QSC CXD4-5, CXD4-2 Quick Start Manual

CXD Amplifier

Quick Start Guide

EXPLANATION OF TERMS AND SYMBOLS

The term “WARNING!” indicates instructions regarding personal safety. If the instructions are not followed the result may be bodily injury or death.

The term “CAUTION!” indicates instructions regarding possible damage to physical equipment. If these instructions are not followed, it may result in
damage to the equipment that may not be covered under the warranty.

The term “IMPORTANT!” indicates instructions or information that are vital to the successful completion of the procedure.

The term "NOTE" is used to indicate additional useful information.

The intent of the lightning fl ash with arrowhead symbol in a triangle is to alert the user to the presence of un-insulated "dangerous"
voltage within the product's enclosure that may be of suffi cient magnitude to constitute a risk of electric shock to humans.

The intent of the exclamation point within an equilateral triangle is to alert the user to the presence of important safety, and operating
and maintenance instructions in this manual.

NOTE:

four separate outputs. For detailed instructions for custom confi gurations refer to the CXD User Guide (TD-000367).

This Quick Start Guide is based on the basic confi guration as the amplifi er comes from the factory. Four separate inputs, and

Rack-Mount the Amplifi er

1. Secure the amplifi er in the rack with eight screws (not supplied), four in front, four
in back.

— Figure 1 —

TD-000350-00-B

*TD-000350-00*

1

Connections

Inputs

1. Wire the audio line-level source to up to four Euro-style connectors
(supplied). You may use either balanced inputs (Figure 2) or unbalanced
inputs (Figure 3).

2. Plug the connectors into the appropriate receptacles (Routable Inputs 1, 2,
3, 4) Figure 4.

3. Connect the IEC power cord to the AC receptacle on the rear of the
amplifi er. (Figure 5)

GPIO

ROUTABLE INPUTS

2143

HEARTBEAT
GPIO

Balanced

+

— Figure 2 —

Unbalanced

—

—

+

— Figure 3 —

GPIO

— Figure 5 —

— Figure 4 —

WARNING!:

Do not turn the amplifi er on at this time.

Outputs

When the output confi guration of the amplifi er changes, the Outputs to the loudspeakers change accordingly. Use the diagrams shown in Figure 6
thru Figure 8 as a reference for wiring the loudspeakers. After connecting the outputs to the loudspeakers, you may turn the amplifi er on.

Separate Channels (A B C D)

For Four Separate Loudspeakers

Use four 2-wire cables, connect to:

• T1+/T2- (Loudspeaker 1)

• T3+/T4- (Loudspeaker 2)

• T5+/T6- (Loudspeaker 3)

• T7+/T8- (Loudspeaker 4)

A

8.0

625

625

B

8.0

625

625

C

8.0

625

625

D

8.0

625

625

OUTPUTS TO SPEAKERS

+

CH A

­+

CH B

­+

CH C

­+

CH D

-

T1

T2

T3

T4

T5

T6

T7

T8

SETTINGS CAN BE
CONFIGURED FOR

70V, 100V AND

200V DIRECT

BRIDGED

T1+ T3-

COMBINING APPLICATIONS

OUTPUT.

CH A+B

CH C+D

T5+ T7-

CH AB+CD

T1

+

T5-

T3+

T7-

PARALLEL CHANNEL

CH AB

T1+

T2-

T3+

T4-

CH CD

T5+

T6-

T7+

T8-

CH ABC

T2-

T1

+

T4-

T3+

T6-

T5+

CH ABCD

+

T2-

T1
T3+

T4-

T5+

T6-

T7+

T8-

— Figure 6 —

2

Bridged (A+B) and Separate (C D ) Channels

S

S

For A+B (Bridged) One Loudspeaker

Use one 2-wire cable connect to:

• T1+/T3-

For C & D (Separate) Two Loudspeakers

Use two 2-wire cables connect to:

• T5+/T6- for CH C

• T7+/T8- for CH D

A+B

1250

1250

8.0

8.0

625

625

C

D

8.0

625

625

Parallel Channels (ABCD)

