Peavey GTX User Manual

CENTURY SERIES

GTx

OWNER’S MANUAL

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.

This manual explains the functions of your new console, how they operate and how they relate to each other. If properly cared for, your new console will provide you with trouble-free, sonically accurate mixing clear into the next Century and beyond.

Please keep the following contact information on hand:

Crest Audio Customer Service Dept.

100 Eisenhower Drive

Paramus NJ 07652 USA

TEL 201.909.8700 FAX 201.909.8744

http://www.crestaudio.com

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

TABLE OF CONTENTS

Feature Overview 2

GTx

A brief description of the Vx design, features and functions.

Wiring Conventions 3

GTx

Contains diagrams indicating how connectors for Crest consoles are wired.

Rear Panel Connections 4

GTx

Details the rear panel input and output connections to be made to the GTx console.

Power Supply 6

GTx

A brief description of the rack-mountable Century Series consoles power supply.

Power Connections 7

GTx

A brief description of Crest console power connections.

Console Cooling 7

GTx

A brief description of the dual-fan cooling setup.

System Connections 8

GTx

Contains diagrams illustrating conventional system connections.

Input Module 10

GTx

Profiles the GTx input module. The module is illustrated and described.

Stereo Input Module 12

GTx

Profiles the GTx stereo input module. The module is illustrated and described.

Group Modules 15

GTx

Profiles the GTx group module. The module is illustrated and described.

Matrix Module 17

GTx

Profiles the GTx matrix module. The module is illustrated and described.

Master Section 19

GTx

Profiles the GTx master section. Modules are illustrated and described.

Meter Bridge 21

GTx

This section profiles the GTx meter bridge.

Technical Information Appendix A

GTx

Includes dimensions, specifications, console access details, user options, console block diagram, and rear panel layout.

Glossary Appendix B

GTx

The specific details of console operation are described here.

Schematics Appendix C

GTx

Lists available schematics for all GTx Console Modules & Power Supply

PAGE 1

GTX

Feature Overview

CENTURY SERIES

• Extensive Meter bridge provides signal level metering of LEFT, RIGHT, CENTER/MONO, SOLO LEFT, SOLO RIGHT, and 8 SUBGROUPS. The LEFT, RIGHT, CENTER/MONO and SOLO meters are of a larger size and are centered on the meter bridge. For 64 and 52 positions frames sizes only, metering is also provided for the 8 AUX SENDS. All level meters are of the mechanical moving coil type, are referenced to +4 dBu, and are illuminated by long-life LED’s.

• Variable Hi-Pass filter on input channels allows for precise control over a signal’s unwanted low frequency content.

• Channel inserts are implemented using separate 1/4" TRS jacks for send and return. An insert switch with indicator LED allows A/B comparisons and signal processor bypass.

• Switchable Q on Hi Mid and Lo Mid EQ bands adds more flexibility to an EQ circuit that already offers four sweepable bands and selectable peak/shelving on the Hi and Lo bands.

• Dual concentric send controls for auxes 1&2, and 3&4, in addition to sends 5-8 allow each input to send onto any or all of the 8 aux buses, while occupying a minimal amount of module space.

• AUX pre/post switches. The first four aux sends can be selected to be pre or post by the Aux 1-4 pre/post switch. In addition, Aux pairs 5&6 and 7&8 each have designated pre/post switches. The Pre source is internally selectable to Pre-EQ or Pre-Fader.

• Discreet bus assignments and L-C-R (Left-Center-Right) panning. Input channels and Effects Returns incorporate an uncompromised bus assignment section. Features include true L-C-R panning, standard panning, clean mono bus, discrete bus assigns, and panable stereo bus assigns.

• Each input channel features a five-segment LED array, including a signal present LED, three signal level LEDs and a peak indicator.

• SSM/PMI high-quality preamplifiers on balanced microphone/line inputs for uncompromised audio quality and reliability. All IC’s within the audio path are socket mounted for easy upgrade or service.

• 48 Volt switchable phantom power on all microphone inputs.

• Optional transformers available on all microphone inputs and on Group, Left/Right, Mono, Aux, and Matrix outputs.

• Mono/Stereo PFL (Pre-Fader-Listen) and AFL (After-FaderListen) system. When a stereo module is used, the signal is monitored in stereo while mono modules are monitored in mono. Selected outputs may be monitored in mono or as stereo pairs.

