Christie Vive Audio
CDA2/CDA3 Amplifiers
User Manual
020-100355-02
Christie Vive Audio
CDA2/CDA3 Amplifiers
User Manual
020-100355-02
NOTICES
COPYRIGHT AND TRADEMARKS
Copyright © 2013 Christie Digital Systems USA Inc. All rights reserved.
All brand names and product names are trademarks, registered trademarks or trade names of their respective holders.
GENERAL
Every effort has been made to ensure accuracy, however in some cases changes in the products or availability could occur which may not be
reflected in this document. Christie reserves the right to make changes to specifications at any time without notice. Performance
specifications are typical, but may vary depending on conditions beyond Christie's control such as maintenance of the product in proper
working conditions. Performance specifications are based on information available at the time of printing. Christie makes no warranty of any
kind with regard to this material, including, but not limited to, implied warranties of fitness for a particular purpose. Christie will not be liable
for errors contained herein or for incidental or consequential damages in connection with the performance or use of this material.Canadian
manufacturing facility is ISO 9001 and 14001 certified.
WARRANTY
Products are warranted under Christie’s standard limited warranty, the complete details of which are available by contacting your Christie
dealer or Christie. In addition to the other limitations that may be specified in Christie’s standard limited warranty and, to the extent relevant
or applicable to your product, the warranty does not cover:
a) Problems or damage occurring during shipment, in either direction.
b) Projector lamps (See Christie’s separate lamp program policy).
c) Problems or damage caused by use of a projector lamp beyond the recommended lamp life, or use of a lamp other than a Christie lamp supplied by
Christie or an authorized distributor of Christie lamps.
d) Problems or damage caused by combination of a product with non-Christie equipment, such as distribution systems, cameras, DVD players, etc., or use
of a product with any non-Christie interface device.
e) Problems or damage caused by the use of any lamp, replacement part or component purchased or obtained from an unauthorized distributor of Christie
lamps, replacement parts or components including, without limitation, any distributor offering Christie lamps, replacement parts or components through
the internet (confirmation of authorized distributors may be obtained from Christie).
f) Problems or damage caused by misuse, improper power source, accident, fire, flood, lightening, earthquake or other natural disaster.
g) Problems or damage caused by improper installation/alignment, or by equipment modification, if by other than Christie service personnel or a Christie
authorized repair service provider.
h) Problems or damage caused by use of a product on a motion platform or other movable device where such product has not been designed, modified or
approved by Christie for such use.
i) Problems or damage caused by use of a projector in the presence of an oil-based fog machine or laser-based lighting that is unrelated to the projector.
j) For LCD projectors, the warranty period specified in the warranty applies only where the LCD projector is in “normal use” which means the LCD
projector is not used more than 8 hours a day, 5 days a week.
k) Except where the product is designed for outdoor use, problems or damage caused by use of the product outdoors unless such product is protected
from precipitation or other adverse weather or environmental conditions and the ambient temperature is within the recommended ambient temperature
set forth in the specifications for such product.
l) Image retention on LCD flat panels.
m) Defects caused by normal wear and tear or otherwise due to normal aging of a product.
The warranty does not apply to any product where the serial number has been removed or obliterated. The warranty also does not apply to
any product sold by a reseller to an end user outside of the country where the reseller is located unless (i) Christie has an office in the country
where the end user is located or (ii) the required international warranty fee has been paid.
The warranty does not obligate Christie to provide any on site warranty service at the product site location.
PREVENTATIVE MAINTENANCE
Preventative maintenance is an important part of the continued and proper operation of your product. Please see the Maintenance section
for specific maintenance items as they relate to your product. Failure to perform maintenance as required, and in accordance with the
maintenance schedule specified by Christie, will void the warranty.
REGULATORY (if applicable)
The product 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 product is operated in a commercial
environment. The product 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 the product in a residential area is likely to cause
harmful interference in which case the user will be required to correct the interference at the user’s own expense.
CAN ICES-3 (A) / NMB-3 (A)
이 기기는 업무용(A급)으로 전자파적합등록을 한 기기이오니 판매자 또는 사용자는 이점을 주의하시기 바라며, 가정 외의 지역에서 사용하는 것을
목적으로 합니다.