For One Loudspeaker

Full power to one loudspeaker

Use one 2-wire cable, connect to:

• T1+/T2-

• Jumper T1, T3, T5, T7

• Jumper T2, T4, T6, T8

For Multiple Loudspeakers

Full power for multiple loudspeakers in parallel

Use up to four 2-wire cables, connect to:

• T1+/T2-

• T3+/T4-

• T5+/T6-

• T7+/T8-

A+B

8.0

1250

1250

C+D

8.0

1250

1250

A B C D

8.0

2500

2500

— Figure 7 —

OUTPUTS TO SPEAKERS

+

CH A

­+

CH B

­+

CH C

­+

CH D

-

OUTPUTS TO SPEAKERS

+

CH A

­+

CH B

­+

CH C

­+

CH D

-

T1+, T3+, T5+, and T7+ are elec trically the same point
T2-, T4-, T6-, and T8- are elec trically the same point

T1

T2

T3

T4

T5

T6

T7

T8

T1

T2

T3

T4

T5

T6

T7

T8

SETTINGS CAN BE
CONFIGURED FOR

70V, 100V AND

200V DIRECT

OUTPUT.

BRIDGED

CH A+B

T1+ T3-

CH C+D

T5+ T7-

CH AB+CD

T1

+

T5-

T3+

T7-

SETTINGS CAN BE
CONFIGURED FOR

70V, 100V AND

200V DIRECT

OUTPUT.

BRIDGED

CH A+B

T1+

T3-

CH C+D

T5+

T7-

CH AB+CD

T1

+

T5-

T3+

T7-

PARALLEL CHANNEL

COMBINING APPLICATION

CH AB

T1+

T2-

T3+

T4-

CH CD

T5+

T6-

T7+

T8-

CH ABC

T2-

T1

+

T4-

T3+

T6-

T5+

CH ABCD

+

T1

T2-

T3+

T4-

T5+

T6-

T7+

T8-

PARALLEL CHANNEL

COMBINING APPLICATION

CH AB

T1+

T2-

T3+

T4-

CH CD

T5+

T6-

T7+

T8-

CH ABC

T2-

T1

+

T4-

T3+

T6-

T5+

CH ABCD

+

T2-

T1
T3+

T4-

T5+

T6-

T7+

T8-

— Figure 8 —

Connect the Loudspeakers

1. Connect the loudspeaker wiring to the 8-pin Euro-style connector as needed for
your amplifi er's confi guration.

2. Install the female 8-pin Euro-style connector onto the male connector on the rear of
the amplifi er as shown in Figure 9.

3. Use a Phillips screwdriver to secure the connector.

— Figure 9 —

3

CXD Amplifi er Signal Flow

Input Settings

Sensitivity

Switch

Sensitivity

Switch

Sensitivity

Switch

Sensitivity

Switch

Meter

Meter

Meter

Meter

Gain

Gain

Gain

Gain

1

2

3

4

Mixer

Mixer

Mixer

Mixer

Button

Actuated

Mute

Mute

Mute

Mute

Highpass

Filter

Highpass

Filter

Highpass

Filter

Highpass

Filter

Amplifi er Control

Off Mode

• Rear power switch is off, the amplifi er is not operable. The power
switch is the AC Mains disconnect.

• The power button is not illuminated.

• Turn the power switch to on. The amplifi er enters the Run Mode.

• The power button is illuminated blue.

Output Processing

Gain /

Lowpass

Polarity

Lowpass

Gain /

Polarity

Gain /

Lowpass

Polarity

Lowpass

Gain /

Polarity

Crossover

— Figure 10 —

ENTER Button

• Navigates into the menu structure

• Enters the edit mode for adjusting parameters

• Confi rms the changes you make

EXIT Button

• Navigates out of the menu structure and parameter selection.