• Standard frame sizes include 44, 52, and 64 positions. The Master section occupies four positions and Groups occupy eight positions.

• Any frame size may be ordered short loaded for later expansion.

• Direct access to Group Mix buses allows expander mixers to be easily patched into the console.

• Full facility effects return section includes Gain Control to handle a wide range of input levels, High and Low frequency EQ, Aux Sends, expanded bus assignment section, and level, pan, PFL and Mute controls.

• Mute system on input channels is designed to mute both preand post-fader signals including those Aux sends used as monitors. When muted, PFL circuitry, Peak, Level, and Dynamic Signal Present LED indicators remain fully operational.

• Twin power supply capability with automatic changeover backup for uncompromised reliability. Second power supply optional.

• Optional Matrix modules available, useful for the creation of independent mixes using the main outputs and External Input as signal sources.

• Optional Stereo Input modules available, useful for remote feeds, effects inputs, and other mic or line level signals requiring stereo handling.

• Comprehensive Talkback section allows access to all primary console outputs. Additional access provided to an external location such as an on-stage monitor mixer system. External signals can also be assigned into the talkback system including Oscillator and Pink Noise source inputs.

• Left/Right summing switches to Aux 1-2 and Aux 3-4 allow for simple setups of mixes by allowing Left/Right signals to be blended with auxiliary mixes when used in recording applications. In contracting applications, this feature allows these Aux outputs to act as additional distribution amplifiers for the Left/Right signals.

PAGE 2

CENTURY SERIES

Crest consoles are wired with connectors that are used throughout the professional audio industry. Wiring is as follows:

GTX

Wiring Conventions

INPUT XLR

1

3

2

TIP - POSITIVE RING - NEGATIVE

PIN 1 PIN 3

PIN 2

PIN 1 = GROUND PIN 2 = POSITIVE PIN 3 = NEGATIVE

OUTPUT XLR

PIN 2 PIN 3

PIN 1

TIP - SEND RING - RETURN

INPUT

SLEEVE - GROUND

Standard TRS

(Tip - Ring - Sleeve)

1/4" Plug

Input / Output Insert

INSERT

SLEEVE - GROUND

Standard TRS

(Tip - Ring - Sleeve)

TIP - LEFT RING - RIGHT SLEEVE - COMMON

1/4" Plug

ST. INPUT

Standard TRS

(Tip - Ring - Sleeve)

1/4" Plug

Stereo Program In

PAGE 3

GTX

REAR PANEL CONNECTIONS

CENTURY SERIES

Input Module Connections Direct Out

This 1/4-inch balanced TRS jack delivers the direct output signal (post fader & post mute) from the associated input channel.

DIR OUT

INSERT SEND

Insert Send

This 1/4-inch jack is used for sending a post-input preamp, post Hi Pass Filter, pre-EQ signal to an outboard processor. The signal at this jack is unbalanced and always active regardless of the Insert Switch setting.

Bal Insert Return

This 1/4-inch balanced TRS jack receives it's signal from an outboard processor. It can also be used to bring a signal into the channel, bypassing the input preamp and gain circuit. The return input is balanced and must be enabled by depressing the channel Insert switch.

Bal Line In

This 1/4-inch balanced TRS jack accepts an balanced or unbalanced line level input, and delivers it into the associated input channel.

BAL INSERT RETURN

BAL LINE IN

BAL MIC IN

1

3

2

GTx

Input

Module

Mic In

This XLR connector accepts balanced microphone inputs for the associated input channel.

Group Module Connections Group Out

This XLR connector carries the post-fader output signal from the associated group module.

GROUP OUT

GRP INS SEND

Group Ins Send

This 1/4-inch TRS jack allows for the group signal to be sent to an effect or signal processor.

Bal Ins Return

This 1/4-inch balanced TRS jack allows for the return of the effected and/or processed group signal back into the associated group.

EFX Return

These two connectors allow for effect signals to be brought back into the board. The 1/4-inch balanced TRS jack accepts a balanced or unbalanced signal at -10 dB level and delivers the signal to the EFX return section. The female XLR connector accepts a balanced signal at +4dB level and delivers the signal to the EFX return section of the group. Signals from both jacks are mixed together.

