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CXD Amplifiers
User Manual
CXD4.2 — 4 Channel, 1600 W Amplifi er
CXD4.3 — 4 Channel, 2500 W Amplifi er
CXD4.5 — 4 Channel, 5000 W Amplifi er
TD-000367-01-A
*TD-000367-01*
EXPLANATION OF 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.
IMPORTANT SAFETY INSTRUCTIONS
WARNING!: TO PREVENT FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE.
• Keep these instructions.
• Heed all warnings.
• Follow all instructions.
• Do not use this apparatus near water.
• Clean only with a dry cloth.
• Do not block any ventilation opening. Install in accordance with the manufacturer's instructions.
• Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifi ers) that produce heat.
• Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. If the provided plug does not fi t into your outlet, consult an electrician for replacement of the obsolete outlet.
• Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.
• Only use attachments/accessories specifi ed by the manufacturer.
• Unplug this apparatus during lightning storms or when unused for long periods of time.
• Refer all servicing to qualifi ed service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.
• The appliance coupler, or the AC Mains plug, is the AC mains disconnect device and shall remain readily operable after installation.
• Adhere to all applicable, local codes.
• Consult a licensed, professional engineer when any doubt or questions arise regarding a physical equipment installation.
TD-000367-01-A
2
FCC Statement
NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC
Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.
RoHS STATEMENT
The QSC CXD4.2, CXD4.3 and CXD4.5 amplifi ers are in compliance with European Directive 2002/95/EC – Restriction of Hazardous
Substances (RoHS).
The QSC CXD4.2, CXD4.3 and CXD4.5 amplifi ers are in compliance with “China RoHS” directives. The following chart is provided for product use in
China and its territories:
部件名称
(Part Name)
铅
(Pb)
汞
(Hg)
QSC CXD4.2, CXD4.3, and CXD4.5 Amplifi ers
有毒有害物质或元素
(Toxic or hazardous Substances and Elements)
镉
(Cd)
六价铬
(Cr(vi))
多溴联苯
(PBB)
电路板组件
(PCB Assemblies)
机壳装配件
(Chassis Assemblies)
X
X
O
O
O
O
O
O
O
O
O: 表明这些有毒或有害物质在部件使用的同类材料中的含量是在 SJ/T11363_2006 极限的要求之下。
多溴二苯醚
(PBDE)
O
O
(O: Indicates that this toxic or hazardous substance contained in all of the homogeneous materials for this part is below the limit requirement in SJ/T11363_2006.)
X: 表明这些有毒或有害物质在部件使用的同类材料中至少有一种含量是在 SJ/T11363_2006 极限的要求之上。
(X: Indicates that this toxic or hazardous substance contained in at least one of the homogeneous materials used for this part is above the limit requirement in SJ/T11363_2006.)
TD-000367-01-A
3
Warranty (USA only; other countries, see your dealer or distributor)
QSC Audio Products 3 Year Limited Warranty
QSC Audio Products, LLC (”QSC”) guarantees its products to be free from defective material and/or workmanship and will replace defective parts and repair malfunctioning products under this warranty when the defect occurs under normal installation and use, provided the unit is returned to our factory, one of our authorized service stations or an authorized QSC International Distributor via pre-paid transportation with a copy of proof of purchase (i.e., sales receipt). This warranty provides that the examination of the return product must indicate, in our judgment, a manufacturing defect. This warranty does not extend to any product which has been subjected to misuse, neglect, accident, improper installation, or where the date code has been removed or defaced. QSC shall not be liable for incidental and/or consequential damages. This warranty gives you specifi c legal rights. This limited warranty is freely transferable during the term of the warranty period. The warranty on QSC products is NOT VALID if the products have been purchased from an unauthorized dealer/online e-tailer, or if the original factory serial number has been removed, defaced, or replaced in any way. Damage to, or loss of any software or data residing on the product is not covered. When providing repair or replacement service, QSC will use reasonable efforts to reinstall the product’s original software confi guration and subsequent update releases, but will not provide any recovery or transfer of software or data contained on the serviced unit not originally included in the product.
Customers may have additional rights, which vary from state to state or from country to country. In the event that a provision of this limited warranty is void, prohibited or superseded by local laws, the remaining provisions shall remain in effect.
The QSC limited warranty is valid for a period of three (3) years from date of purchase in the United States and many (but not all) other countries.
For QSC warranty information in countries other than the United States, contact your authorized QSC international distributor. A list of QSC
International distributors is available at www.qsc.com.
To register your QSC product online, go to www.qsc.com and select ”Product Registration”. Other questions regarding this warranty can be answered by calling, e-mailing or contacting your authorized QSC distributor.
Phone: 1-800-854-4079 within US and Canada, +1-714-754-6175 international, Email: [email protected], Website: www.qsc.com.
TD-000367-01-A
4
Introduction
Built for system integrators, the CXD series amplifi ers provide multi-channel amplifi cation with built-in DSP and enough power to drive wide varieties of speaker systems with optimal energy effi ciency. The CXD Series consists of three light-weight, 2RU, four-channel amplifi ers with on-board DSP and fl exible channel combining as well as 70V and 100V direct drive. These amplifi ers not only provide the power and processing to make your system perform better, they offer outstanding effi ciency ensuring that energy costs are kept to a minimum over the life of the installation.
CXD amplifi ers feature Flexible Amplifi er Summing Technology (FAST). Depending on the model, 1600, 2500, or 5000 Watts of total power can be distributed across one to four outputs. In addition, the CXD4.3 and CXD4.5, can drive 70V or 100V speaker lines directly from any one or all of the four outputs. This fl exibility allows CXD Series amplifi ers to drive (for example) two full-range, surface-mounted loudspeakers along with a subwoofer and one 100 V distributed loudspeaker line; or a high-power subwoofer and a bi-amplifi ed full-range loudspeaker; three 70V distributed loudspeaker lines and a subwoofer; or a single very high-power channel to drive monster subwoofers.
The CXD Series amplifi ers use QSC’s third-generation class-D power amp design in combination with a custom power stage utilizing a new output device. In addition, CXD amplifi ers employ the proven PowerLight power supply in conjunction with Power Factor Correction (PFC) which aligns the current waveform with the AC mains voltage waveform. PFC enables the CXD Series amplifi ers to draw current from the wall in a more effi cient and controlled manner resulting in very high power from a single standard AC breaker. Additionally, the CXD Series amplifi ers offer multi-stage sleep modes saving energy when possible without sacrifi cing performance. The result is an exceptionally powerful and fl exible platform that offers low weight and effi ciency.
With four channels of amplifi cation plus signal processing in just 2RUs, the CXD series replaces equipment taking up as much as three times the rack-space.
A single CXD Series amplifi er is a capable and sophisticated loudspeaker processor. Integration of processing and amplifi cation means that the DSP knows exactly what the amplifi er is doing so dynamics processing can be far more accurate and effective. This approach employs both RMS and Peak
Limiters that allow the amplifi er and loudspeaker to produce more output without being pushed to distortion or destruction.