ENVIRONMENTAL
The product is designed and manufactured with high-quality materials and components that can be recycled and reused. This symbol
means that electrical and electronic equipment, at their end-of-life, should be disposed of separately from regular waste. Please
dispose of the product appropriately and according to local regulations. In the European Union, there are separate collection systems
for used electrical and electronic products. Please help us to conserve the environment we live in!
Table of Contents
Important Safety Information ....................................................................................... 1
Introduction .................................................................................................................... 3
Overview ...........................................................................................................................................................................3
Features ............................................................................................................................................................................3
What’s In the Box? ............................................................................................................................................................4
Controls and Indicators .....................................................................................................................................................4
Front Panel ...................................................................................................................................................................4
Rear Panel ....................................................................................................................................................................5
Installation ...................................................................................................................... 7
Install the CDA2 or CDA3 ..................................................................................................................................................7
Input Connections.............................................................................................................................................................7
Stereo Mode Connections ...........................................................................................................................................8
Parallel Mode Connections ...........................................................................................................................................8
Output Connections ..........................................................................................................................................................8
Stereo Mode Connections ...........................................................................................................................................9
Biamp Mode Connections ...........................................................................................................................................9
Bridge Mode Connections ......................................................................................................................................... 10
Operation ........................................................................................................................................................................ 10
Turn the Power On ...................................................................................................................................................... 10
Turn the Power Off ...................................................................................................................................................... 11
Troubleshooting........................................................................................................... 13
Specifications .............................................................................................................. 15
Audio .............................................................................................................................................................................. 15
Connections.................................................................................................................................................................... 15
Power ............................................................................................................................................................................. 16
Block Diagram ................................................................................................................................................................ 17
Physical .......................................................................................................................................................................... 17
Christie Vive Audio CDA2/CDA3 Amplifiers User Manual
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i
Important Safety Information
Read this information thoroughly and completely before installing or operating Christie Vive Audio CDA2/CDA3
Professional Power Amplifiers.
•
Read these instructions.
•
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 openings. Install in accordance with the manufacturer’s instructions.
•
Do not install near any heat sources such as radiators, heat registers, stoves, or other devices
(including amplifiers) 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 fit
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 from where they exit the apparatus).
•
Only use attachments or accessories specified by the manufacturer.
•
Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the
apparatus. When a cart is used, use caution when moving the cart and apparatus combination to avoid
injury from tip-over.
•
Unplug this apparatus during lightning storms or when unused for long periods of time.
•
To reduce the risk of electric shock, disconnect the AC power cord to completely remove power from
the unit before repair or maintenance.
•
All servicing must be completed by qualified 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.
•
Changes or modifications to this unit not expressly approved by the party responsible for compliance
could void the user’s authority to operate the equipment.
•
Provide rear support if this product is mounted in an equipment rack.
•
Do not install the amplifier near water where the electrical components can be exposed to moisture. Do
not place objects containing liquids, such as vases, on the product.
•
Provide proper ventilation. Allow 31 cm (12 in.) clearance from the nearest combustible surface. Make
sure that vents are not blocked and that air can flow freely through the unit.
•
Make sure that vents are not blocked and that air can flow freely through the unit.
Christie Vive Audio CDA2/CDA3 Amplifiers User Manual
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1
•
The power switch does not break both sides of the primary mains. Hazardous energy can be present
inside the chassis when the power switch is in the off position. The mains plug or appliance coupler is
used as the disconnect device. The disconnect device shall remain readily operable.
•
Exposure to extremely high noise levels may cause permanent hearing loss. Individuals vary
considerably in their susceptibility to noise-induced hearing loss, but nearly everyone will lose some
hearing if exposed to sufficiently intense noise for a sufficient time. These are the permissible noise
level exposures specified by the United States Occupational Safety and Health Administration (OSHA):
Duration (Consecutive)
Sound Level (dBA), Slow Response
8 hrs
90
6 hrs
92
4 hrs
95
3 hrs
97
2 hrs
100
1.5 hrs
102
1 hr
105
30 min
110
≤15 min
115
According to the OSHA, any exposure in excess of the above permissible limits could result in some
hearing loss. Earplugs or protectors to the ear canals or over the ears must be worn when operating
this amplification system to prevent permanent hearing loss, if exposure is in excess of the described
limits.