BAL INSERT RTN

EFX RETURN

-10 +4

1

3

2

BUS IN

1

3

2

GTx

Group

Module

Bus In

This XLR connector accepts a balanced signal at +4dB level, and then sums it with all the other signals assigned to the associated groups.

Stereo Input Module Connections

Insert L / Insert R

These ‘combined send & return’ TRS jacks are used to insert effects or signal processing into the Left and Right channels of the Stereo Input module.It can also be used to bring a signal into the channel, bypassing the input preamp and gain circuit. The return input is enabled by depressing the channel Insert switch.

Bal Line In L / Bal Line In R

These 1/4-inch balanced TRS jacks accept balanced or unbalanced line level inputs, and delivers them into the associated (Left or Right) input channels of the Stereo Input.

Bal Mic In L / Bal Mic in R

These XLR connectors accept balanced microphone inputs, and delivers them into the associated (Left or Right) input channels of the Stereo Input.

PAGE 4

INSERT L

INSERT R

BAL LINE IN L

BAL LINE IN R

BAL MIC IN L

1

3

2

BAL MIC IN R

1

3

2

GTx

Stereo

Input

Module

MATRIX A OUT

INSERT A

MATRIX B OUT

INSERT B

EXT TB OUT

EXT TB IN

1

3

2

MONO OUT

MONO INSERT

MONITOR L OUT

MONITOR R OUT

STR PGM IN

OSC/PINK IN

Master

Modules

GTx

RIGHT OUT

RIGHT INSERT

AUX 3 OUT

AUX 4 OUT

AUX 7 OUT

AUX 8 OUT

LEFT OUT

LEFT INSERT

AUX 1 OUT

AUX 2 OUT

AUX 5 OUT

AUX 6 OUT

CENTURY SERIES

GTX

Master Module Connections Matrix Out (A&B)

These two XLR connectors deliver a balanced signal from the associated matrix sends.

Mono Out

This XLR connector delivers a balanced post-fader signal containing all signals assigned to the Mono clean bus.

Right Out

This XLR connector delivers a balanced post-fader signal containing all signals assigned to the right output.

Left Out

This XLR connector delivers a balanced post-fader signal containing all signals assigned to the left output.

Matrix Insert (A&B)

This ‘combined send & return’ TRS jack allows for the insertion of an effect or signal processor into the audio path of the associated matrix.

Stereo Program In

This 1/4-inch jack accepts an unbalanced stereo line level signal. Polarity is as follows: Tip=Left, Ring=R, Sleeve=Common.

Oscillator / Pink Noise In

This 1/4-inch TRS connector accepts a balanced or unbalanced signal from an oscillator or pink noise generator. This signal is assignable via the talkback assignment switches. Plugging into this jack disables the internal 1kHz oscillator.

Matrix Module Connections Matrix Out

MATRIX OUT

This XLR connector delivers a balanced signal from the matrix module.

MTX INSERT

Matrix Insert

This ‘combined send & return’ TRS jack allows for the insertion of an effect or signal processor into the audio path of the matrix output.

Mono Insert

This ‘combined send & return’ TRS jack allows for the insertion of a signal processor into the path of the mono sub-mix.

Right Insert

This ‘combined send & return’ TRS jack allows for the insertion of an effect or signal processor into the audio path of the right sub-mix.

Left Insert

This ‘combined send & return’ TRS jack allows for the insertion of an effect or signal processor into the audio path of the left sub-mix.

Monitor Out (R&L)

These two XLR connectors provide a balanced signal for the left and right local monitor.

Aux 1-8 Out

These eight XLR connections provide the balanced output signals from their respective auxiliary buses.

Ext. Talkback Out

This XLR connector provides an external balanced signal from the selected talkback source.

Aux In 1

This XLR connector accepts a balanced signal at +4dB level, which can be summed with all the other signals in the matrix output.

Aux In 2

This XLR connector accepts a balanced signal at +4dB level, which can be summed with all the other signals in the matrix output.

AUX IN 1

1

3

2

AUX IN 2

1

3

2

Matrix

Module

Ext. Talkback In

This XLR connector accepts a balanced signal which is assignable to any of the locations in the talkback system.

PAGE 5

GTX

CENTURY SERIES

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 GTx console use the Model XCVA06 Power Supply.