The on-board DSP offers four channels of cross-over fi lters, parametric EQ/Low-shelf/High-shelf, alignment delay and dynamics processing — everything needed to optimize a loudspeaker system. Additionally when using QSC loudspeakers, CXD amplifi ers provide Intrinsic Correction™, a combination of fi ltering, limiting and loudspeaker knowhow that was fi rst developed for QSC's WideLine line-array loudspeakers. Intrinsic Correction compensates for the non-linearity in array and horn design resulting in exceptional performance.
The CXD also includes manufacturers' recommended tunings for the most popular passive loudspeakers. A system setup wizard helps you select the right preset, or select one of the 20 confi guration templates and create tunings that you can save in the user preset library.
With a dedicated front panel user interface, complete with LED meters and indicators, a 400 x 240 TFT color display, a rotary encoder and navigation buttons, the CXD amplifi ers provide an intuitive means to control the system.
Unpacking
There are no special unpacking instructions. You may want to keep the shipping material for the unlikely event that the amplifi er should need returning for service.
Package Contents
1. Quick-Start Guide TD-000350-00
2. Warning Information Sheet TD-000420-00
3. CXD Amplifi er
4. IEC AC Power Cord
5. Euro-style Connector Plug, 3-pin (4)
6. Euro-style Connector Plug, 8-pin (1)
7. Euro-style Connector Plug, 3.5 mm, 2-pin (1)
8. Euro-style Connector Plug, 3.5 mm, 3-pin (1)
9. USB Cable (1)
TD-000367-01-A
5
Features
Amplifi er Front Panel
1
2
6
7
8
9
10
3
4
5
— Figure 1 —
1. Output channels are labeled A, B, C, and D
2. Output Channel Mute Buttons and LEDs (Red)
3. Output Channel Limiter LEDs (Red)
4. Output Channel -10 dB Below Limiter Activation LEDs (Blue)
5. Output Channel -20 dB Below Clip LEDs (Blue)
6. Soft Power Button (Blue/Red)
7. Channel Select Buttons and LEDs (Amber for Input, Blue for Output)
8. Input Channel Clip LEDs (Red)
9. Input Channel Signal-Present LEDs (Blue)
10. Input channels are labeled 1, 2, 3, and 4
11. LCD Graphic Display
12. HOME Button
13. ENTER Button
14. MASTER CONTROL Knob
15. EXIT Button
16. GAIN Button
11
12
13
14
15
16
Amplifi er Rear Panel
NOTE: The CXD4.3, and CXD4.5 models have a different rear panel confi guration than the CXD4.2 rear panel. The difference is that the position of the fan and the eight-pin Euro-style connector and associated information are interchanged.
4 6 7 1 2 3
USB
HEARTBEAT
GPO
GPI
THIS PRODUCT SHOULD BE SUPPORTED ON ALL
FOUR CORNERS WHEN INSTALLED IN A RACK
OUTPUTS TO SPEAKERS
-
+
-
-
+
-
5
T4
T5
T6
T7
T8
T1
T2
T3
SETTINGS CAN BE
CONFIGURED FOR
70V, 100V AND
200V DIRECT
OUTPUT.
PARALLEL CHANNEL
COMBINING APPLICATIONS
T1
T3
CH AB
T2
T4
T5
T7
+
+
T6
T8
-
-
BRIDGED
T1
CH A + B
+ T3 -
T5
CH C + D
+ T7 -
T1
CH ABC
T3
T5
T2
T4
T6
CH AB
T1
T3
+
T5
T7
CD
-
CH ABCD
T1
T3
T5
T7
+
+
T2
T4
T6
T8
-
-
8 9 10
1. USB Type B, four-pin
2. GPO/Heartbeat (output) Euro-style Connector, 3-pin
3. GPI (input) Euro-style Connector, 2-pin
4. Four three-pin Euro-style Connectors
5. One eight-pin Euro-style Loudspeaker Connector
— Figure 2 —
6. Cooling fan
7. AC Power Switch
8. Locking IEC Power Connection
9. Rear Rack-mount Bracket (CXD4.3 and CXD4.5)
10. Front Rack-mount Brackets
TD-000367-01-A
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Amplifi er Control
A B OUTPUT C D
ENTER Button
• Navigates into the menu structure
• Enters the edit mode for adjusting parameters
• Confi rms the changes you make, and exits the edit mode.
ENTER
MASTER
CONTROL
MUTE MUTE MUTE MUTE
HOME
LIM
-10
-20
ENTER
EXIT
EXIT Button
• Navigates out of the menu structure and parameter selection.
• In the edit mode, pressing EXIT reverts the value back to its prior state, and exits the edit mode.
EXIT
SEL SEL SEL SEL
1
CLIP
2
SIG
INPUT 3 4
— Figure 3 —
GAIN
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.
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 mode it was in when power was removed. The power button is illuminated based on the mode.
• If GPI is enabled, the Off Mode button is disabled.
GAIN Button
GAIN 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.
• The Gain button illuminates green when selected.
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.
• If GPI is enabled, the Run Mode button is disabled.
Standby Mode
• From Mute All or Run modes, press and hold the power button on the front panel for two to three seconds.
• The power button illuminates solid red.
• The front panel LCD is off.
• The amplifi er is not operable; audio will not pass.
• If GPI is enabled, the Standby Mode button is disabled.
Mute All Mode
• From the Run Mode, quickly press and release the power button.
• The power button fl ashes red.
• The outputs are muted and amplifi ers are off.
• The front panel and DSP functionality are fully operable. Any changes you make are saved and take effect in the Run Mode.
• If GPI is enabled, the Mute All Mode button is disabled.
SEL Buttons
SEL 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.
• The SEL buttons illuminate blue for output channels, and amber for input channels.
LIM LEDs
• Illuminates red when the Limiter is engaged.
-10 and -20 LEDs
• Indicates the output level of the channel.
LIM
-10 & -20
CLIP LEDs
• Illuminates red when the input signal is being clipped.
CLIP
SIG LEDs
• Illuminates blue when a signal is present.
SIG
Master Control Knob
• Scrolls up/down and right/left to select menu items and parameters
TD-000367-01-A
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CXD Amplifi er Signal Flow
1
2
3
4
Input Settings
Sensitivity
Switch
A/D
Sensitivity
Switch
A/D
Sensitivity
Switch
A/D
Sensitivity
Switch
A/D
Meter
Meter
Meter
Meter
Gain
Gain
Gain
Gain
Mixer
Mixer
Mixer
Mute
Mute
Mute
Mixer Mute
Button
Actuated
Output Processing pass
Filter pass
Filter pass
Filter pass
Filter
Gain /
Polarity pass
Filter
Gain /
Polarity pass
Filter
Gain /
Polarity
Gain /
Polarity pass
Filter pass
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
D/A
D/A
D/A
D/A
Crossover
— Figure 4 —
Amp Config.
A Meter
B Meter
C Meter
D Meter
Set by
Preset or Wizzard
Screen Types
Informational
Informational screens, like the HOME screen, are designed to provide you with a good amount of useful information at a glance.
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.
F1: A B C D
Home (Press HOME for more information)
Full
A - FR
+1.5 dB
Full
B - FR
+3.5 dB
Full
C - FR
+1.5 dB
Full
D - FR
+1.5 dB
AC Voltage:
121 V
Amp Status:
OK
AC Current:
7.2 A
— Figure 5 —
F1: A B C D
Menu
PRESETS
Preset Recall and Save
INPUTS
— Figure 6 —
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.
