aux 1&2 and Aux 3&4 signal sources between postand pre-fader positions. PRE/POST Switch (5&6) Selects the Aux 5&6 signal sources between post and pre-faderpositions. AUX 5 - 8 Individual Level Controls Adj...
Page 17 - GTx Group Modules
GT X P AGE 15 C ENTURY S ERIES GTx Group Modules The Group Module is where input signals are combined andconfigured for grouped output; effects & aux assignment/rout-ing are also accomplished here. Fully loaded GTx consoleshave eight group modules. Group number is indicated on PFLswitch. Group M...
Page 19 - Matrix Module; Controls level of external balanced input signals.
Matrix Module The Matrix module allows the creation of an independent mixu s i n g t h e M a i n o u t p u t s a n d a n e x t e r n a l i n p u t s a s s i g n a lsources. Matrix Meter Shows output level of matrix module, 0dB=+4dBu. Matrix AUX IN Controls Controls level of external balanced input s...
Page 20 - AUX
GT X P AGE 18 C ENTURY S ERIES AFL 1 AFL 2 6 5 1 2 AUX MUTES AUX MUTE ACTIVE MATRIX 7 8 9 5 2 0 1 3 4 6 10 7 8 9 5 2 0 1 3 4 6 10 1 2 7 8 9 5 2 0 1 3 4 6 10 5 6 AFL ON A B 7 8 9 5 2 0 1 3 4 6 10 7 8 9 5 2 0 1 3 4 6 10 AFL 3 AFL 4 8 7 3 4 AUX MUTES AUX MUTE ACTIVE MATRIX 7 8 9 5 2 0 1 3 4 6 10 7 8 9 ...
Page 21 - GTx Master Section
GT X P AGE 19 C ENTURY S ERIES GTx Master Section The master section is the control center for the GTx console.Monitoring, talkback, PFL, Stereo Program In, Master Aux &Matrix, L-C-R, internal oscillator and Scene Muting functionsare all controlled here. Lamp Dim Control Controls the intensity o...
Page 22 - L&R Mono Assignment Switches; Assign the Left and Right signals to the Mono output.
GT X P AGE 20 C ENTURY S ERIES 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 feed signals betweenpre and post-fader. L/R/Mono PFL Switches Allow for Pre-Fader Listening of the Left, Right ...
Page 23 - Indicate the post-fader output of Group buses.; Indicate the 8 Aux output levels.; SOLO L & SOLO R Meters; Indicate level of any signal selected for PFL.; GROUP Meters; SOLO L & SOLO R Meters; Indicate level of any signal selected for PFL.
GT X P AGE 21 C ENTURY S ERIES GTx Meter Bridge - 52 & 64 Frame Models +3 +2 +1 -20 -10 -7 -5 -3 0 -1 Level +3 +2 +1 -20 -10 -7 -5 -3 0 -1 Level +3 +2 +1 -20 -10 -7 -5 -3 0 -1 Level +3 +2 +1 -20 -10 -7 -5 -3 0 -1 Level +3 +2 +1 -20 -10 -7 -5 -3 0 -1 Level +3 +2 +1 -20 -10 -7 -5 -3 0 -1 Level 1 +...
Page 25 - GTx
Page 26 - Frequency Response; Configurations
GT X A PPENDIX A C ENTURY S ERIES General Specifications - GTx Console The following are the technical specifications for the CenturyGTx console. Frequency Response +0.0, -0.5dB, 20Hz to 20 kHz (referenced to 1kHz) Total Harmonic DistortionMic input to Group output 20Hz to 20 kHz at +15dBu <0.01%...
Page 28 - Side Dimensions; The following diagram illustrates the depth and height dimen-
GT X A PPENDIX A C ENTURY S ERIES Side Dimensions The following diagram illustrates the depth and height dimen- sions (from the side) for all Century GTx consoles. 2.25"/57mm 24.75" / 629mm 28.0" / 71 1mm 30.21"/767mm 35 ° 12.6875" 322mm 12.5625" 319mm .65"/17mm 31.14"...
Page 29 - RearViews & Dimensions
GT X A PPENDIX A C ENTURY S ERIES A B C 1.5in./38mm .75in.19mm Size A B C 44 57.55" 55.80" 54.25" 52 67.15" 65.40" 63.85" 64 81.55" 79.80" 78.25" Size A B C 44 1462mm 1417mm 1378mm52 1706mm 1661mm 1622mm64 2071mm 2027mm 1988mm Crest Consoles Engineering,May 5, 199...
Page 30 - Optional modules
GT X A PPENDIX A C ENTURY S ERIES GTx USER-OPTIONS GTx consoles are shipped having standard configuration unless specified at time of order. These are ways that the console config-uration may be varied after manufacture. The items listed are internal options selected by gold jumper links. Default is...
Page 31 - Console Disassembly; Thumbscrews; Upper Screw; IMPORTANT; Group, Left, and Right modules are pre-assigned at the Crest factory
GT X P AGE 29 C ENTURY S ERIES Console Disassembly Though you shouldn’t have to disassemble the console, it is necessary to remove modules to change the jumper and switch set-tings associated with the internally selectable options. The following steps detail the tasks involved when taking the consol...
Page 34 - Glossary; See
GT X C ENTURY S ERIES A PPENDIX B Glossary 100mm Fader See Fader 48 Volt Phantom Power This switch turns on the +48V DC used to power some micro-phones. Always operate the 48V Phantom Power switch withthe input channel muted. See XLR Microphone Input for moreinformation. 5-Segment LED Array (Input M...
Page 36 - This control (marked PHONES and located in the upper right
A PPENDIX B GT X C ENTURY S ERIES Fader Reverse Switch This switch swaps roles between the Effect Return Level potand the Group Fader. When pressed, this switch causes theEffect Return Level to be controlled by the group fader, andthe group level to be controlled by the Effect Return Level pot.If yo...
Page 37 - See SOLO
A PPENDIX B GT X C ENTURY S ERIES below the dialed-in frequency. A peak setting would be used toboost or cut the specific dialed-in frequency. Line Input Jack This is a balanced, high impedance input which is designed toaccept both balanced and unbalanced line level inputs. Toselect this input sourc...
Page 39 - This knob controls the final level of the talkback signal.
A PPENDIX C GT X C ENTURY S ERIES Stereo Program In The Stereo Program In section (on the GTx Master section)controls the way in which the Stereo Program In signal is rout-ed through the console. Controls for gain, HF/LF EQ, busassignment (Mono, L/R, Aux 1/2, Aux 3/4, and Matrix A/Bbuses), balance, ...
Page 41 - SCHEMATIC NAME
Appendix C Schematics SCHEMATIC NAME # NOTES MODULES STANDARD INPUT CONNECTOR PCB 1 GTx INPUT CONNECTOR PCB STANDARD INPUT MAIN PCB 2 GTx INPUT MAIN PCB LCR SUB PCB 3 LCRSUB01 GTx LCR SUB PCB STEREO INPUT CONNECTOR PCB 4 GTx STEREO INPUT CONNECTOR PCB STEREO INPUT MAIN PCB 5 GTx STEREO INPUT MAIN PC...
Page 42 - Copyright © 1997 Crest Audio Inc.
GTx Owner's Manual Copyright © 1997 Crest Audio Inc. v 2.3 11/3/97 D7000003 Crest Audio Inc. 100 Eisenhower Dr., Paramus NJ 07652 USA TEL : 201.909.8700 FAX : 201.909.8744 http://www.crestaudio.com Printed in USA *D7000003*