Press to Reset

ON

C O N S O L E S

Power Supply

CAUTION

RISK OF ELECTRIC SHOCK

AVIS : RISQUE DE CHOC ÉLECTRIQUE—NE PAS OUVRIR

WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT

ÉLECTRIQUE, NE PLACEZ PAS CET APPAREIL SOUS LA PLUIE OU Á

DO NOT OPEN

EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE.

ATTENTION! POUR ÉVITER LE RISQUE D'INCENDIE OU DE CHOC

L'HUMIDITÉ

Designed & manufactured in the USA by:

A division of Crest Audio Inc.

100 Eisenhower Dr.

Paramus, New Jersey 07652 USA

1

2

3

4

5

7

6

Pin 1 +24V Pin 2 +20V Pin 3 Analog Pin 4 Analog Pin 5 Digital Pin 6 +48V Pin 7 -20V

POWER OUT

Supply Identification

The type of power supply can be identified by the model number shown on the back of the chassis and panel label..

Power Requirements

The Century Series power supplies have certain electrical requirements to operate properly. If possible the power supply should be connected to a dedicated circuit. Should any other appliance on the same circuit draw enough current to overload the circuit, the breaker or fuse will trip causing loss of power to the console. Note the maximum current draw specifications at right. Be sure that the circuit to which you connect the supply can handle the draw. The power switch on the supply front panel is also a circuit breaker, there is no power fuse. Should the supply ever shut down, or trip at start up, simply push the switch to the off position and then on again.

Ground Linking

Safety Considerations -

Each new power supply is shipped with the AC third wire ground connected to the console chassis ground. The connection is made at the rear of the power supply unit. This is necessary for safety reasons so that exposed metal parts are grounded. In the event of a live conductor making contact with the console chassis or the power supply chassis then the current will flow to ground without a safety hazard arising. Note that when the console is disconnected from the power supply the chassis ground connection to AC third wire ground is broken and safety protection is lost. For uninterruptible grounding, in a fixed installation for example, make a connection directly to the console chassis from the safety ground. Disconnect the ground link on the rear of the power supply. This disconnects console ground from power supply AC third wire ground which would otherwise create a hum-loop.

+20V

+48V

Model XCVA04

S/N

± 20V @ 4 + 24V @ 4 + 48V @ 1 + 24V @ 6 ± 20V @ 6

Model XCVA06

CONSOLE GROUND

-20V

CHASSIS GROUND

+24V

MAXIMUM AC IN: XCVA04: 415 WATTS XCVA06: 825 WATTS

6A

Twin Supply Operation

When twin supplies are in use for automatic back-up, then the ground links on both supplies should be fitted. In a situation where the safety ground to the console chassis has been connected and the ground path via the power supply is causing a hum-loop, then disconnect the ground links on BOTH power supplies.

Console and Power Supply Grounding

Console chassis ground is electrically connected to audio ground, pin 1 of XLR connectors and 1/4" sockets and to the terminal 'CONSOLE GROUND' at the rear of the power supply. The AC third wire connection in the power supply cable connects the metal chassis of the power supply to safety ground. This connection should never be disturbed. Hazardous voltages exist inside the power supply which require the case to be grounded. When rack-mounted, the power supply ground may transfer to the rack case thru the front fixing screws, though this connection is not reliable. When a console is configured within a complete sound system the grounding requirements may call for the ground link to be disconnected. This is permissible only when an alternative ground path has been provided. If in doubt seek the advice of an experienced electrical engineer.

Power Supply

Model

XCVA06

Serial Number Tag

Model Number

Max Current

Draw @ 120V

9 Amps

S/N

Max Current

Draw @ 240V

5 Amps

Model XCPS-40

±20V @ 4 +24V @ 4

+48V @ 1A +24V @ 6A ±20V @ 6A

XCVA06

Model

PAGE 6

CENTURY SERIES

Power Connections

The connections to and from the power supply vary depending on your specific configuration. Before setting up the console, always check to make sure the AC voltage marked on the power supply agrees with the local supply. 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 failsafe protection in the event of a supply failure. When two or more supplies are used, both power supplies run all the time. In the event of supply failure, the remaining power supply(s) will take over the entire load.

GTX

NOTE: Although both of the multi-pin connectors on the back of the power supply are labeled “POWER OUT”, it is necessary (and acceptable) to link two power supplies together as shown in the diagram below.

