QSC CXD-Q User manual

CXD-Q 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 flash 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 sufficient 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: This Quick Start Guide is based on the basic configuration as the amplifier comes from the factory. For detailed instructions for
custom configurations refer to the CXD-Q User Guide (TD-000438).
Rack-Mount the Amplifier
1. Secure the amplifier in the rack with eight screws (not supplied), four in front, four
in back.
— Figure 1 —
TD-000437-00-A
*TD-000437-00*

2
TD-000437-00-A
Connections
Q-Sys Q-LAN
Connect the amplifier LAN A, and if available, LAN B, to the Q-LAN network. (Figure 2) Refer to your Q-Sys documentation for
network requirements and connection detail.
Inputs
The analog inputs are converted to digital audio in the CXD-Q amplifiers and then routed to the Q-Sys
Core over the network. The digital signals show up in Q-Sys Designer at the CXD-Q input component
where they can be routed as needed. Refer to the Q-Sys documentation.
1. Wire the audio line-level source to up to four Euro-style connectors (supplied). You may use either
balanced inputs (Figure 3) or unbalanced inputs (Figure 4).
2. Plug the connectors into the appropriate receptacles (Routable Inputs 1, 2, 3, 4) Figure 5.
WARNING!: Do not turn the amplifier on at this time.
3. Connect the IEC power cord to the AC receptacle on the rear of the amplifier. (Figure 6)
GPIO
Refer to "GPIO" on page 8 for details about using the GPIO.
Outputs and Configuration
The configuration of the amplifier and the amplifier component in the Q-Sys design file must match.
Double check that these are identical and if necessary change the configuration by following the
instructions on the front panel of the amplifier. When the output configuration of the amplifier
changes, the Outputs to the loudspeakers change accordingly. Use the diagrams shown in Figure
8thru Figure 10 as a reference for wiring the loudspeakers. After connecting the outputs to the
loudspeakers, you may turn the amplifier on.
Figure 8 through Figure 11 are examples of the three types of output configurations: Separate, Bridged and Parallel. The tables to the right of the
loudspeaker connections give all the possible configurations and their connections.
Separate Channels (A B C D)
— Figure 2 —
LAN A LAN B
— Figure 3 —
Balanced
—
+
— Figure 4 —
Unbalanced
—
+
— Figure 5 —
ROUTABLE INPUTS
2143
— Figure 6 — — Figure 7 —
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
— Figure 8 —
CH AB
T1+
T3+
T2-
T4-
CH CD
T5+
T7+
T6-
T8-
CH ABC
T1+
T3+
T5+
T2-
T4-
T6-
CH ABCD
T1+
T3+
T5+
T7+
T2-
T4-
T6-
T8-
CH AB+CD
T1+
T3+
T5-
T7-
CH C+D
T5+T7-
CH A+B
T1+T3-
BRIDGED
CH A
CH D
CH C
CH B
+
+
+
+
-
-
-
-
T1
T4
T3
T2
T5
T8
T7
T6
PARALLEL CHANNEL
COMBINING APPLICATIONS
CHANNEL CONFIGURATION
4 Channels: A B C D
Channel Configuration Locked to Design
Q A Q B Q C Q 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)
OUTPUTS TO SPEAKERS
SETTINGS CAN BE
CONFIGURED FOR
70V, 100V AND
200V DIRECT
OUTPUT.