TECHNICAL SUPPORT
Contact your dealer or technical support for questions relating to unclear information, malfunctions, or product repairs.
Americas
Email: tech-support@christiedigital.com
Phone:
• Canada and USA: +1-800-221-8025
• Chile: 519-744-8005
•
•
•
•
•
•
•
•
•
2
Europe, Middle East, and Africa
Email: techsupport-emea@christiedigital.com
Phone:
Russia: +7 (495) 930 8961
Eastern Europe: +36 (0)1 47 48 100
France: +33 (0) 1 41 21 44 10
Germany: +49 2161 56620 22
Italy: +39 (0) 2 9902 1161
Africa: +27 (0) 11 510 0094
Spain: +34 91 633 9990
Middle East: +971 (0) 4 320 6688
United Kingdom: +44(0) 118 977 8111
Asia Pacific
Email: tech-asia@christiedigital.com
Phone:
• Australia: +61 (0) 7 3624 48888
• China: +86 10 6561 0240
• India: +91 (080) 6708 9999
• Japan: 81-3-3599-7481
• South Korea: +82 2 702 1601
• Singapore: +65 6877-8737
Christie Vive Audio CDA2/CDA3 Amplifiers User Manual
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Introduction
This user manual provides data about the Christie Vive Audio CDA2/CDA3 Professional Power Amplifiers
controls, installation, and specifications.
Overview
Christie Vive Audio CDA2/CDA3 Professional Power Amplifiers utilize an advanced design that reduces the
weight of the amplifier significantly while increasing output power, reliability, and thermal efficiency.
Christie Vive Audio CDA2/CDA3 Professional Power Amplifiers are designed with a resonant switch- mode
power supply and a high-speed class D topology that yields superior audio resolution and efficiency.
Advanced technology and extensive protection circuitry allow operation with greater efficiency into difficult
loads and power conditions. The ACL (Automatic Clip Limiting) circuitry provides trouble-free operation into
loads as low as 2 ohms. ACL protects loudspeaker drivers and ensures that sonic integrity is maintained,
even in extreme overload conditions. The CDA’s high- efficiency design allows the amplifier to operate at very
low temperatures, and does not require massive heat sinks for cooling.
Features
•
Two channel-independent, fourth order Linkwitz-Riley crossovers
•
Automatic Clip Limiting (ACL) protection
•
Revolutionary CDA Class-D power regulation topology
•
Detented input controls
•
Combination XLR - 6.3 mm (1/4 in.) inputs
•
Twist-lock connector outputs
•
Ultra-lightweight
•
4-pole connection of channel A output for simplified speaker bi-amplification
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3
What’s In the Box?
Part Number
Quantity
Description
1
Christie Vive Audio CDA2 Professional Amplifier 100V
-or-
145-005106-XX
Christie Vive Audio CDA2 Professional Amplifier 120V
-or-
145-001102-XX
Christie Vive Audio CDA2 Professional Amplifier 230V
-or-
145-009100-01
Christie Vive Audio CDA3 Professional Amplifier 100V
-or-
145-006107-01
Christie Vive Audio CDA3 Professional Amplifier 120V
-or-
145-002103-01
1
Christie Vive Audio CDA3 Professional Amplifier 230V
145-010102-01
Power Cord
The included power cord
is specific for each
region. Please check the
box to ensure you have
the correct one.
Controls and Indicators
This section provides an overview of the Christie Vive Audio CDA2/CDA3 Professional Power Amplifiers
components.
Front Panel
4
Letter
Component
Description
A
Input Gain Control
Adjusts the gain for their respective amplifier channel (Ch.A or Ch.B) in all
modes. The recommended nominal setting is -10dB.
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B
Indicators
Indicates the operating status of each of the channels and warns of possible
malfunction. There are 5 indicators for each channel:
•
ACL (automatic clip limiting) - indicates clipping. If the light is flashing
quickly and intermittently, the channel is at the clip threshold. Gain
reduction is automatically employed to prevent severely clipped
waveforms from reaching the loudspeakers.
•
SIG (signal) - indicates that an output signal of 4 volts RMS or more (0.1
volt or more at the input with 0 dB attenuation and standard x 40 voltage
gain) is being produced by the channel. The signal is reaching and being
amplified by the amplifier.
•
TEMP (temperature) - indicates an unstable thermal condition. The
amplifier protection will activate and shut down the affected channel. The
light will remain illuminated until a safe operating temperature is
achieved.
•
DC (direct current) - indicates abnormal operating conditions. The light
illuminates when conditions arise that will damage the loudspeaker driven
by that channel. The amplifier automatically attempts to restart to correct
the condition. If the amplifier does not return to a normal operating
status, contact your local authorized service center.
•
ACTIVE - indicates that the channel is operational. The light illuminates
under normal operation and remains on, even when the channel is in ACL
gain reduction. If the light is off, there is no signal at the output
connectors.
C
AC Power Switch
Turns the power on and off. This is a combination magnetic circuit breaker and
switch.
D
Rack Mounting Ears
Provides mounting holes for rack installation.
Rear Panel
If the PARALLEL or BRIDGE input mode is selected, the signal input to channel A of
the power amp is also available as an output on the channel B input connector. This
allows you to patch input signals between multiple amplifiers.
Letter
Component
Description
A
AC Power Inlet
Provides AC power to the amplifier. Connect the IEC line cord to this connector to
provide power to the amplifier.
B
Outputs
Provides the connecting and bridge outputs:
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5
C
Inputs
•
CH. B - allows a twist lock connector to be connected to the channel B output.
•
BRIDGE - allows for a twist lock connector to be connected to the bridged
amplifier output.
•
CH. A - allows a 2-pole or 4-pole twist lock connector to be connected to the
channel A output. Connecting a 4-pole twist lock connector provides the
outputs of both channels A and B on the corresponding poles of the 4-pole
connector.
•
Provides the connecting inputs and input controls. Input connections are made
using the 3-pin XLR (pin 2+) or 6.3 mm (1/4 in.) plug combination connectors
on the rear panel of the amplifier. The inputs are actively balanced.
The following channel modes are available:
•
SUB (subwoofer) - activates the low pass filter for the corresponding channel.
This Linkwitz-Riley filter limits the frequencies sent to the associated amplifier
channel to those frequencies below 100 Hz. in situations where separate
subwoofer cabinets are being used, this position indicates connecting the
subwoofer speaker cabinet to the channel associated with the subwoofer
switch.
•
FULL-RANGE - allows all frequencies to pass to the amplifier. This setting is
normally used when connecting a full range speaker enclosure to the amplifier’s
output.
•
HIGH-OUT (switch high pass) - activates the high pass filter for the
corresponding channel. This Linkwitz-Riley filter limits the frequencies sent to
the associated amplifier channel to those frequencies above 100 Hz. In
situations where separate subwoofer cabinets are being used, this position
would indicate connecting the mid-high frequency speaker cabinet to the
channel associated with the high pass switch.
The following channel input mode switches are available:
•
PARALLEL - routes the signal input of channel A to both channel A and channel
B outputs. Use this to route the single input signal to each of the discrete
amplifier outputs.
•
BRIDGE - combines both amplifier channels together for a powerful singlechannel amplifier. Routes the signal connected to channel A input to the bridged
amplifier channels. This is required when the single input signal is to be routed
as the bridged amplifier output.
•
STEREO - provides independent channel operation. Routes the signal connected
to channel A input to the amplifier channel A output and the signal connected to
channel B input to the amplifier channel B output. This is required when
discrete inputs to channels A and B should be routed to the corresponding
amplifier outputs.
Do not adjust the mode when the amplifier is turned on.
D
Variable Speed
80mm DC Fan
Provides air flow through the cooling fins of the channel heat-sinks, to dissipate the
heat of the power devices. Air exhausts through the front panel slots. Fan speed is
automatically controlled; the fan speed increases as the heat-sink temperature
rises, and slows as the temperature lowers. Make sure these vents remain clear to
allow unrestricted air flow.
If a channel’s heat-sink surpasses the maximum temperature limit, the high
temperature sensing circuit will idle the channel until a safe operating temperature
is restored. If the power supply overheats, the high temperature sensing circuit will
idle both channels until a safe operating temperature is restored.
6
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Installation
This section provides information and procedures for installing and connecting the Christie Vive Audio
CDA2/CDA3 Professional Power Amplifiers.
Install the CDA2 or CDA3
An incorrect power setup creates a fire and shock hazard. Do not attempt operation
unless the power cord, power socket, and power plug meet the appropriate local
rating standards. Have a certified electrician install a permanent single-phase
connection from the amplifier to the AC supply for correct installation. Failure to
comply could result in death or serious injury.
Always provide proper ventilation to the Christie Vive Audio CDA2/CDA3 Professional
Power Amplifiers. Allow 31 cm (12 in.) clearance at the front and the back of the
amplifier. Make sure that vents are not blocked and that air can flow freely through
the unit. Do not use doors or covers on the front of the rack. If a back cover is used,
provide at least one standard rack-space opening for every 4 amplifiers. Failure to
comply may result in equipment or property damage.
1. Slide the CDA2 or CDA3 amplifier into your rack.
2. Secure the amplifier in position using 4 screws through the rack mounting ears.
3. Connect one end of the power cord to the AC power inlet and the other end to the power outlet.
4. Connect the output and input connectors.
See Output Connections on page 9, and Input Connections on page 8.
5. Turn the power on.
See Turn the Power On on page 10.
Input Connections
Always turn off and disconnect the Christie Vive Audio CDA2/CDA3 Professional
Power Amplifiers from power before making audio connections. Failure to comply
may result in equipment or property damage.
This section describes the input connections of the Christie Vive Audio CDA2/CDA3 Professional Power
Amplifiers.
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7
Stereo Mode Connections
A
3-pin XLR, or 6.3 mm (1/4 in.)
phono jacks connected to the CH. A
and CH. B INPUTS
B
Input selector set to STEREO
B
Input selector set to PARALLEL
Parallel Mode Connections
A
3-pin XLR, or 6.3 mm (1/4 in.)
phono jacks connected to the CH. A
INPUTS
Output Connections
Always turn off and disconnect the Christie Vive Audio CDA2/CDA3 Professional
Power Amplifiers from power before making audio connections. Failure to comply
may result in equipment or property damage.
8
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This section describes the output connections of the Christie Vive Audio CDA2/CDA3 Professional Power
Amplifiers.
Stereo Mode Connections
A
NL2 twist-lock connectors connected
to CH. A and CH. B OUTPUTS
B
Input selector set to STEREO
Biamp Mode Connections
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A
NL4 twist-lock connector connected
to CH. A. OUTPUTS
B
Input selector set to STEREO
B
3-pin XLR, or 6.3 mm (1/4 in.) phono
jacks connected to the CH. A INPUTS
Bridge Mode Connections
A
NL2 twist-lock connector connected to
the BRIDGE OUTPUTS
C
Input selector set to BRIDGE
Operation
Turn the Power On
10
•
Use only the AC power cord that is provided. DO NOT attempt operation if
the AC supply is not within the specified voltage and power range. Failure
to comply could result in death or serious injury.
•
As a safety feature, the amplifier is equipped with a three-wire plug with a
third (grounding) pin. If you are unable to insert the plug into the outlet,
contact an electrician to have the outlet replaced. DO NOT defeat the
safety purpose of the grounding-type plug. Failure to comply could result
in death or serious injury.
•
DO NOT attempt operation if the AC supply is not within the rated voltage
range as specified on the license label. For power requirements, see Power
on page 16. Failure to comply could result in death or serious injury.
•
Disconnect amplifier from AC before opening any enclosure. Failure to
Christie Vive Audio CDA2/CDA3 Amplifiers User Manual
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comply could result in death or serious injury.
•
Only qualified service technicians are permitted to open enclosures and
only if the amplifier is disconnected from AC power. Failure to comply
could result in in death or serious injury.
•
DO NOT allow anything to rest on the power cord. Locate the amplifier
where the cord cannot be damaged by persons walking on it or objects
rolling over it. Never operate the amplifier if the power cable appears
damaged in any way. Failure to comply could result in in death or serious
injury.
•
DO NOT overload power outlets and extension cords as this can result in
fire or shock hazards. Failure to comply could result in in death or serious
injury.
1. Verify that the power cord is connected and that the amplifier settings are as required.
2. Move the AC power switch to the on position.
Turn the Power Off
Move the AC power switch to the off position.
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11
Troubleshooting
This section provides basic Christie Vive Audio CDA2/CDA3 Professional Power Amplifiers troubleshooting
information.
Do not service the amplifier yourself. Contact a qualified service technician.
Problem
Resolution
The amplifier power will not turn
on.
•
Verify that the amplifier is receiving power. Plug the amplifier into the
AC mains. Connect the IEC line cord to the AC power inlet on the rear
panel of the amplifier.
•
Verify that the circuit breaker for the mains circuit is open. Reset the
circuit breaker, then turn the amplifier power on again. If the AC mains
breaker continues to open, check the voltage and amperage (d) of the
circuit.
•
Verify that the circuit breaker has the correct voltage and amperage
(d). If required, have a qualified electrician replace the circuit breaker.
If the circuit breaker continues to open, send the amplifier to an
authorized service center for repair.
The amplifier power is on, but
there is no sound from the
loudspeakers.
•
•
Check the amplifier indicators:
•
If the ACTIVE indicators are lit for each channel, verify that the
amplifier is receiving power. See The amplifier power will not turn
on. on page 13.
•
If the SIG (signal) indicators are lit or blinking, check the level of
the input signal source.
•
If the TEMP (temperature) indicators are lit for either channel, the
amplifier has overheated and idled one or both channels. See The
amplifier is overheating. on page 14.
•
If the DC (direct current) indicators are lit for either channel, an
abnormal condition exists within the amplifier or the load it is
driving. If the channel does not reset and the DC indicators remain
lit, send the amplifier to an authorized service center for repair.
Check the amplifier mode:
•
If the amplifier is in PARALLEL or BRIDGE mode and the input signal
is connected to CH B, connect the input signal is CH A. See Input
Connections on page 8.
•
If the amplifier is in BRIDGE mode and the output connections is
made to CH A or CH B, use the center BRIDGE output connector to
connect the loudspeaker. See Bridge Mode Connections on page
11.
•
Verify that the attenuators on the front panel are turned up. Turn the
attenuators up until you hear output from the loudspeakers.
•
Check all connections between the amplifier and loudspeakers. Make
sure that the twist lock connectors are fully-inserted and seated. The
connectors must be inserted and turned 1/4” clockwise until they lock
in position. If screw terminal connections are used at the loudspeaker
inputs, make sure the cables are attached and do not cause a short
between the poles of the loudspeaker inputs.
•
Inspect the loudspeaker cables and repair any shorts or breaks in the
cables, or replace the cables.
•
Inspect all loudspeaker cable connection terminations to make sure
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13
they are complete and wired correctly. Verify the polarity of each
connection.
There is output from one channel,
but not from the other channel.
•
Verify that the attenuators are turned up for both channels.
•
Check all connections between the amplifier and loudspeakers. Make
sure that the twist lock connectors are fully-inserted and seated. The
connectors must be inserted and turned 1/4” clockwise until they lock
in position. If screw terminal connections are used at the loudspeaker
inputs, make sure the cables are attached and do not cause a short
between the poles of the loudspeaker inputs.
•
•
Check the amplifier indicators:
•
If the SIG (signal) indicators are lit or blinking for both channels,
make sure the channel’s input signal is present and at a sufficient
level to drive the input.
•
If the TEMP (temperature) indicators are lit for either channel, the
amplifier has overheated and idled one or both channels. See The
amplifier is overheating. on page 14.
•
If the DC (direct current) indicators are lit for either channel, an
abnormal condition exists within the amplifier or the load it is
driving. If the channel does not reset and the DC indicators remain
lit, send the amplifier to an authorized service center for repair.
Check the amplifier mode:
•
If the amplifier is in STEREO mode, make sure there is signal input
to CH A and CH B. See Input Connections on page 8.
•
If the amplifier is in STEREO or PARALLEL mode, make sure that one of
the loudspeaker connections is not connected to the BRIDGE output.
There is sound output from the
loudspeakers, but there are no
high frequencies present in the
output.
•
Check if the low-pass filter is engaged on either channel. Make sure the
input mode selector switch is set to the correct mode (Full Range is the
default mode).
•
Verify that the NL4 twist-lock connector is wired correctly if the
loudspeaker is biamped through the CH A output connection. See
Biamp Mode Connections on page 10.
There is sound output from the
loudspeakers, but there are no low
frequencies present in the output.
•
Check if the high-pass filter is engaged on either channel. Make sure
the input mode selector switch is set to the correct mode (Full Range is
the default mode).
•
Verify that the NL4 twist-lock connector is wired correctly if the
loudspeaker is biamped through the CH A output connection. See
Biamp Mode Connections on page 10.
•
Verify that there is adequate ventilation around the amplifier. Make
sure there is 31 cm (12 in.) clearance at the front and the back of the
amplifier.
•
Verify that the amplifier cooling vents are not blocked.
•
Check the cooling fan at the rear panel of the amplifier to make sure it
is working. If the power amplifier has overheated, the TEMP indicators
are lit, and the fan is not operating, cease operation of the amplifier
and send it to an authorized service center for repair.
•
Verify that the amplifier is operating within its rated impedance. Check
the loudspeaker load being presented to the amplifier outputs. The
minimum load impedance for the CDA2 and CDA3 power amplifier is 2
ohms. Loudspeaker loads below 2 ohms stereo (4 ohms for each
channel) or 4 ohms bridged cause the amplifier to overheat. If
overloaded, correct the loudspeaker configuration or load the resume
operation.
The amplifier is overheating.
14
Christie Vive Audio CDA2/CDA3 Amplifiers User Manual
020-100355-02 Rev. 1 (03-2014)
Specifications
This section provides Christie Vive Audio CDA2/CDA3 Professional Power Amplifiers specifications.
Audio
Specification
CDA2 Value
CDA3 Values
Input common mode rejection
ratio (CMRR)
>-69 dB @ 1kHz
>-76dB @ 1kHz
Voltage gain
x60 (+35dB)
x75 (+37dB)
Crossover
100Hz switchable 2nd order high pass
and 3rd order low pass per channel
100Hz switchable 2nd order high pass
and 3rd order low pass per channel
Crosstalk
>-70dB @ 1kHz @ 250 watts power @
8 ohms
>-70dB @ 1kHz @ 100 watts power @
8 ohms
Hum and noise
>-100dB, “A” weighted reference to
rated power @ 4 ohms
>-100dB, “A” weighted reference to
rated power @ 4 ohms
Slew rate
> 12V/μs
> 12V/μs
Damping factor (8 ohms)
> 170:1 @ 20Hz – 1kHz @ 8 ohms
> 255:1 @ 20Hz – 1kHz @ 8 ohms
Input sensitivity
0.775 volts +/- 3% for 1kHz 4 ohm
rated power, 35 volts +/- 3% for 1kHz
2 ohm rated power
0.740 volts +/- 3% for 1kHz 4 ohm
rated power, 0.71 volts +/- 3% for
1kHz 2 ohm rated power
Input impedance
15k ohms, balanced and 7.5k ohms,
unbalanced
15k ohms, balanced and 7.5k ohms,
unbalanced
Protection
•
Thermal
•
Thermal
•
DC
•
DC
Subsonic
•
Subsonic
•
•
Incorrect loads
•
Incorrect loads
•
Under and over voltage
•
Under and over voltage
Connections
Specification
CDA2 Value
CDA3 Values
Inputs
Dual combination 6.3 mm (1/4 in.) and
XLR
Dual combination 6.3 mm (1/4 in.) and
XLR
Outputs
(3) 4-pin twist-lock connectors for 2
channels plus bridge
(3) 4-pin twist-lock connectors for 2
channels plus bridge
Christie Vive Audio CDA2/CDA3 Amplifiers User Manual
020-100355-02 Rev. 1 (03-2014)
15
Power
Specification1
CDA2 Value
CDA3 Values
Input power
requirement
120V~; 60Hz; 320W, Class I
120V~; 60Hz; 495W, Class I
220-240V~; 50/60Hz; 320W, Class I
220-240V~; 50/60Hz; 495W, Class I
100V~; 60Hz; 320W, Class I
100V~; 60Hz; 495W, Class I
Rated power
Bridged at 4
ohms
Bridged at 8
ohms
2 chs x 2
ohms
2,100 watts 20 ms repetitive burst/
3,640 watts 20ms repetitive burst/
1,950 watts @ 1kHz 1% THD
3,000 watts 1% THD @ 1kHz
N/A
2,000 watts 20ms repetitive burst/
1,550 watts 0.15% THD @ 1kHz
1,100 watts 20 ms repetitive burst/
1,820 watts 20ms repetitive burst/
900 watts 1% THD both channels
driven @ 1kHz
1,500 watts 1% THD both channels
driven @ 1Khz
2 chs x 4
ohms
600 watts 20ms repetitive burst/570
watts 1% THD/530 watts 0.15% THD,
both channels driven @ 1Khz
1,000 watts 20ms repetitive
burst/900 watts 1% THD/830 watts
0.15% THD, both channels driven @ 1
Khz
2 chs x 8
ohms
370 watts 20ms repetitive burst/325
watts 1% THD/300 watts 0.15% THD,
both channels driven @ 1 Khz
540 watts 20ms repetitive burst/500
watts 1% THD/450 watts 0.15% THD,
both channels driven @ 1 kHz
Minimum load impedance
2 ohms
2 ohms
Maximum RMS voltage swing
56 volts
71 volts
Frequency Response
10Hz – 30kHz: +/- 3 dB at 1 watt, 8
ohms
20Hz – 28kHz: +0dB, -3.0 dB at 1
watt
20 Hz
20kHz, 2 chs
x 2 ohms
<0.25% @ 800 watts 20Hz to 4kHz,
decreasing to 760 watts @ 20kHz,
both channels driven
<0.5% @ 1,350 watts 20Hz
increasing to 1,380 watts @ 20kHz,
both channels driven
20kHz, 2 chs
x 4 ohms
<0.15% @ 540 watts 20Hz to 20kHz,
both channels driven
<0.15% @ 800 watts 20Hz increasing
to 850 watts @ 20kHz, both channels
driven
20kHz, 2 chs
x 8 ohms
<0.15% @ 300 watts 20Hz to 10kHz,
both channels driven
<0.15% @ 450 watts 20Hz increasing
to 500 watts @ 20kHz, both channels
driven
1/8 power
540VA (315w) @ 2 ohms, 370VA
(185w) @ 4 ohms, 240VA (115w) @ 8
ohms
960VA (540w) @ 2 ohms, 620VA
(320w) @ 4 ohms, 400VA (190w) @ 8
ohms
1/3 power
1,250VA (760w) @ 2 ohms, 750VA
(425w) @ 4 ohms, 460VA (240w) @ 8
ohms
2,070VA (1,310w) @ 2 ohms,
1,220VA (700w) @ 4 ohms, 740VA
(400w) @ 8 ohms
90VA (40W)
140VA (60w)
Current draw
Idle consumption
1.
16
Rated power readings made with BW: 20Hz to 22kHz. All power measurements made @ 120VAC or 240VAC. 2ohm steady state sine wave
power is time limited by circuit breaker.
Christie Vive Audio CDA2/CDA3 Amplifiers User Manual
020-100355-02 Rev. 1 (03-2014)
Block Diagram
Physical
Specification
CDA2 Value
CDA3 Values
Enclosure
0.157 cm (0.062 in.) aluminum
18ga. galvanized steel
Dimensions (H x W x D)
8.9 cm x 48.3 cm x 26.7 cm
(3.5 in.) x (19 in.) x (10.5 in.)
8.9 cm x 48.3 cm x 26.7 cm + 0.15
cm for handles
Weight (net)1
4.94 kg (10.90 lb)
5.54 kg (12.2 lb)
Weight (gross)2
6.02 kg (13.3 lb)
6.30 kg (13.9 lb)
1.
Net weight excludes the power cord.
2.
Gross weight excludes the power cord.
Christie Vive Audio CDA2/CDA3 Amplifiers User Manual
020-100355-02 Rev. 1 (03-2014)
(3.5 in.) x (19 in.) x (10.5 in.) + 0.6
in. for handles
17
*000-104317-01*
ASSY TECH DOCS VIVE CDA2-CDA3