ADDITIONAL NOTE: The multi-conductor cable used for power supply-to-power supply connection is different than that used for a conventional power supply-to-console connection, and must be specified when the second power supply is ordered.

Ground Link

To Console

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

AVIS : RISQUE DE CHOC ÉLECTRIQUE—NE PAS OUVRIR

WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT

EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE.

ATTENTION! POUR ÉVITER LE RISQUE D'INCENDIE OU DE CHOC

ÉLECTRIQUE, NE PLACEZ PAS CET APPAREIL SOUS LA PLUIE OU Á

L'HUMIDITÉ

Designed & manufactured in the USA by:

A division of Crest Audio Inc.

100 Eisenhower Dr.

Paramus, New Jersey 07652 USA

Model XCVA04

S/N

± 20V @ 4 + 24V @ 4 + 48V @ 1 + 24V @ 6 ± 20V @ 6

Model XCVA06

CONSOLE GROUND

CHASSIS GROUND

MAXIMUM AC IN: XCVA04: 415 WATTS XCVA06: 825 WATTS

To AC Mains

1

2

4

5

6

7

Pin 1 +24V Pin 2 +20V Pin 3 Analog Pin 4 Analog Pin 5 Digital Pin 6 +48V Pin 7 -20V

POWER OUT

3

POWER OUT

Interface Cable

POWER OUT

1

2

3

4

5

6

7

Pin 1 +24V Pin 2 +20V Pin 3 Analog Pin 4 Analog Pin 5 Digital Pin 6 +48V Pin 7 -20V

POWER OUT

Console Cooling

A cooling fan configuration is included in all GTx consoles. Two fans (one at each end of the console) draw air in through the sides of the chassis (under the sidebars). Air is distributed through the chassis via a “vortex pan”, then proceeds up through the console modules, where the heated air exits the console chassis.

Once the console is powered up, cooling fans remain on. A rear panel switch permits the fans to be set at low, medium or high speeds.

There are no filters to change or clean. As with any console, use in dusty/unclean environments should be avoided.

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

AVIS : RISQUE DE CHOC ÉLECTRIQUE—NE PAS OUVRIR

WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT

EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE.

ATTENTION! POUR ÉVITER LE RISQUE D'INCENDIE OU DE CHOC

ÉLECTRIQUE, NE PLACEZ PAS CET APPAREIL SOUS LA PLUIE OU Á

L'HUMIDITÉ

Designed & manufactured in the USA by:

A division of Crest Audio Inc.

100 Eisenhower Dr.

Paramus, New Jersey 07652 USA

Model XCVA04

S/N

± 20V @ 4 + 24V @ 4 + 48V @ 1 + 24V @ 6 ± 20V @ 6

Model XCVA06

CONSOLE GROUND

CHASSIS GROUND

MAXIMUM AC IN: XCVA04: 415 WATTS XCVA06: 825 WATTS

To AC Mains

PAGE 7

GTX

CENTURY SERIES

System Connections

The console is the hub of a sound system. 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.