3
TD-000437-00-A
Bridged (A+B) and Separate (C D) Channels
Parallel Channels (ABCD)
Connect the Loudspeakers
1. Connect the loudspeaker wiring to the 8-pin Euro-style connector as needed for
your amplifier's configuration.
2. Install the female 8-pin Euro-style connector onto the male connector on the rear of
the amplifier as shown in Figure 11.
3. Use a Phillips screwdriver to secure the connector.
— Figure 9 —
CH AB
T1+
T3+
T2-
T4-
CH CD
T5+
T7+
T6-
T8-
CH ABC
T1+
T3+
T5+
T2-
T4-
T6-
CH ABCD
T1+
T3+
T5+
T7+
T2-
T4-
T6-
T8-
CH AB+CD
T1+
T3+
T5-
T7-
CH C+D
T5+T7-
CH A+B
T1+T3-
BRIDGED
CH A
CH D
CH C
CH B
+
+
+
+
-
-
-
-
T1
T4
T3
T2
T5
T8
T7
T6
PARALLEL CHANNEL
COMBINING APPLICATION
S
3 Channels: A+B C D
CHANNEL CONFIGURATION
Channel Configuration Locked to Design
Q A+B Q C Q D
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
OUTPUTS TO SPEAKERS
SETTINGS CAN BE
CONFIGURED FOR
70V, 100V AND
200V DIRECT
OUTPUT.
— Figure 10 —
CH AB
T1+
T3+
T2-
T4-
CH CD
T5+
T7+
T6-
T8-
CH ABC
T1+
T3+
T5+
T2-
T4-
T6-
CH ABCD
T1+
T3+
T5+
T7+
T2-
T4-
T6-
T8-
CH AB+CD
T1+
T3+
T5-
T7-
CH C+D
T5+T7-
CH A + B
T1+T3-
BRIDGED
CH A
CH D
CH C
CH B
+
+
+
+
-
-
-
-
T1
T4
T3
T2
T5
T8
T7
T6
PARALLEL CHANNEL
COMBINING APPLICATION
S
CHANNEL CONFIGURATION
1 Channel: A B C D
Channel Configuration Locked to Design
Q 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-
SETTINGS CAN BE
CONFIGURED FOR
70V, 100V AND
200V DIRECT
OUTPUT.
OUTPUTS TO SPEAKERS
T1+, T3+, T5+, and T7+ are electrically the same point
T2-, T4-, T6-, and T8- are electrically the same point
— Figure 11 —

4
TD-000437-00-A
Amplifier Control
NOTE: The following scenarios assume that the amplifier
is connected to the Q-Sys Core via Q-LAN. When the
amplifier is not connected to the Q-Sys Core, it is in a Fault
mode, and not operational.
Off Mode
• Rear power switch is off, the amplifier is not operable. The power
switch is the AC Mains disconnect.
• The power button is not illuminated.
• Turn the power switch to on. The amplifier enters the mode in which
it was when power was removed – Run, Mute All, or Standby.
Run Mode
• From Standby or Mute All mode, press and release the power button
on the front panel. The amplifier is in Run Mode.
• The power button is illuminated green.
• The amplifier is fully operable; audio can pass.
Standby Mode
• From Mute All or Run mode, press and hold the power button on
the front panel for approximately four seconds.
• The power button illuminates solid red.
• The amplifier is not operable; audio will not pass.
Mute All Mode
• From the Run Mode, quickly press and release the power button.
• The power button flashes red, all output Mute buttons are red.
• The amplifier output is disabled, but the front panel is fully operable.
Master Control Knob
• Adjusts the Gain for the selected channel or channels. At least one
channel must be selected.
• When one or more channels are selected, turn the Master Control
knob to jump to the Gain screen. After a few seconds with no activity,
it returns to the earlier screen.
• If there is more than one channel selected, and the gains for those
channels are different, the difference is maintained unless the gain is
raised or lowered to the limits for both channels.
NEXT and PREV Buttons
• Navigates forward and
backwards through the screens.
ID Button
• Press this button to display a
screen with the amplifier's network name. In addition, the ID buttons
on the associated Q-Sys Amplifier component and the associated
Q-Sys Configurator item flashes. Press again, or click one of the other
ID buttons, to stop the flashing and exit the screen.
• When prompted, press this button to change the amplifier
configuration to match the configuration of the associated
Q-Sys design.
SEL Buttons
• Use these buttons to select an output channel in order to change
the Gain.
• Select more than one channel to change multiple gain settings at the
same time.
• If two or more outputs are bridged or in parallel, pressing one button
in the group selects all channels in that bridged or parallel group.
NEXT
PREV
ID
SEL

5
TD-000437-00-A
Inputs and Outputs
The CXD-Q amplifiers have four Mic/Line Inputs and four amplified Outputs on the rear of the amplifier. The Inputs and Outputs on the rear of the
amplifier are not connected inside the amplifier.
The analog inputs are converted to digital audio in the CXD-Q amplifiers and then routed to the Q-Sys Core via Q-LAN (LAN A, LAN B). The digital
signals are brought into the design in the CXD-Q Amplifier Input component. From the CXD-Q Input component the signals can be sent anywhere
within the system.
Likewise, in Q-Sys Designer digital signals are received at the CXD-Q Output component and fed from the Q-Sys Core to the analog amplified outputs
of the CXD-Q via Q-LAN. The CXD-Q output component can have one to four outputs depending on the configuration of the amplifier. The desired
configuration is selected in the properties menu for that amplifier. Use the ID button on the front panel of the amplifier to accept the configuration.
Screens
Channel Configuration Screens
1. Graphic representations of the amplifier's output configuration. Inputs (Q) are from Q-Sys,
outputs (A-D) show the amplifier channels and their configuration.
2. Text indicating how many channels, and the output configuration. For possible
configurations refer to the Q-Sys help for the CXD-Q Amplifier component.
3. Status of the amplifier and Q-Sys design indicating the design and amp are in synch.
4. Status of the amplifier indicating that action is necessary to synchronize the design and
amplifier.
5. Action you need to perform to change the amplifier configuration. Press the ID button to
the right of the message.
Status Screen
1. DEVICE: This is the hostname (network name) of the amplifier. A default name is given at
the factory, similar to the example. You may change the name in the Q-Sys Configurator.
2. DESIGN: This is the name of the Q-Sys design containing the amplifier. The amplifier must
be in a running design to operate.
3. STATUS: Displays the current status of the amplifier both in text and color. The following is
a list of possible status colors, and some example conditions.
• OK – Green – Audio is good, hardware is good.
• Compromised – Orange – Audio is good but a redundancy mechanism is active (one
LAN down but the other is still up) or a non-fatal hardware problem exists (fans too
slow, temperature higher than expected, etc.)
• Fault – Red – Audio is not passing, or hardware is malfunctioning or mis-configured
(amplifier power off, audio streams broken, amplifier fault, loudspeaker short circuit,
etc.)
• Initializing – Blue – In the process of initialization, and design start. Audio is not passed.
— Figure 12 —
Q-LAN CXD4.3Q In
cxq-1234
Q-Sys
DSP, Routing,
and so on.
CXD4.3Q Out
cxq-1234 Q-LAN
ROUTABLE INPUTS
2143
CH A
CH D
CH C
CH B
+
+
+
+
-
-
-
-
T1
T4
T3
T2
T5
T8
T7
T6
CXD-Q Input
Com
p
onent
CXD-Q Output
Com
p
onent
— Figure 13 —
4 Channels: A B C D
Channel Configuration Locked to Design
Q A Q B Q C Q D
CHANNEL CONFIGURATION
1
2
3
CHANNEL CONFIGURATION
4 Channels: A B C D
Q A Q B Q C Q D
Design requires 3 Channels: A+B C D
Press ID to Accept
4
5
— Figure 14 —
1
5
6
STATUS
GAIN AB: -27.0 dB GAIN C: 0 dB
GAIN D: 10.0 dB
DEVICE: CXQ-1234
DESIGN: My Design Filename
STATUS: OK
FIRMWARE: 4.0.00
2
3
4

6
TD-000437-00-A
4. FIRMWARE: The Q-Sys Designer firmware version. To update the firmware:
a. The version you want to use must be installed on your PC,
b. The amplifier must be connected to the network, and turned on.
c. Open the Q-Sys design containing the amplifier and select "Save to Core and Run" from the File menu.
d. The amplifier Q-LAN processor and any other Q-Sys peripherals in the design are automatically updated.
5. GAIN A - D: Displays the current Gain setting for each channel. If channels are combined, they are displayed together. The green background gives
a graphical indication of the Gain.
LAN A / LAN B Screen
1. Default IP Address. You can change this and the other parameters in Q-Sys Configurator.
LAN A is required, and cannot be turned off.
2. Default Netmask.
3. Default Gateway.
4. LAN B is not required, as indicated by empty fields in Figure 15.
Health Screen
1. FAN Speed – varies depending on the temperature.
2. TEMP – three different temperatures, are monitored and automatically put the amplifier
into limiting or shutdown if the limits below are exceeded.
• Thermal Limiting starts at 69ºC
• Thermal Shutdown at 80ºC
3. Voltage Rails
• VRail 1 = +147VDC +/- 5V typical
• VRail 2 = -147VDC +/- 5V typical
Output Screens
Each output or group of outputs has a dedicated screen. Figure 17 is an example of Output A.
1. GAIN – The amount of gain applied to the input signal. Controlled by the GAIN knob on
the front panel of the amplifier, or the GAIN control in the CXD-Q Output component in
the Q-Sys Design.
2. INPUT – The level of the audio signal applied to the CXD-Q Output component in the
Q-Sys design. The CXD-Q Output component is the connection to the output section of
the amplifier. This meter reading can be changed from RMS to Peak in the Amplifier Out
component in the Q-Sys design.
3. VOLTAGE - The voltage being delivered to the loudspeaker. This reading can be RMS or
Peak depending on the Meter Select setting in the Q-Sys design for the associated channel.
4. POWER – The power of the amplifier / loudspeaker circuit. This reading can be RMS or
Peak depending on the Meter Select setting in the Q-Sys design for the associated channel.
5. HEADROOM – The amount of room left before reaching the amplifier's maximum capabilities.
6. DAC LIMIT – When illuminated, this indicates that the signal to the D to A Converter is larger than can be reproduced and a limiter has been
engaged to prevent clipping. This is an indication that the gain structure is not correct.
7. PROTECT – When illuminated, this indicates that the channel is in Protect Mode. Usually due to driving too low of an impedance for too long.
8. LIMIT – When illuminated, this indicates the amplifier limiter is active. This occurs if the signal is driving the power, current, or voltage above the
amplifier rated values or due to thermal limiting.
— Figure 15 —
LAN A
1
2
3
4
LAN B
GATEWAY:
0.0.0.0
NETMASK:
255.255.0.0
IP ADDRESS:
192.168.xxx.xxx
GATEWAY:
NETMASK:
IP ADDRESS:
— Figure 16 —
HEALTH
1
FAN: 1109
PSU TEMP: 35.3°C
CH A&C Temp: 35.4°C
2
CH B&D Temp: 35.3°C
VRAIL 1: 149
VRAIL 2: -151
3
— Figure 17 —
OUTPUT A
1
GAIN:
-23.0 dB
2
Q-LAN INPUT:
-45.0 dB
3
POWER:
.011 W
4
HEADROOM:
-41.3 dB
DAC LIMIT PROTECT CLIP LIMIT
67 89
VOLTAGE:
.777 V
5

7
TD-000437-00-A
Output Gains Screen
The Output Gains screen provides a quick overview of all outputs and is the screen on which
GAIN adjustments are made.
Use the NEXT or PREV buttons to access this screen or, press one or more of the SEL buttons
to access the screen and make GAIN adjustments for the selected channels. If you press one
or more of the SEL buttons, and do not make any GAIN adjustments, this screen remains
visible for a short time the returns to the previous screen.
1. The highlighted background indicates that the Channel is selected by the SEL button.
2. Channel – the channels display according to the configuration of the amplifier.
3. Output Gain – the output gain is controlled by the GAIN knob on the amplifier or with the
Gain control in the CXD-Q Output component in the Q-Sys design.
4. Q-LAN Input Level – the level of the audio signal applied to the CXD-Q Output component in the Q-Sys design. The CXD-Q Output component is
the connection to the output section of the amplifier.
5. Voltage – The voltage applied to that output.
6. Output B is combined with Output A, the slot for Output B is removed.
— Figure 18 —
OUTPUT GAINS
Q-LAN: -8.08 dB
VOLTS: 101 V
C-100.0 dB
.014 V
Q-LAN:
VOLTS:
D-100 dB
.014 V
Q-LAN:
VOLTS:
-45.0 dB
-45.0 dB
-45.0 dB
AB
4
5
231
6

8
TD-000437-00-A
GPIO
Connector
Pin
GPIO # and
Function
Specifications
1 3.3 V 100 mA max (power cycle to reset current limiting IC)
2 GPIO 1 5mA in/out, 3.3V max, 127 Ohm resistor in series
3 GPIO 2 5mA in/out, 3.3V max, 127 Ohm resistor in series
4 GND Ground
5 GPIO 3 5mA in/out, 3.3V max, 127 Ohm resistor in series
6 GPIO 4 5mA in/out, 3.3V max, 127 Ohm resistor in series
7 GND Ground
8 GPIO 5 18mA in/out max, 3.3V max, 127 Ohm resistor in series
9 RELAY NO Relay Normally Open
10 RELAY COM Relay Common
11 RELAY NC Relay Normally Closed
12 GND Ground
13 GPIO 6 18mA in/out max, 3.3V max, 127 Ohm resistor in series
14 GPIO 7 18mA in/out max, 3.3V max, 127 Ohm resistor in series
15 GND Ground
16 GPIO 8 18mA in/out max, 3.3V max, 127 Ohm resistor in series
Examples
— Figure 19 —
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
— Figure 20 —
Q-Sys-Powered LED
Works for LEDs up to 18 mA.
Current is limited in the GPIO circuit
by a 127Ω resister in series.
Button or Contact Closure
GPIO
Ground
Potentiometer
GPIO
Analog In
Ground
+3.3 V
GPIO 5-8
Ground
10 kΩ

9
TD-000437-00-A
© 2014 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 office and
other countries. All other trademarks are the property of their respective owners.
http://patents.qsc.com.
If you would like a full copy of the CXD-Q 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-Q, 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 (800)
772-2834 para recibir una copia por correo.
Pour obtenir un exemplaire complet du manuel d’utilisation de la CXD-Q, 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-Q finden 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)
772-2834 auch an den Kundendienst wenden, um sich ein Exemplar zuschicken zu lassen.
如果您需要 CXD-Q 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。
Contact
Mailing Address
QSC Audio Products, LLC
1675 MacArthur Boulevard
Costa Mesa, CA 92626-1468 U.S.
Main Number
[phone]
World Wide Web
www.qscaudio.com
Sales & Marketing
Voice
[phone] International
Toll free (U.S. only) [phone]
FAX
[phone]
E-mail
[email protected]
Support
24/7 Support
QSC offers 24/7 support on Q-Sys™
Networked Audio Systems only.
Full Support for all QSC Products
Business Hours: 6 AM to 5 PM Pacific Time (Mon-Fri)
Tel. [phone] (U.S. only)
Tel. [phone]
Fax. [phone]
Q-Sys Emergency-only After-Hours and Weekend Support*
Tel: [phone] (U.S./Canada)
Tel: [phone] (non-U.S.)
* After hours calls are guaranteed a 30 minute response time from a
Q-Sys Support Team member. For Q-Sys ONLY!
E-mail
[email protected]
(An immediate e-mail response is not guaranteed. For URGENT issues
use the phone numbers above.)
Q-Sys™ Customer Support