• In the edit mode, pressing EXIT reverts the value back to its prior

Filter

Filter

Filter

Filter

5-band

PEQ

5-band

PEQ

5-band

PEQ

5-band

PEQ

Delay

Delay

Delay

Delay

RMS / Peak

Limiter

RMS / Peak

Limiter

RMS / Peak

Limiter

RMS / Peak

Limiter

state, and exits the edit mode.

Meter

Meter

Meter

Meter

Amp Configuration

A

B

C

D

Set by Wizard

ENTER

EXIT

Run Mode

• From Standby or Mute All modes, press and release the power button
on the front panel.

• The power button is illuminated blue.

• The amplifi er is fully operable; audio can pass.

Standby Mode

• From Mute All or Run modes, press and hold the power button on
the front panel.

• The power button illuminates solid red.

• The amplifi er is not operable; audio will not pass.

Mute All Mode

• From the Run Mode, press and release the power button.

• The power button fl ashes red.

• The front panel and DSP functionality are fully operable. Any changes
you make are saved and take effect in the Run Mode.

Master Control Knob

• Scrolls up/down and right/left to select menu items and parameters

• Adjusts parameters

HOME Button

HOME

• If you are on the Home screen, pressing HOME displays the alternate
Home screen. Pressing HOME again returns you to the primary
Home screen.

• If you are on a navigation screen, pressing HOME takes you to the
home screen.

• If you are on an edit screen, pressing HOME will confi rm any value
being edited and take you to the Home screen.

GAIN Button

GAIN

• Pressing the GAIN button from any screen takes you to the output
gain screen for the most recently accessed output channel.

• Pressing GAIN again confi rms the gain change and returns to the
screen you were on when you pressed GAIN.

SEL Buttons

SEL

• Use these buttons to navigate between input channels or output
channels. For example, if you are adjusting output gain on channel A,
pressing the channel B SEL button takes you to the gain adjustment
for channel B.

• The SEL buttons are active only when the LCD screen is on an input
or output parameter adjustment screen.

4

Menu Tree

d

Presets

Preset Recall

Preset Save

Preset Wizard

*For QSC Line Arrays only

Screen Types

Informational

Informational screens, like the HOME screen, are
designed to provide you with a good amount of
useful information at a glance.

Inputs

Input Sensitivity

Input Gain

F1: Config - A B C D

Home (Press HOME for more information)

Full

A - FR

+1.5 dB

Full

B - FR

+3.5 dB

Outputs

Mixer w/Noise & Tone

Mode (Lo-Z, 70V, 100V)

Processing

Array Correction*

Crossover

EQ

Delay

Limiter

Load Speaker

Save Speaker

Full

C - FR

+1.5 dB

Full

D - FR

+1.5 dB

Utilities

Status

Amp ID

Display

Lockout

Passwor

GPIO

Preset # and Configuration
Location and breadcrumbs

Channel Configuration
and Gain

Navigational

Navigational screens provide the means to move
around and select menu items. Use the Master
Control knob, ENTER and EXIT buttons for navigation.
This is an example of one type of navigational screen,
there are others.

Parameter Editing

Parameter editing screens allow you to select, edit,
and confi rm changes for various system parameters.
Use the ENTER button to edit and confi rm changes
to parameters. Use the Master Control knob to select
parameter, and make adjustments. Use the EXIT
button to exit the edit mode without saving changes.

121 V 7.2 AAC Voltage: AC Current:

Amp Status:

OK

— Figure 11 —

F1: Config - A B C D

Menu

PRESETS

Preset Recall and Save

INPUTS

— Figure 12 —

F1: Config - A B C D

Gn/Pol

-7.0 dB

Gain

Polarity

POL+

Output

A

20 dB

-60 dB

AC Voltage and Current

Amplifier Status

Preset # and Configuration
Location and breadcrumbs

Empty area indicates no
selections above (CCW).

Current Menu Selection

Next Menu selection below
(CW)

Parameter being edited

Parameter not selected

Parameter selected

Gain

-7.0 dB

— Figure 13 —

5

Presets

The CXD amplifi ers are preset driven, so to get the most out of the amplifi ers an understanding of how presets work is essential. A Preset, in the
context of the CXD amplifi ers, is a combination of amplifi er confi guration and DSP processing; as a preset is recalled it can change the output routing
and wiring and/or any DSP processing.

Preset Creation

A preset can be created in two ways, the fi rst is to modify an existing preset, then save this as a new Preset; the second is to use the Preset Wizard to
create a Preset from scratch.

Preset Wizard

The Preset Wizard simplifi es the preset creation process, and allows the user to create a preset from the ground up. The Wizard provides a mechanism
for the user to select his desired power and load. Based on these selections, the best amplifi er confi guration is selected and the user is then allowed to
select and assign loudspeakers to each output.

To start the Wizard:

STEP 1 —

Adjust Impedance and Power

Output:

Imped:

Power:

Remaining Power Available: 1875 W

Enter Load Profile (Impedance and Power)

A

B

8.0

8.0

625

625

625

HOME > PRESETS > PRESET WIZARD > ENTER

OUTPUTS SPEAKERS SAVE

AB C D

8.0 - - - - - -

25 - - - - - -

Default = 8 Ω

Default = min. for amp

Adjust Impedance based on the total loudspeaker load connected to the channel.

Possible Output Mode Combinations using the Preset Wizard

A B + C D

8.0

2475

— Figure 14 —

8.0

C

D

8.0

625

A+B

8.0

1250

C

8.0

625

D

8.0

625

A+B

8.0

1250

C+D

8.0

1250

A B C D

8.0

2500

Adjust Impedance

Adjust Power

To confirm, press

Modes:
A B = Separate Channels
A+B = Bridge Mode
AB = Parallel Mode

ENTER

STEP 2 —

Select Output Channel for Speaker Assignment

OUTPUTS SPEAKERS SAVE

Output:

Imped:

Power:

Spkr:

ADCB

8.0 8.08.08.0

625 625625625

- - - - - - - -- - - -- - - -

Assign

Assign

Optional: Scroll to desired Output channel

To Assign a loudspeaker, press

AssignAssign

Loudspeaker assignment is optional.

ENTER

6

STEP 3 —

Select Speaker Type for Channel

OUTPUTS SPEAKERS SAVE

To edit Speaker, press

ENTER

A

Band and Filter
selections are based
on the Speaker.

To exit edit mode and confirm, press

Scroll to select Speaker type

ENTER

Scroll to edit Band then Filter

STEP 4 —

Output:

Speaker:

Band:

Filter:

Save Wizard Preset

WL2102 BiLFNS

2-Way LF

80 Hz

CONFIRM

OUTPUTS SPEAKERS SAVE

Scroll to the Save screen

User Preset Number:

New Preset Name

Con f i g - A

21

To edit User Preset number, press

ENTER

To name and save the preset,

SAVE

Edit preset number or press EXIT

Complete steps 1 thru 3 under
“To Save a New User Preset”

Saving Presets

Presets can be modifi ed and saved using the Save Preset menu. You can start with a Factory Preset (F<n>: <name>), make modifi cations, then save
it as a User Preset (U<n>: <name>). You cannot overwrite Factory Presets. There are two ways to save Presets, Overwrite an existing User Preset, or
Save a new User Preset.

To Overwrite a User Preset,

Overwrite Preset

U1: Config - A B C D

Press ENTER to save preset

To Save a New User Preset,

STEP 1 —

Select and Edit Preset Number

U1: Config - A B C D

Con f i g - A

Edit preset number or press EXIT

HOME > PRESETS > PRESET SAVE > ENTER

SAVE

HOME > PRESETS > PRESET SAVE AS > ENTER

User Preset Number:

New Preset Name

21

SAVE

To save, press

To exit without saving, press

To confirm the save, press

To edit User Preset number, press

Scroll to desired number (1 thru 50)

To confirm User Preset number, press

ENTER

EXIT

ENTER

ENTER

ENTER

7

STEP 2 —

Name the Preset

STEP 3 —

U1: Config - A B C D

User Preset Number:

New Preset Name

Con f i g X A

Press ENTER to edit preset name

Save Preset

U1: Config - A B C D

User Preset Number:

New Preset Name

Con f i g X A

SAVE

21

21

Indicates editing

Indicates New Preset
Name selection

Indicates more positions

Up to 21 characters, A - Z / a - z / 0 - 9 / _ / - / space

When you are finished naming, press

Scroll to New Preset Name

Press

Scroll to desired position

Press

Scroll to SAVE

Press

SAVE

SAVE

Press ENTER to save preset

To confirm Save, press

Recalling Presets

Recalling a Preset changes the confi guration of the amplifi er. You can recall factory or user-defi ned presets. To Overwrite a User Preset,

ENTER

ENTER

EXIT

ENTER

ENTER

HOME > PRESETS > PRESET RECALL > ENTER

STEP 4 —

STEP 5 —

Select Preset

F1: Config - A B C D

F1: Config - A B C D

Full

1

Input Sub MF FullHFLF

Full Full Full

2

A

B

3

Confi rm Selection

F1: Config - A B C D

F18: Triamp - A+B C D

LF

1

A+B

Press ENTER to confirm selection

C

MF HF

3

C

Indicates more Presets

Scroll to desired Preset

4

D

To select the Preset conguration, press

4

D

20 Factory, up to 50 User-dened

To Conrm the selection, press

ENTER

ENTER

Bottom message changes to: “Recalling Preset now...”
You may hear relays clicking

Utilities

The Utilities section provides the following amplifi er information and functionality: Please refer to the CXD User Manual for complete details.

• STATUS

• ID

• Serial Number

• LOCKOUT

• PASSWORD

• GPIO

8

Mailing Address:

QSC Audio Products, LLC

1675 MacArthur Boulevard

Costa Mesa, CA 92626-1468 USA

Telephone Numbers:

Main Number: [phone]

Sales & Marketing: [phone] or toll free (USA only) [phone]

Customer Service: [phone] or toll free (USA only) [phone]

Facsimile Numbers:

Sales & Marketing FAX: [phone]

Customer Service FAX: [phone]

World Wide Web:

www.qsc.com

E-mail:

[e-mail]

[e-mail]

[e-mail]

If you would like a full copy of the CXD User manual, visit the QSC Audio Products website at www.qsc.com, or contact
Customer Service [phone] or toll free (USA only) [phone] to receive a copy by mail.

Si desea obtener una copia completa del manual del usuario de la CXD, visite el sitio web de QSC Audio Products en www.
qsc.com, o póngase en contacto con el Servicio al Cliente al [phone] o sin costo (sólo en EE.UU.) al [phone]
para recibir una copia por correo.

Pour obtenir un exemplaire complet du manuel d’utilisation de la CXD, allez sur le site Web QSC Audio Products à www.
qsc.com ou contactez le service clientèle au [phone] ou au [phone] (numéro vert - USA seulement) pour
recevoir un exemplaire par courrier.

Ein vollständiges Exemplar des Benutzerhandbuchs für die CXD fi nden Sie auf der QSC Audio Products-Website unter www.
qsc.com. Sie können sich unter [phone] oder unter der (nur in den USA) gebührenfreien Nummer +1 (800) 772­2834 auch an den Kundendienst wenden, um sich ein Exemplar zuschicken zu lassen.

如果您需要 CXD 产品用户手册的完整副本，请访问 QSC 音频产品网站 www.qsc.com，或致电客户
服务部门 [phone]，或拨打免费电话（仅限美国）[phone] 通过邮件获取副本。

© 2013 QSC Audio Products, LLC. All rights reserved. QSC and the QSC logo are registered trademarks of QSC Audio Products, LLC in the U.S. Patent and Trademark offi ce and

All other trademarks are the property of their respective owners. Patents may apply or be pending.

other countries. Neutric is a trademark of Neutric Inc.

9