Balanced Mic Inputs

Input Processing,

via Input Module

Insert Send and Return

Connections

CENTURY

10

0

5

10

15 20

30 40 60

0

5

10

15

20

30

40

60

10

0

5

10

15

20

30

40

60

Balanced Line Inputs

10

0

5

10

15

20

30

40

60

10

0

5

10

15

20

30

40

60

Drum Machines

External Mixer

Input via Group Bus In

10

0

5

10

15 20

30 40 60

Keyboards,

Samplers,

10

0

5

10

15

20

30

40

60

CENTURY

10

0

5

10

15

20

30

40

60

10

0

5

10

15

20

30

40

60

10

0

5

10

15

20

30

30 40

40

60

Input Connections

Signal Processors

Aux Connections

In

Out

From Aux 5-8 out

To effects returns

MONO OUT

MATRIX A OUT

MONO INSERT

INSERT A

MONITOR L OUTMATRIX B OUT AUX 3 OUT AUX 1 OUT

INSERT B

MONITOR R OUT AUX 4 OUT AUX 2 OUT

EXT TB OUT

STR PGM IN

OSC/PINK IN

EXT TB IN

Aux 1-4 out to monitor amplifiers

GROUP OUT

RIGHT OUT LEFT OUT

LEFT INSERTRIGHT INSERT

GROUP INSERT

EFX RETURN

-10

AUX 7 OUT AUX 5 OUT

+4

AUX 8 OUT AUX 6 OUT

BUS IN

Master

GROUP OUT

GROUP INSERT

EFX RETURN

-10 +4

BUS IN

GROUP OUT

GROUP INSERT

EFX RETURN

-10 +4

BUS IN

GROUP OUT

GROUP INSERT

EFX RETURN

-10 +4

BUS IN

Groups

GROUP OUT

GROUP INSERT

EFX RETURN

-10 +4

BUS IN

PAGE 8

CENTURY SERIES

GTX

Clip/Limit

Signal

Temp/DC

Active

-6

-10

-3

-15

-1

-30

-80

0dB

Ch B

Ch A

Input Channel

Direct Outs feed to remote mixer/recorder

8001 Professional Power Amplifier

Left Out

Local Monitor L

Clip/Limit

Signal

Temp/DC

Active

-6

-10

-3

-10

-3

-15

-1

-30

-80

0dB

-80

0dB

Ch A

Ch B

Monitor Out

10

0

5

10

15

20

30

40

60

Clip/Limit

Signal

Temp/DC

Active

-6

-10

-3

-15

-1

-30

-80

0dB

Ch B

Ch A

7001 Professional Power Amplifier

From Local

10

0

5

10

15 20

30 40 60

10

0

5

10

15

20

30

40

60

-3

-1

0dB

CENTURY

10

0

5

10

15

20

30

40

60

8001 Professional Power Amplifier

Local Monitor R

Center

Out

Right Out

Clip/Limit

Signal

Temp/DC

Active

-6

-10

-3

-15

-1

-30

-80

0dB

Ch B

Ch A

8001 Professional Power Amplifier

Matrix Outputs

to remote

location, mixer,

or recorder

10

0

5

10

15

20

30

40

60

0

5

10

15

20

30

40

60

10

0

5

10

15

20

30

40

60

Output Connections

Headphone Outputs:

1 under armrest,

1 in Master Module

PAGE 9

GTX

40

30

205070

80

40

20

8

3

1.5K

2

1K

6

400

6

4

2

100

200

100

40

5

46

3

2

1

0

5

46

3

2

1

0

5

46

3

2

1

0

5

46

3

2

1

0

5

46

3

2

1

0

5

46

3

2

1

0

AUX SENDS

+48V

LINE

PAD

150

400

INSERT

20K

PEAK

4

Q

4

800

PEAK

EQ IN

10

PRE PRE

10

AUX 8

DIRECT

PRE

GAIN

300

HPF

Ø

15

HM

8K

LM

1K

2K

6

7

9

7

9

7

8

9

7

8

9

7

8

9

7

8

9

CENTURY SERIES

7

3

1

0

10

5

46

3

1

0

10

PRE

5

46

3

2

1

10

0

5

46

3

2

1

10

0

5

46

3

2

1

10

0

5

46

3

2

1

10

0

AUX 8

DIRECT

PRE

8

9

3 4

7

8

9

5

7

8

9

6

7

8

9

7

8

9

8

7

8

9

2

HF

6

AUX SENDS

PAN

GTx Input Module

The input module is the main method by which input signals are brought into the console. The GTx input module brings several new features to the Century Series, including a 5-segment LED signal meter array, Adjustable Hi Pass filter, Insert switch, four-band sweep EQ (with selectable peak/shelving on HF & LF EQ bands and selectable Q on HM & LM EQ bands), 8 discrete AUX sends, and L-C-R (Left-CenterRight) bus assignment section.

48V Phantom Power Switch

Applies 48 Volts DC to pins 2 & 3 of the microphone input XLR jack for microphones requiring phantom power.

LINE Switch

Switches between the balanced female XLR microphone Input connector and the balanced Line Input 1/4" TRS connector.

PAD Switch

Introduces a -15 dB attenuation to the mic input signal, useful when handling high-gain signals.

GAIN Control

Adjusts input gain for proper signal level. Maximum gain is 70 dB.

Adjustable High Pass Filter

MUTE

PFL

L C R

P A N

2

4

6

8

10

5

0

5

10

15

20

30

LF

1 2

8

3 4

8

5

6

7

8

M

LR

1

3

5

7

PK +8

0

-6

SIG

SCENE MUTE

SELECT

SAFE

A - D

Reduces all low frequency content at a -12db per octave rate adjustable from 20 to 400 Hz (-3db point). Yellow LED illuminates when switch is down.