F1: A B C D
Gn/Pol
Gain
-7.0 dB
— Figure 7 —
Polarity
POL+
Preset # and Configuration
Location and breadcrumbs
Channel Configuration and Gain
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)
Output
A
20 dB
-60 dB
Gain
-7.0 dB
Parameter being edited
Parameter not selected
Parameter selected
TD-000367-01-A
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Menu Tree
Presets
Preset Recall
Preset Save
Preset Wizard
Inputs
Input Sensitivity
Input Gain
Outputs
Mixer w/Noise & Tone
Mode (Lo-Z, 70V, 100V)
Spkr Processing
Crossover
PEQ
Delay
Limiter
Array Correction*
Load Speaker
Save Speaker
Utilities
Status
Amp ID
Display
Lockout
Password
GPIO
*For QSC Line Arrays only
About Presets
The CXD amplifi ers are preset driven. In order 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 (inputs and outputs), DSP and loudspeaker assignments. When a preset is recalled it can change the output routing and wiring and/or any of the DSP settings.
The CXD amplifi ers come with 20 unchangeable factory presets, and 50 user-defi ned presets. The factory presets are designed to be starting points for creating the presets you need for your particular installation. Factory presets F1: thru F9: have no DSP or loudspeaker assignments, only output confi gurations. Factory presets F10: thru F20: include basic settings along with the output confi gurations.
Creating User-defi ned Presets
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.
Save As a New Preset
After selecting a starting preset, navigate through the Input and Output menus to select and modify the parameters needed for your system. After modifying the parameters for each channel, return to the Preset menu and save your work. If you started with a user-defi ned preset, you can update the preset you started with using the SAVE function or, you can use the SAVE AS function.
Preset Wizard
The Preset Wizard simplifi es the preset creation process, and allows you to create a preset from the ground up. The Preset Wizard provides a mechanism for you to select the desired power and load. Based on these selections, the best amplifi er confi guration is selected and you are then allowed to select and assign loudspeakers to each output.
NOTE: By default, all 50 of the user-defi ned presets are confi gured the same as factory preset F1. Either method described above
"overwrites" some existing preset. The main difference is the SAVE function overwrites only the preset number you started with, and the
SAVE AS function allows you to save to a different user preset number and change the name.
TD-000367-01-A
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Installation
The following steps are written in the recommended installation order.
Mount the CXD Amplifi er
The CXD Series amplifi ers are designed to be mounted in a standard rack-mount unit.
The amplifi ers are 2RU high, the CXD4.3 and CXD4.5 are 381 mm (15 in) deep, the
CXD4.2 is 229 mm (9 in) deep.
Depending on the depth of your rack, the Rear Rack Ear Support kit (FG-000031-00) may be required for rack mounting. Refer to http://qsc.com/products/ under
Accessories for details.
CAUTION!: Be sure that nothing is blocking the front or rear ventilation openings, and that each side has a minimum of
2 cm clearance.
— Figure 8 —
1. Use the proper fastening hardware (not included) to secure the amplifi er in the rack. The CXD4.3 and CXD4.5 have four front and four rear mounting tabs. The CXD4.2 has four front mounting tabs.
AC Mains
WARNING!: When the AC Power is on, there is a potential of having dangerous voltage at the output terminals on the rear of the amplifi er. Use caution not to touch these contacts. Turn off the AC Mains disconnect switch prior to making any connections.
The CXD amplifi ers have a Universal power supply 100 – 240 VAC, 50 – 60 Hz, with an IEC locking connector.
1. Connect the IEC AC cable between the amplifi er rear AC connector and the AC source.
AC Power
— Figure 9 —
NOTE:
If the amplifi er has no audio for fi fteen minutes, the amplifi er stops switching. The amplifi er returns to the Run mode the instant audio is present.”
When you remove power from the amplifi er, then re-apply the power, the amplifi er returns to its last state.
TD-000367-01-A
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Inputs
Connect the Audio Inputs
USB
ROUTABLE INPUTS
1 2 3 4
Unbalanced Balanced
HEARTBEAT
GPO
GPI
— Figure 10 — — Figure 11 — — Figure 12 —
There are four three-pin Euro-style connectors labeled 1 through 4 providing the audio inputs on the CXD Amplifi ers. A single input can be mixed to one or a combination of outputs. You can use from one to four of the inputs. The inputs are 10 k Ω balanced or unbalanced, with a sensitivity of either +4 or +14 dBu.
1. Make sure your audio source devices are powered off.
2. Connect the input source wires to the Euro-style connectors as shown. ( Figure 11 and
Figure 12 )
3. The CXD Series has the capability of routing the inputs to different outputs. Be sure that the connections you make here match the confi guration of the amplifi er.
4. Plug the Euro-style audio connectors into the appropriate inputs on the rear of the amplifi er.
+ -
+ -
+ -
+ -
USB (Optional)
The USB cable (supplied) connects to a Mac or PC for use with the Amplifi er Navigator software. You can update the amplifi er fi rmware, save and deploy confi guration fi les, and more. Refer to the Amplifi er Navigator online help for details.
— Figure 13 —
GPIO/Heartbeat
There are two 3.5 mm Euro-style connectors on the rear of the amplifi er.
• Heartbeat — The heartbeat output supplies a square wave signal of 1 Hz @ 3.3 V. This signal can connect to a life-safety system to monitor the go/no-go condition of the amplifi er. The amplifi er must be completely incapable of producing output for the heartbeat signal to stop. A missing heartbeat alerts the life-safety system of the disabled condition. A user-initiated condition such as muting the outputs, placing the amplifi er in
Standby mode, or placing the amplifi er in Mute All mode, does not stop the heartbeat.
• GPO — The functionality of this general purpose output pin has not been determined as of the release of this document.
• GPI — This input is used to put the amplifi er into Standby from a remote location. When the GPI is enabled in the Utilities menu, then is shorted to ground, the amplifi er goes into the Standby mode. The front-panel power button is disabled when GPI is enabled.
TD-000367-01-A
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Outputs
The CXD amplifi ers have four confi gurable outputs. You can set the power, combine outputs (bridged and parallel), and adjust the DSP for each output. When the output confi guration of the amplifi er changes, the output terminals, controlled by relays, change accordingly. Use the diagrams shown in Figure 15 thru Figure 23 as a reference for wiring the loudspeakers .
Select the Output Confi guration
The fi rst step in confi guring your amplifi er is to select a Preset based on the loudspeakers being connected to the amplifi er. You can use a factory preset, and then adjust the parameters as needed, then save the confi guration as a user-defi ned preset. In addition, you can use the "Preset Wizard" on page 16 to create presets from the ground up. When the confi guration is changed, all four channels are automatically muted.
F1: A B C D
F7: ABC D
M ABC M D
Current Configuration
Selected Configuration
Input Mixer
Frequency Range color
Output Configuration
Input number
Sub-woofer
Mid-Frequency
High-Frequency
Low-Frequency Full Range
Frequency Range Color Codes
— Figure 14 —
WARNING!: When the AC Power is on, there is a potential of having dangerous voltage at the output terminals on the rear of the amplifi er. Use caution not to touch these contacts. Turn off the AC Mains disconnect switch prior to making any connections.
IMPORTANT: QSC recommends that you connect jumpers between the output terminals where the terminals are the same points electrically. When confi guring your amplifi er, there are going to be some loudspeaker connections that are noted as being "electrically
the same point". In Figure 15 , all four channels are in parallel with the "electrically the same" terminals jumpered as recommended. In addition, you can connect one loudspeaker to each of the four output channel terminals, and the four loudspeakers are in parallel; in this case you would not need to jumper the terminals. You can connect four loudspeakers to one channel's output terminals (i.e. T1 and T2), and the four loudspeakers are in parallel; in this case you would want to jumper the terminals. In all of the examples below, the
"electrically the same" terminals are shown with jumpers installed.
1. Turn the AC Mains power switch on the back of the amplifi er to on. The amplifi er starts in the Run mode.
2. Press and release the front-panel power button. The button fl ashes red, the amplifi er is in Mute All mode.
3. Select the confi guration appropriate for your loudspeakers, using either Preset Recall, or the Preset Wizard.
The following is a list of confi gurations for 1, 2, 3, and 4-channel outputs. This is not an exhaustive list, but is intended to give you an idea of what is available and how the outputs would be wired.
One-Channel Confi gurations
F9: ABCD
F9: ABCD
ABCD Parallel
M ABCD
The following are electrically the same point
T1+, T3+, T5+, and T7+
T2-, T4-, T6-, and T8-
— Figure 15 —
TD-000367-01-A
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F8: AB+CD
F8: AB+CD
M AB+CD
AB Parallel
Bridged with
CD Parallel
The following are electrically the same point
T1+and T3+
T5- and T7-
— Figure 16 —
Two-Channel Confi gurations
F6: A+B C+D
F6: A+B C+D
M A+B M C+D
A+B Bridged
C+D Bridged
F5: AB C+D
F5: AB C+D
M AB M C+D
F4: AB CD
F4: AB CD
M AB M CD
— Figure 17 —
AB Parallel
C+D Bridged
The following are electrically the same point
T1+ and T3+
T2- and T4-
— Figure 18 —
AB Parallel
CD Parallel
The following are electrically the same point
T1+ and T3+
T5+ and T7+
T2- and T4-
T6- and t8-
— Figure 19 —
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F7: ABC D
F7: ABC D
M ABC
Three-Channel Confi gurations
F3: A+B C D
F3: A+B C D
M A+B M C M D
ABC Parallel
D Single
M D
The following are electrically the same point
T1+, T3+, and T5+
T2-, T4-, and T6-
— Figure 20 —
A+B Bridged
C Single
D Single
— Figure 21 —
F2: AB C D
F2: AB C D
M AB M C M D
AB Parallel
C Single
D Single
The following are electrically the same point
T1+ and T3+
T2- and T4-
— Figure 22 —
Four-Channel Confi guration
F1: A B C D
F1: A B C D
M A M B M C M D
A Single
B Single
C Single
D Single
— Figure 23 —
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Connect the Loudspeakers
WARNING!: When the AC Power is on, there is a potential of having dangerous voltage at the output terminals on the rear of the amplifi er. Use caution to not touch these contacts. Turn off the AC Mains disconnect switch prior to making any connections.
1. Turn the AC Mains power switch, on the back of the amplifi er, to OFF.
2. Connect the loudspeaker wiring to the 8-pin Euro-style connector. Refer to Figure 15 thru Figure 23 . When combining channels, QSC recommends that you connect jumpers between the electrically same output terminals. Refer to Figure 15 and the WARNING above the fi gure.
3. Install the Euro-style connector onto the rear of the amplifi er as shown in Figure 24 .
4. Use a Phillips screwdriver to secure the connector.
AC Power On
— Figure 24 —
After connecting the outputs to the loudspeakers, you may turn the amplifi er on.
1. Make sure the output gain settings for all audio-source devices (CD Players, Mixers, Instruments, etc.) at the lowest output (max attenuation).
2. Turn on all audio sources.
3. Turn the AC Mains power switch on the back of the amplifi er to ON. The amplifi er starts in the state it was in when power was removed.
4. You can now bring up the outputs of your audio sources.
Power Distribution Charts
The following charts show the maximum power output for each channel in each confi guration, and under different loads.
Confi guration
4 CH (A B C D)
3 CH (AB C D)
3 CH (A+B C D)
2 CH (AB CD)
2 CH (AB C+D)
2 CH (A+B C+D)
2 CH Alt (ABC D)
1 CH (ABCD)
1 CH (AB+CD)
8 Load
CXD 4.3 — Total Power: 2500W
4 Load
A B C D
625 625 625 625
A B C D
650 650 650 650
1000
1250
1000
1000
1250
1100
1100
2500
625 625
625 625
1000
1250
1250
625
1200
1150
1200
1200
1150
2000
2100
2370
650
650
1200
1150
1150
650
650
650
— Table 1 —
A
2 Load
B C D
600 600 600 600
1200
625
600
600
600
600
1200
1200
625
1200
625
625
2500
2500
2230
600
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Confi guration
4 CH (A B C D)
3 CH (AB C D)
3 CH (A+B C D)
2 CH (AB CD)
2 CH (AB C+D)
2 CH (A+B C+D)
2 CH Alt (ABC D)
1 CH (ABCD)
1 CH (AB+CD)
CXD 4.5 — Total Power: 5000W
A
8 Load
B C D
1150 1150 1150 1150
A
4 Load
B C D
1250 1250 1250 1250
1200
2250
1200
1200
1150
1150
1200
2250
1150
1150
2250
1150
2250
2250
1250
1250
2250
1150
1250
1250
2250
1150
1150
4200
2250
1150
1150
2400
2300
4250
1150
1250
— Table 2 —
15
A
2 Load
B C D
625 625 625 625
2100
625
625
625
625
625
2100
2100
625
2100
625
625
4100
4200
2250
625
Preset Wizard
NOTE: The power levels shown in this procedure are taken from the CXD4.3 unless indicated otherwise. CXD4.2 will show less power and CXD4.5 will show greater power. For complete details refer to the "Power Distribution Charts" on page 28.
HOME > PRESETS > PRESET WIZARD > ENTER
Step 1 — Adjust Impedance and Power
OUTPUTS
Output: A
SPEAKERS
B
Imped: 8.0
- -
C
SAVE
D
- - -
Power: 625 - - -
Remaining Power Available: 1875 W
Enter Load Profile (Impedance and Power)
- -
Adjust Impedance based on the total loudspeaker load connected to the channel.
Default = 8 Ω
Default = min. for amp
Impedance and Power are dynamically linked for adjustments.
Scroll to select (Imped or Power)
To edit, press
Turn to adjust parameter
To confirm, press
Repeat for remaining output channels
ENTER
ENTER
Possible Output Mode Combinations using the Preset Wizard
A
- - -
B
- - -
C
- - -
D
- - -
AB
- - -
C
- - -
D
- - -
AB
- - -
CD
- - -
A+B
- - -
C
- - -
ABC
- - -
D
- - -
* 25% 25% 25% 25% 50% 25% 25% 50% 50% 50% 25% 25% 50% 50% 75% 25%
Modes: A B = Separate Channels / A+B = Bridge Mode / AB = Parallel Mode
* Precentages are used to represent the power for different amplifier models.
D
- - -
A+B C+D
- - - - -
AB + CD
- - -
100%
— Figure 25 —
ABCD
- - -
100%
Step 2 — Select Output Channel for Speaker Assignment
OUTPUTS
Output:
Imped:
Power:
Spkr:
A
8.0
625
- - - -
SPEAKERS
B
8.0
625
- - - -
C
8.0
625
- - - -
SAVE
D
8.0
625
- - - -
Assign Assign Assign Assign
When you are finished setting the Impedance and Power for each output, continue to scroll to access the SPEAKERS tab.
Loudspeaker assignment is optional, you can assign a loudspeaker to one or more channels, or none at all.
Scroll to select Output channel
To Assign a loudspeaker, press
Continue to Step 3.
ENTER
Step 3 — Select Speaker Type for Channel
OUTPUTS SPEAKERS
Speaker:
Band:
Filter:
Output: A
WL2102 BiLFNS
2-Way LF
80 Hz
ASSIGN
SAVE
TD-000367-01-A
Band and Filter selections are based on the Speaker you select.
You must select a loudspeaker before selecting Band and Filter.
To edit Speaker, press
ENTER
Scroll to select a Speaker model
To confirm, press
Scroll to select (Band, Filter)
ENTER
To edit, press
Turn to adjust parameter
ENTER
To confirm, press
ENTER
Scroll to select ASSIGN
To assign the speaker to the output channel, press
ENTER
16
Step 4 — Save Wizard Preset
OUTPUTS SPEAKERS SAVE
User Preset Number: 21
New Preset Name
C o n f i g A
SAVE
Edit preset number or press EXIT
When you have finished selecting loudspeakers, continue to scroll to access the SAVE tab.
Scroll to the Save screen
To edit User Preset number, press
ENTER
Turn to adjust parameter
To confirm, press
ENTER
Create New Preset from an Existing Preset
To create a preset from an existing preset, recall the preset with the desired output confi guration, modify the Input parameters, Output parameters, then save the preset. In addition, you can save the preset as you are going thru the creation process.
Recall a Preset
A Preset includes the output confi guration, input parameters, and loudspeaker profi les (DSP, load, and assignments). There are 20 factory presets that can be recalled, but not overwritten. Factory presets F1: Confi g thru F9: Confi g contain output confi gurations only. Factory presets F10: thru F20: contain the output confi gurations and basic DSP for the confi gurations. There are 50 user presets that can be recalled and overwritten.
HOME > PRESETS > PRESET RECALL > ENTER
Step 1 — Select Preset
F1: A B C D
F1: A B C D
Indicates more Presets
M A M B M C M D
Scroll to desired Preset
20 Factory, 50 User-defined
Input Sub LF
Step 2 — Confi rm Selection
F1: A B C D
F18: 3-Way
MF HF Full
M A+B M C M D
Press ENTER to confirm selection
To select the Preset configuration, press
ENTER
To confirm the selection, press
ENTER
The message at the bottom changes to: “Recalling Preset now...”
You may hear relays clicking
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Set up the Inputs
NOTE: Changes made to input levels are in real time.
HOME > INPUTS > INPUT SENS > ENTER
Step 1 — Select Input Sensitivity
F1: A B C D
Inputs > Input Sens
Input
1
INPUT SENS
+14 dBu
HOME > INPUTS > INPUT GAIN > ENTER
Step 2 — Set Input Gain
F1: A B C D
Inputs > Input Gain
Press ENTER to confirm
Input
1
INPUT GAIN
-11.8 dB
Press ENTER to confirm
Scroll to select (+14 or +4 dBu)
(The background turns to green.)
To confirm selection, press
ENTER
To move to the next input, press
SEL
Repeat procedure for remaining input channels.
Scroll to select (-100 thru 20 dB)
(0.1 dB increments)
To confirm selection, press
ENTER
To move to the next input, press
Repeat procedure for remaining input channels.
SEL
Set up the Outputs
NOTE: Changes made to outputs are in real time.
INPUTS
Mixer
The CXD amplifi ers are equipped with an internal mixer that allows you to adjust the signals from each input to each of the four outputs. Figure 26 is a diagram of the Mixer for Output Channel A.
• The default setting for the Input Gain is 0.0 dB, and is set in the
INPUTS section.
• Each output channel has four inputs, each controlled by a Mixer Gain.
• The Input Gain and Mixer Gain are cumulative. For example, if you set the
Input Gain to +2.0 dB, and the Mixer Gain to -5.0 dB, the resulting output is -3.0 dB
Input 1
0.0 dB
Input 2
0.0 dB
Input 3
0.0 dB
As a default one channel is mixed to each output: 1 - A, 2 - B, 3 - C, 4 - D, all other input channels are set to -100. Adjusting an Input Gain changes that channel's input to the mixers of all channels. Changing a Mixer Gain affects only that input for the selected output channel.
Input 4
0.0 dB
0.0 dB
Output Mixers
B
C
D
-100 dB
Output Mixers
B
C
D
-100 dB
Output Mixers
B
C
D
-100 dB
Output Mixers
B
C
D
— Figure 26 —
OUTPUT
MIXER A
Output
A
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HOME > OUTPUTS > MIXER > ENTER
Step 1 — Set Mixer Gains
F1: A B C D
Output
A
Adjust the Mixer Gain for the selected Input
To confirm, press
ENTER
Scroll to remaining Inputs and repeat
After confirming all settings, press
EXIT
To move to the next output, press
SEL
MIXER
Input 1
4.2
Input 2
-100.0
Input 3
2.7
Input 4
-100.0
Mode Select
HOME > OUTPUTS > MODE > ENTER
Step 2 — Select the Output Mode
F1: A B C D
Outputs > Mode
MODE SELECT
Low-Z, 70V, 100V
Output
A
Mode:
Low-Z
Press ENTER to confirm
Scroll to select Low-Z, 100V, or 70V
To confirm selection, press
ENTER
Loudspeaker Processing
The Speaker Processing section allows you to make adjustments to the Crossover, EQ, Delay, Limiter, and QSC Array details for each output channel.
In addition, you can load a pre-defi ned loudspeaker then make any adjustments needed, and save the changes as a user-defi ned loudspeaker.
Depending on the loudspeaker selection, various parameters are not available for adjustment. When you make adjustments, you are making them in real time. If audio is passed while making changes, it is affected by the change.
The following instructions are not all in menu order, and all are optional. Repeat the following procedure for each output channel as necessary.
Load Speaker Profi le
A loudspeaker profi le includes all the DSP and loudspeaker characteristics available in the SPKR PROC section. When you LOAD a loudspeaker, you are loading all of the DSP and characteristics of that loudspeaker. You can start by loading a loudspeaker and then make modifi cations and save your new profi le, or you can build the profi le without loading a loudspeaker, and then save it as a new profi le. If you load a QSC loudspeaker, the amplifi er is set for that specifi c loudspeaker and some parameters may be locked out because they are set to their optimal value by the Intrinsic Correction
Calculator, and should not be adjusted. The CXD comes with a number of supported loudspeakers from other manufacturers. Refer to the list under
"Supported Loudspeakers" on page 27 . There may be additions to this list in the futrue that can be loaded with fi rmware updates.
NOTE: If you make changes to any of the loudspeaker processing parameters, and then LOAD a loudspeaker profi le, all the changes you made are overwritten.
TD-000367-01-A
19
HOME > OUTPUTS > SPKR PROC > LOAD SPKR > ENTER
Step 1 — Load an Existing Loudspeaker for the Selected Output
ABOUT
Speaker:
Band:
Filter:
SPEAKERS
Output: A
WL2102 BiLFNS
2-Way LF
80 Hz
CONFIRM
LOAD
To edit Speaker, press
ENTER
Scroll to select Speaker model Band and Filter selections are displayed and constrained based on the loudspeaker.
To confirm, press
ENTER
Scroll to (Band, Filter)
To adjust, press
ENTER
Adjust selected parameter
To confirm, press
ENTER
Scroll to LOAD
To Load the speaker profile to the selected output, press
ENTER
Crossover
HOME > OUTPUTS > SPKR PROC > CROSSOVER > HIGH-PASS (or LOW-PASS) > ENTER
Step 1 — Set the Crossover High- and/or Low-pass fi lters
F1: A B C D
Output
A
20 dB
Freq: 20 - 20 kHz
Type:
• Butterworth
• Linkwitz-Riley,
• Bessel-Thomson
HPF
Freq
70.0
Type
BWrth
-60 dB
Slope
24dB/oct
Slope:
6dB to 48dB/oct depending on Type
HOME > OUTPUTS > SPKR PROC > CROSSOVER > GAIN/POL > GAIN > ENTER
Step 2 — Set the Crossover Gain and Polarity
F1: A B C D
Output
A
20 dB
+
Gain -100 to +20 dB
–
-60 dB Polarity + or -
Gn/Pol
Gain
-5.5 dB
Polarity
POL +
Scroll to select (Freq, Type, Slope)
To edit, press
ENTER
Turn to adjust parameter
To confirm, press
ENTER
To exit, press
EXIT
Scroll to select (Gain or Polarity)
To edit, press
ENTER
Turn to adjust parameter
To confirm, press
ENTER
To exit, press
EXIT
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EQ
HOME > OUTPUTS > SPKR PROC > PEQ > BAND 1, 2, 3, 4, or 5 > ENTER
The graph is a composite of all fi ve bands. Each band has a full range of 20 Hz to 20 kHz.
Step 1 — Set the EQ
F1: A B C D
Output
A
20 dB
Type: Bypass, Parametric, Low Shelf,
High Shelf (Default Bypass)
Gain: -40 to +20 dB (Default 0.00)
Band 1
Type
Parametrc
Gain
-35 dB
Freq
100
-60 dB
BW
.01
Freq: 20 to 20kHz (Band 1 Def 100 Hz)
(Band 2 Def 500 Hz)
(Band 3 Def 1 kHz)
(Band 4 Def 2.5 kHz)
(Band 5 Def 5 kHz)
BW: 0.01 to 3.00 Octive
(Default 1.00 Oct.)
Delay
HOME > OUTPUTS > SPKR PROC > DELAY > ENTER
Step 1 — Set the Output Delay Time
F1: A B C D
Outputs > Spkr Proc > Delay
DELAY TIME
14.0 ms
Bypassed
Output
A Delay:
0.0 ms to
50.00 ms
1.0 ms increments
Bypass:
Bypassed or
Enabled
Press ENTER to confirm
Limiter
HOME > OUTPUTS > SPKR PROC > LIMITER > ENTER > ENTER
Step 1 — Set the Limiter Mode
F1: A B C D
Output
A
AUTO
Type
Med
SpkrPwr
200W
SpkrImp
8.0
Scroll to select
(Type, Gain, Freq, BW)
To edit, press
ENTER
Turn to adjust parameter
To confirm, press
ENTER
To exit, press
EXIT
Scroll to (Delay Time or Bypass)
To edit, press
ENTER
Turn to adjust parameter
To confirm, press
ENTER
To exit, press
EXIT
To edit the Limiter mode, press
ENTER
Turn to select the mode for the Limiter
AUTO ADV OFF
To confirm setting, press
ENTER
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HOME > OUTPUTS > SPKR PROC > LIMITER > AUTO
NOTE: SpkrPwr maximum output depends on the amplifi er and the output confi guration you select. The maximum for separate channels is 1250 W, a single combined channel (ABCD or AB+CD) can be up to 5000 W depending on the amplifi er.
Step 2 — Set the AUTO Mode Parameters
F1: A B C D
Output
A
Type:
Aggressive
Medium
Mild
Scroll to select (Type, SpkrPwr, SpkrImp)
To edit, press
ENTER
SpkrPwr:
10.0 W to 1250 KW
Turn to adjust parameter
To confirm, press
ENTER
AUTO
Type
Med
SpkrPwr
200W
SpkrImp
8.0
SpkrImpd:
2.0 Ω to 32.0 Ω
To exit, press
EXIT
Type - the Auto Limiter Type is a protection level and its values are, Mild, Medium and Aggressive. This Type parameter, along with the Power Rating and Impedance drive an algorithm designed to maximize the performance of your loudspeakers. They set the RMS and Peak threshold values as well as their attack and release setting.
SpkrPwr - if a single speaker is being driven, the SpkrPwr should be the continuous power rating of that loudspeaker. If multiple speakers are being driven this value should be the combined power rating for the load.
SpkrImp - if a single speaker is being driven, the SpkrImp should be the nominal impedance of that loudspeaker. If multiple speakers are being driven this value should be the combined impedance for the load.
HOME > OUTPUTS > SPKR PROC > LIMITER > ADV
Step 3 — Set the ADV Mode Parameters
F1: A B C D
Output
A
RMSThr: 3.0V to 100.0V
PkThr: 5.0V to 155.0V
PkAttk: 0.10 ms to 20.0 ms
PkRel: 1.00 ms to 1.0 s
RMSAttk: 0.05 s to 10.0 s
RMSRel: 1.0 s to 60.0 s
Scroll to select (RMSThr, PkThr,
PkAttk, PkRel, RMSAttk, & RMSRel)
To edit, press
Turn to adjust parameter
ENTER
To confirm, press
ENTER
ADV
RMSThr
100.0V
PkThr
155.0V
Thr = Threshold, Pk = Peak, Attk = Attack, Rel = Release
To exit, press
EXIT
Array Correction
NOTE: You must have a QSC line array loaded in order to access the Array Correction parameters.
HOME > OUTPUTS > SPKR PROC > ARRAY > ENTER
Step 1 — Set Splay Angle and Number of Boxes in the Array
F1: A B C D
Output
A
Splay Angle: Total cumlative angle of the array.
Array Length: Total number of boxes in the array.
AC
Angle
15.0
Boxes #
4
Angle:
0.0˚ to 90.0˚
Boxes #:
0 to 24
Scroll to select (Angle or Boxes#)
To edit, press
ENTER
Turn to adjust parameter
To confirm, press
ENTER
To exit, press
EXIT
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HOME > OUTPUTS > SPKR PROC > SAVE SPKR > ENTER
When you Save a speaker profi le, you are saving all of the Output settings currently active for the channel. The new profi le you save does not need to be Loaded, it is already active.
Step 1 — Save a Loudspeaker with Custom Load Profi le
ABOUT SPEAKERS SAVE
Scroll to select (Band,
Nominal Imped, Power Rating)
To edit, press
ENTER
Output Data: AB + CD
Band:
Nominal Imped:
2-Way LF
16.0
Power Rating: 1000
Nominal Impedance and
Power Rating are the nominal settings for a single loudspeaker of this type.
Turn to adjust parameter
To confirm, press
ENTER
After confirming settings, Scroll to SAVE
Enter Speaker Info
Step 2 — Name the Loudspeaker Profi le
ABOUT SPEAKERS
M y
Speaker Profile Name
S p k r
SAVE
Press ENTER to edit name
SAVE T o add Speaker Profile Name, press
ENTER
Indicates editing
Indicates “Speaker
Profile Name” is selected
Scroll to desired letter position
Up to 21 characters
A - Z / a - z / 0 - 9 /
_ / - / space
Turn to select desired character
When finished, scroll to SAVE press
ENTER press
ENTER press
ENTER
Save the Preset
After modifying the Inputs and Outputs for all channels, save the current settings as one of the 50 user-defi ned presets (U1: thru U50:). Each of the user presets, by default, is the same as factory preset F1: A B C D, so when you save the preset you are "overwriting" the preset currently in that numbered position. If you started by recalling a factory preset, you must use the SAVE AS feature. If you started with a user-defi ned preset, you can overwrite the preset you started with using the SAVE feature, or use the SAVE AS feature to overwrite a different user preset.
HOME > PRESETS > PRESET SAVE> SAVE AS > ENTER
Step 1 — Save a New Preset - Select and Edit Preset Number
U1: A B C D
To edit User Preset number, press
ENTER
User Preset Number: 21
New Preset Name
C o n f i g A
Turn to select desired number (1 thru 50)
SAVE
Edit preset number or press EXIT
To confirm User Preset Number, press
ENTER
TD-000367-01-A
23
Step 2 — Name the Preset
U1: A B C D
User Preset Number: 21
New Preset Name
C o n f i g X A
SAVE
Press ENTER to edit preset name
Step 3 — Save Preset
U1: A B C D
User Preset Number: 21
New Preset Name
C o n f i g X A
Indicates editing
Indicates “New
Preset Name” is selected
Scroll to New Preset Name
Scroll to desired letter position
Up to 21 characters
A - Z / a - z / 0 - 9 /
_ / - / space
Turn to select desired character press
ENTER press
ENTER press
ENTER
When you are finished naming, press
EXIT
Scroll to SAVE
Press
ENTER
To confirm Save, press
ENTER
Press ENTER to save preset
HOME > PRESETS > PRESET SAVE > SAVE > ENTER
Use this procedure when you are saving the preset by overwriting the currently active user preset. After you use the SAVE AS feature to save the preset you are working on, it then becomes the currently active preset, and you can use the SAVE feature to save as you work on the preset.
Step 1 — Overwrite Preset
U1: A B C D
To save, press
ENTER
SAVE To exit without saving, press
EXIT
To confirm the save, press
ENTER
Press ENTER to save preset
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Utilities
The Utilities section provides the following amplifi er information and functionality:
HOME > UTILITIES > STATUS > ENTER
Check the Amplifi er's Health
UTILITY - STATUS
Amp Total Run Time: 22:37:48 Hrs
Temperature: Hardware: V12
Firmware: V1.0.22
DC Status: OK
VRail 1: 148V
VRail 2: -150V
CH1 & CH3: 27C
CH2 & CH3: 29C
Power Supply: 24C
Amp Total Run Time:
HH:MM:SS
Hardware version
Firmware version
update thru Amplifier Navigator
DC Status:
VRail 1 = +147VDC +/- 5V typical
VRail 2 = -147VDC +/- 5V typical
Temperature (CXD 4.3 & 4.5)
Thermal Limiting starts at 69ºC
Thermal Shutdown at 80ºC
HOME > UTILITIES > AMP ID > ENTER
Name the Amplifi er
UTILITY - AMP ID
Serial #: 123abc m y
Amp ID: my amp ID
Change Amp ID to: a m p I D
CONFIRM
Indicates editing
To edit “Change Amp ID to:”, press
ENTER
Scroll to desired letter position press
ENTER
Indicates “New
Preset Name” is selected
Up to 21 characters
A - Z / a - z / 0 - 9 /
_ / - / space
Turn to select desired character press
ENTER
When you are finished, press
EXIT
Scroll to CONFIRM
Press
ENTER
HOME > UTILITIES > PASSWORD > ENTER
Add or Change the Password
UTILITY - CHANGE PASSWORD
Current Password:
Q S C
To enter “Current Password:”, press
With the first letter position selected, press
ENTER
ENTER
M Y
New Password: p a s
CONFIRM s w o r
Turn to select desired character press
ENTER
When you complete the current password, the “New Password:” is automatically selected
Repeat the procedure for the “New Password:”
Scroll to CONFIRM
The default password for all amplifiers is QSC – all uppercase.
The password can be up to 10 characters long, and contain, A — Z a — z 0 — 9 _ - space Press
ENTER
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HOME > UTILITIES > LOCKOUT > ENTER
All controls are locked except the Mute buttons, the front-panel and rear power buttons, the Enter button and Master Control knob to unlock the amplifi er.
Enter Password to Lock or Unlock
UTILITY - LOCKOUT With “Enter Password:” selected, press
ENTER m y
Enter Password: p a s s w o r
With the first letter position selected press
ENTER
CONFIRM
Scroll to desired character press
ENTER
When you complete the password correctly,
CONFIRM is automatically selected.
To lock or unlock the amplifier, press
ENTER
GPIO Connections
Step 1 — Connect 3-pin and 2-pin Euro-style Connectors on the Back Panel of the Amplifi er
Heartbeat
GPO
Heartbeat — 1 Hz square wave @ 3.3 V output
GPO — Functionality is to be added.
GPI
GPI — Standard logic trigger with 1.5 V threshold.
Short pin 1 to ground to put amplifi er in Standby mode. GP Input must be Enabled.
(Switch is not included.)
HOME > UTILITIES > GPIO > ENTER
Step 2 — Enable or Disable the GP Input Feature
UTILITY - GPIO DISABLED Current status Scroll to Enable or Disable
To confirm your selection, Press
ENTER
GP INPUT: Enable
Disable
Enable button selected
Disable button not selected
After pressing ENTER, the LCD returns to the HOME page.
TD-000367-01-A
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Supported Loudspeakers
QSC Audio
AP-5102
AP-5122
AP-5122m FOH
AP-5122m MON
AP-5152
GP118-sw
GP212-sw
GP218-sw
S8T
S10T
S12
WL118-sw
WL-2102
WL212-sw
WL218-sw
B52
LX1515V3
LX18V3
MX1515
MX18S
Cerwin-Vega (CV)
EL-36C
TS-42
EV
ELX112
ELX115
ELX215
TX2152
TX2181
JBL
JRX112M
JRX115
JRX118S
JRX125
MRX515
MRX518S
MRX525
MRX528S
PRX415M
PRX425
SRX712M
SRX715
SRX718S
SRX722
SRX725
SRX728S
SRX738
VRX932LA
Peavy
Yahama
BR12
BR12M
BR15
C115V
S115V
S215V
SM15V
SW218V
PV215
PVX12
PVX15
SP218
SP4
PR10
PR12
PR15
PV115
PV118
PV12M
TD-000367-01-A
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Specifi cations
CXD4.2
CXD4.3
CXD4.5
4 Ch. Continuous 1
8
4
2
2 Ch. Continuous 1
8
4
2
1 Ch. Continuous 1
8
4
2
1
Typical Distortion
8
4
Maximum Distortion 4
- 8
Frequency response (8 )
400 Watts
400 Watts
325 Watts
800 Watts
800 Watts
650 Watts
1600 Watts
1600 Watts
1600 Watts
1600 Watts
625 Watts
625 Watts
625 Watts
1250 Watts
1200 Watts
1200 Watts
2500 Watts
2500 Watts
2500 Watts
2500 Watts
1150 Watts
1250 Watts
625 Watts
2250 Watts
2250 Watts
2100 Watts
4200 Watts
4200 Watts
4250 Watts
3700 Watts
0.01 - 0.03%
0.03 - 0.06%
1.0%
20 Hz - 15 kHz +/- 0.2 dB
20 Hz - 20 kHz +0.2 dB / -0.7 dB
0.01 - 0.03%
0.03 - 0.06%
1.0%
20 Hz - 15 kHz +/- 0.2 dB
20 Hz - 20 kHz +0.2 dB / -0.7 dB
0.01 - 0.03%
0.03 - 0.06%
1.0%
20 Hz - 15 kHz +/- 0.2 dB
20 Hz - 20 kHz +0.2 dB / -0.7 dB
Noise
Unweighted Output Unmuted
Weighted Output Muted
Gain (1.2V setting)
Damping factor
Input impedance
Maximum input level
(3.9V setting)
(1.2V setting)
Controls and indicators (front)
-101 dB
-109 dB
34.0 dB
>150
>10k, balanced or unbalanced
-101 dB
-109 dB
38.4 dB
>150
>10k, balanced or unbalanced
-101 dB
-109 dB
38.4 dB
>150
>10k, balanced or unbalanced
12.28V (+24 dBu)
3.88V (+14 dBu)
12.28V (+24 dBu)
3.88V (+14 dBu)
12.28V (+24 dBu)
3.88V (+14 dBu)
Power • Channel MUTE Buttons • Channel SELECT Buttons • Channel Input Signal and CLIP LED Indicators • Channel Output and
LIMIT LED Meters • HOME, ENTER, EXIT, GAIN Navigation Buttons • Control Knob
AC Power Disconnect AC Power Disconnect AC Power Disconnect Controls and indicators (rear)
Input connectors
Line Input
GPI Input
Output connectors
Loudspeaker Output
GPIO Output
Amplifi er and load protection
AC Power Input
Dimensions (HWD)
3-pin Euro-style
2-pin Euro-style 3.5 mm
3-pin Euro-style
2-pin Euro-style 3.5 mm
3-pin Euro-style
2-pin Euro-style 3.5 mm
8-pin Euro-style
3-pin Euro-style 3.5 mm
8-pin Euro-style
3-pin Euro-style 3.5 mm
8-pin Euro-style
3-pin Euro-style 3.5 mm
Short circuit, open circuit, thermal, RF protection. On/Off muting, DC fault shutdown, active inrush limiting, input current limiting
Universal Power Supply 100 - 240 VAC, 50 - 60 Hz
3.5” x 19” x 12” (89 x 482 x 305 mm) 3.5” x 19” x 16” (89 x 482 x 406 mm) 3.5” x 19” x 16” (89 x 482mm x 406mm)
Weight, Net / Shipping 18.5 lb (8.4 kg) / 22 lb (10.0 kg)
1 - 1.0 kHz sine wave, 1% THD, 1 channel driven
21.0 lb (9.5 kg) / 25 lb (11.3 kg) 22.0 lb (10.0 kg) / 26 lb (11.8 kg)
TD-000367-01-A
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Heat Loss Charts
Heat losses are the thermal emissions from an amplifi er while it is operating. It comes from dissipated waste power—i.e., real AC power in minus audio power out. Measurements are provided for various loads at idle, 1/8 of average full power, 1/3 of average full power, and full power, with all channels driven simultaneously. For typical usage, use the idle and 1/8 power fi gures. This data is measured from representative samples; due to production tolerances, actual heat emissions may vary slightly from one unit to another. Bridged mono into 8 ohms is equivalent to 4 ohms per channel; into 4 ohms is equivalent to 2 ohms per channel.
BTU/hr kcal/hr
Idle
CXD 4.3
CXD 4.5
225
286
57
72
Load per Channel
BTU/hr
8 Ω kcal/hr BTU/hr
4 Ω kcal/hr BTU/hr
2 Ω kcal/hr
25V-70V-100V
BTU/hr kcal/hr
1/8th Power
CXD 4.3
CXD 4.5
1/3rd Power
CXD 4.3
CXD 4.5
Full Power
CXD 4.3
CXD 4.5
684
811
983
881
2498
3116
172
204
248
222
629
785
794
1144
1261
1708
2925
5318
200
288
318
430
737
1340
1040
1124
1869
1737
4198
4208
262
283
471
438
1058
1060
794
1144
1261
1708
2925
5318
200
288
318
430
737
1340
Idle
Thermal loss at idle or with very low signal level.
1/8 Power
Thermal loss at 1/8 of full power is measured with pink noise. It approximates operating with music or voice with light clipping and represents the amplifi er's typical "clean" maximum level, without audible clipping. Use these fi gures for typical maximum level operation.
1/3 Power
Thermal loss at 1/3 of full power is measured with pink noise. It approximates operating with music or voice with very heavy clipping and a very compressed dynamic range.
Full Power
Thermal loss at full power is measured with a 1 kHz sine wave. However, it does not represent any real-world operating condition.
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Mailing Address:
QSC Audio Products, LLC
1675 MacArthur Boulevard
Costa Mesa, CA 92626-1468 USA
Telephone Numbers:
Main Number: (714) 754-6175
Sales & Marketing: (714) 957-7100 or toll free (USA only) (800) 854-4079
Customer Service: (714) 957-7150 or toll free (USA only) (800) 772-2834
Facsimile Numbers:
Sales & Marketing FAX: (714) 754-6174
Customer Service FAX: (714) 754-6173
World Wide Web: www.qsc.com
E-mail: [email protected]
© 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 other countries.
All other trademarks are the property of their respective owners. http://patents.qsc.com.
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