Polarity Reverse Switch

Inverts the polarity of both the microphone and line inputs. The red LED illuminates when switch is down.

INSERT Switch

Switches any signal processing patched into the Input module (via the rear panel Send/Return jacks) in and out of the signal path. Associated green LED is illuminated when switch is down.

Four-Band Sweep Equalizer Controls

There are two knobs for each of the four bands. The inner knob controls the boost or cut (15 dB); the outer knob controls the center frequency. Center frequencies are indicated around the outer knob.

PEAK/SHELVE HF Switch

Used for switching the high frequency EQ between the normal shelving setting to a peak setting.

SWITCHABLE Q on HI MID and LO MID EQ

Q is switchable between .8 (switch up) and 1.8 (switch down).

PEAK/SHELVE LF Switch

Used for switching the low frequency EQ between the normal shelving setting to a peak setting.

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CENTURY SERIES

GTX

EQ IN Switch

Inserts the EQ section into the input channel (post insert, pre fader). An associated green LED illuminates when the switch is down.

AUX SENDS 1&2 and 3&4 Individual Level Controls

Adjusts signal level sent to respective Aux buses. The signal source for these mixes may be selected pre or post fader by an associated switch. AUX pairs 1&2 and 3&4 are configured as dual concentric pots with the inner knobs controlling the odd sends (1&3), and the outer knobs controlling the even sends (2&4).

PRE/POST Switch

Switches the Aux 1&2 and Aux 3&4 signal sources between pre and post fader positions.

AUX SENDS 5-8

Individual Level Controls

Adjusts signal level sent to respective Aux buses. The signal source for these mixes may be selected pre or post fader by the associated AUX 5&6 PRE/POST or AUX 7&8 PRE/POST switches.

Aux 8 Direct Switch

Removes the Aux 8 signal from the Aux 8 bus, and assigns the signal to the direct out 1/4" connector on the rear panel, instead of the normal post fader Dir Out signal.

AUX 5&6 PRE/POST Switch

Switches the Aux 5 & 6 signal sources between pre and postfader.

AUX 7&8 PRE/POST Switch

Switches the Aux 7 & 8 signal sources between pre and postfader

PAN CONTROL

Positions the channel image between left and right or between left-center-right. (See L-C-R Switch)

MUTE Switch with LED

Mutes the channel and all send functions. Mute does not affect the PFL switch or the Peak and Signal Present LED indicators. Red LED illuminates when the channel is muted.

PAN Switch / Group Assign Switches (1-8)

With PAN switch down, the PAN control varies the level of the group assignments with odd numbered groups on the left and even numbered groups on the right. With PAN switch up, groups can be individually selected and are unaffected by the PAN control. Group assign switches route signals to the Group buses.

PFL Switch

Samples the channel’s signal (pre-fader) and allows for monitoring within the master section of the console. This signal is not affected by the Mute switch. When depressed, the signal level can be seen on the Solo meters (which brighten in intensity), and can be heard via the mixer’s headphone or local monitor output. When this PFL switch is depressed, the associated yellow LED illuminates.

5-Segment LED Array

The signal is monitored pre-fader. Signal Present LED (green) responds to levels as low as -30 dB and comes to full brightness at -8dB, varying in intensity according to level. -6dB LED (green), 0dB LED (green), and +8 dB (yellow) illuminate accordingly. The Peak (red) LED responds to overloads at three points in the module; pre-EQ, post-EQ, and post-fader.

100mm Fader

Used for control of all outputs of the channel except those Aux output sections selected by the PRE/POST switch to a prefader position. (The Insert output level is not affected by the fader position.)

Scene Mute Assignment Buttons

Assigns input channels to any of the four Scene Mute groups. Scene Mute combines with the module’s local Mute button, and actuates the local Mute LED.

Scene Mute Safe Switch

Disables any selected Scene Mute assignments. An associated green LED indicates the channel is in a Safe state.

MONO Bus Assign Switch

Assigns the input signal directly to the Center / Mono bus.

L-C-R Switch

Configures Left/Right and Center/Mono assignments for L-CR panning. To enable L-C-R panning, L-R and Mono assign switches must be down.

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Peavey GTX User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual