CV Series
User Manual
This User Manual is made available in Adobe Acrobat format.
In order to view the manual and utilize it’s enhancements we
recommend that you download Adobe Acrobat Reader® 4.0 or
greater. If you do not currently have this viewer installed on your
computer, or you have an older version the reader is available
By going to the table of contents you can directly access any
topic outlined there, by simply clicking on the topic.
iON Media is a registered trademark of Carver Professional, A Phoenix Gold International Company
AMX, PANJA and Crestron are the registered trademarks of their respective owners.
© Phoenix Gold International, Inc. February 2001
Rev 04.08.021
- 1 –
Download from Www.Somanuals.com. All Manuals Search And Download.
INTRODUCTION
Congratulations on your purchase of a new Carver Professional CV Series Power
Amplifier. The CV Series amplifiers are designed expressly for commercial and
institutional audio applications. The CV Series amplifiers are designed and manufactured
by Carver Professional, a division of Phoenix Gold International, Inc. They combine
Carver Professional’s experience in pro audio along with the needs of the system
integrator to provide an uncompromising product for the commercial sound industry. The
sonic heritage of Carver Professional combined with the performance, manufacturing
quality and attention to detail that has defined Phoenix Gold International assures you of
the value and integrity you seek in an amplifier product. Thank you for placing your
confidence in Carver Professional and Phoenix Gold. We know your amplifier will
provide many years of dependable service and reliable sound reproduction.
Please read this entire manual, especially the Safety Warnings, before operating your
amplifier.
UNPACKING AND PAPERWORK
Carefully unpack the amplifier and keep the original carton and packing materials for future
moving, shipment or long-term storage. After opening the box, please check for visible signs
of damage that were not apparent from the outside of the box. If you encounter what appears
to be concealed damage, please contact your Carver Professional Dealer before installing
unit.
Important Paperwork
Make sure to save your sales receipt. Your receipt is extremely important to establish the
duration of your Limited Warranty and for insurance purposes. Next, make a note of the
serial number, which is located on the back of the amplifier. Record it in the space provided
below for convenient reference.
Model: _______________ Serial Number: __________________________
Purchased at: __________________________ Date: _________________
Finally, take a moment to fill out the Warranty Registration Card packed with the amplifier and
return it to Carver Professional. This will allow us to keep you informed about new products,
as they become available
.
Rev 04.08.021
- 3 –
Download from Www.Somanuals.com. All Manuals Search And Download.
CV1501
CV2501
Power Output
Power Output
• 150W mono into 4 ohm and 8 ohm loads,
autoformer coupled, 40Hz to 20kHz ±3db
with < 0.5% THD at full power
• 250W mono into 4 ohm and 8 ohm loads,
autoformer coupled 40Hz to 20kHz ±3dB
with < 0.5% THD at full power
• 150W mono transformer coupled @ 25V,
35V, 50V, 70V and 100V 40Hz to 18kHz ±3dB
with < 0.5% THD at full power
• 250W mono transformer coupled @ 25V,
35V, 50V, 70V and 100V, 40Hz to 18kHz ±3dB
with < 0.5% THD at full power
Common Features
• Convection Cooling
• 26Hz High Pass Filter
• Switched 80Hz and 120Hz (12db/Octave cut)
High Pass Filters
• Terminals for Sequencing Power ON/OFF
• Speaker Output via large gauge Euro Style
connectors
• Power Switch, 3 positions On, Off, Standby
• AC Line Cord (Detachable IEC Type)
• Optional Accessories:
• 5 segment LED level display per channel
including signal present and clip indicators
• 3 LED display per channel of Power, Protect
and Thermal Overload
• Standby LED indicates the amplifier is in
Standby Mode
• Data LED (used with Computer Control &
Monitoring module)
• Level control can be covered with a snap in
cap (supplied) to prevent tampering
• Remote Control of output level via Euro Style
connector
• Unbalanced Effects Loop (send/receive) via
Euro Style Connector
• Standard Mono Input Module with line level
input via Euro Style connector and XLR jack,
connected in parallel
− Four Input Mixer Module with zone assignment
− Paging Modules with variable ducking
− Expanded Mic/Line Level Input Module
− Computer Control & Monitoring via iON
Media Control Module
− DSP control of 28 Band Graphic EQ, 5 Band
Parametric EQ, HP Filter, LP Filter, Crossover,
Adjustable Limiting and Adjustable Delay via
iON Media DSP Tools Module
• Switched Clip Limiter
Rev 04.08.021
- 4 –
Download from Www.Somanuals.com. All Manuals Search And Download.
SPECIFICATIONS with Basic input module
PERFORMANCE:
• THD:
<0.5% @ rated power, 0.2% 1/8 rated power at1 kHz
• IMD DIM30 Method:
• Dynamic Headroom:
• Power Bandwidth:
• Frequency Response:
• Signal-to-Noise:
• CMRR:
<0.2%
1.5dB
40 Hz to 20 kHz, 4 and 8 ohm loads
30 Hz to 20 kHz +0.5, -3dB(4 and 8 ohm loads)
94dB (typical), A-weighted, referred to rated power
75dB at 1kHz
• Slew Rate:
7V/µSec
• Sensitivity for rated power (includes EFX Inputs):
• Input Impedance (includes EFX Inputs):
• Input Overload (includes EFX Inputs):
0dBu or 0.775 Vrms
50kΩ balanced
20 dBu
• Protection:
• Stability:
• Duty Cycle:
Thermal, Short Circuit, Over-current & Over Voltage, self-resetting
Unconditionally stable into reactive loads
Continuous operation with dynamic signal at 1/3rd power
POWER REQUIREMENTS:
• Mains Voltage (output power rated at nominal voltage):
100VAC, 50-60Hz ±20%
120VAC, 60Hz ±20%
230VAC, 50Hz ±20%
• Power Consumption
(See Appendix A)
REGULATORY COMPLIANCE:
• Proposed ETL/C Mark to:
• CE Certification to:
UL6500, 2nd Edition
EN55103-1 & EN55103-2
PHYSICAL:
• Cooling Method:
Convection
-10oC to 55oC, up to 85% RH
-45oC to 70oC, up to 93% RH
3.5” H (2U) x 19.0” W x 16” D
89mm x 483mm x 438mm
CV1501 – 27.4lbs / 12.4kg
CV2501 – 32.7lbs / 14.9kg
CV1501 – 32.9lbs. / 15.0kg
CV2501 – 38.2lbs. / 17.4kg
• Operating Environment:
• Storage Environment:
• Dimensions:
• Net Weight:
• Shipping Weight:
Rev 04.08.021
- 5 –
Download from Www.Somanuals.com. All Manuals Search And Download.
CV1502
CV2502
Power Output
Power Output
• 150W per channel into 4 ohm and 8 ohm loads,
autoformer coupled, 40Hz to 20kHz ±3dB
with < 0.5% THD at full power
• 250W per channel into 4 ohm and 8 ohm loads,
autoformer coupled, 40Hz to 20kHz ±3dB
with < 0.5% THD at full power
• 150W per channel, transformer coupled @ 25V,
35V, 50V, 70V and 100V, 40Hz to 18kHz ± 3dB
with < 0.5% THD at full power
• 250W per channel, transformer coupled @ 25V,
35V, 50V, 70V and 100V, 40Hz to 18kHz ± 3dB
• 300W parallel mono at 4 Ohms, 300W parallel
and bridged mono at 8 and 16 Ohms, 50V, 70V,
100V, 140V and 200V with no more than 0.5% THD
• 500W parallel mono at 4 Ohms, 500W parallel
and bridged mono at 8 and 16 Ohms, 50V, 70V,
100V, 140V and 200V with no more than 0.5% THD
Common Features
• Convection Cooling
• 26Hz High Pass Filters
• 5-segment LED level display, per channel,
including signal present and clip indicators
• 3 LED display, per channel, of Power, Protect and
Thermal Overload
• Switched 80Hz and 120Hz (12db/Octave cut)
High Pass Filters
• Terminals for Sequencing Power ON/OFF
• Speaker Outputs via large gauge Euro Style
connectors
• Power Switch, 3 positions On, Off, Standby
• AC Line Cord (Detachable IEC Type)
• Optional Accessories:
− Four Input Mixer Module with zone assignment
− Paging Modules with variable ducking
− Expanded Mic/Line Level Input Module
− Computer Control & Monitoring via iON Media
Control Module
− DSP control of 28 Band Graphic EQ, 5 Band
Parametric EQ, HP Filter, LP Filter, Crossover,
Adjustable Limiting and Adjustable Delay via
• Standby LED indicates the amplifier is in Standby
Mode
• Data LED (used with Computer Control module)
• Level controls can be covered with a cap
(supplied) to prevent tampering
• Remote control of output level via Euro Style
connector
• Unbalanced Effects Loop (send/receive) via Euro
Style Connector
• Standard Dual Input Module with line level inputs
via Euro Style connectors and XLR jacks,
connected in parallel
• Switched Clip Limiters
iON Media DSP Tools Module
Rev 04.08.021
- 6 –
Download from Www.Somanuals.com. All Manuals Search And Download.
SPECIFICATIONS with Basic input module
PERFORMANCE:
• THD:
0.5% at rated power, 0.2% at 1/8 rated power at 1kHz
• IMD DIM30 Method:
• Dynamic Headroom:
• Power Bandwidth:
• Frequency Response:
• Signal-to-Noise
• Crosstalk:
<0.2%
1.5dB
40 Hz to @20 kHz +0.5, -3 dB
26 Hz to 20 kHz, 4 and 8 ohm loads
94dB (typical), A-Weighted, referred to rated power
-60dB, full bandwidth
• CMRR:
• Slew Rate:
75dB at 1kHz
7V/µSec
• Sensitivity for rated power (includes EFX Inputs):
• Input Impedance (includes EFX Inputs):
• Input Overload (includes EFX Inputs):
0dB or 0.775Vrms
50kΩ balanced
20dBu
• Protection:
Thermal, Short Circuit, and Over-current & Over Voltage
Unconditionally stable into reactive loads
• Stability:
• Duty Cycle:
Continuous operation at 1/3 rated power
POWER REQUIREMENTS:
• Mains Voltage (output power rated at nominal voltage): 100VAC, 50-60Hz ±20%
120VAC, 60Hz ±20%
230VAC, 50Hz ±20%
• Power Consumption
(See Appendix A)
REGULATORY COMPLIANCE:
• Proposed ETL/C Mark to:
• CE Certification to:
UL6500, 2nd Edition
EN55103-1 & EN55103-2
PHYSICAL:
• Cooling Method:
• Operating Environment:
• Storage Environment:
• Dimensions:
Convection
-10oC to 55oC, up to 85% RH
-45oC to 70oC, up to 93% RH
3.5” H (2U) x 19.0” W x 17.25” D
89mm x 483mm x 438mm
CV1502 – 35.1lbs / 15.9kg
CV2502 – 42.5lbs / 19.3kg
CV1502 – 41.0lbs. / 18.0kg
CV2502 – 48.0lbs. / 22.0kg
• Net Weight:
• Shipping Weight:
Rev 04.08.021
- 7 –
Download from Www.Somanuals.com. All Manuals Search And Download.
CV4002
Power Output
• 400W per channel into 4 ohm and 8 ohm loads, autoformer coupled,
40Hz to 20kHz ±3dBwith < 0.5% THD at full power
• 400W per channel, transformer coupled @ 25V, 35V, 50V, 70V and 100V,
40Hz to 18kHz ±3dB with < 0.5% THD at full power
• 800W in parallel mono at 4 Ohms, 800W parallel and bridged mono at 8 and 16 Ohms,
50V, 70V, 100V, 140V and 200V, with no more than 0.5% THD
Common Features
• Convection Cooling
• 26Hz High Pass Filters
• 5-segment LED level display, per channel,
including signal present and clip indicators
• 3 LED display, per channel, of Power, Protect and
Thermal Overload
• Switched 80Hz and 120Hz (12db/Octave cut)
High Pass Filters
• Terminals for Sequencing Power ON/OFF
• Speaker Outputs via large gauge Euro Style
connectors
• Power Switch, 3 positions On, Off, Standby
• AC Line Cord (Detachable IEC Type)
• Optional Accessories:
− Four Input Mixer Module with zone assignment
− Paging Modules with variable ducking
− Expanded Mic/Line Level Input Module
− Computer Control & Monitoring via ION Media
Control Module
• Standby LED indicates the amplifier is in Standby
Mode
• Data LED (used with Computer Control Module)
• Level controls can be covered with a cap
(supplied) to prevent tampering
• Remote control of output level via Euro Style
connector
• Unbalanced Effects Loop (send/receive) via Euro
Style Connector
• Standard Dual Input Module with line level inputs
via Euro Style connectors and XLR jacks,
connected in parallel
− DSP control of 28 Band Graphic EQ, 5 Band
Parametric EQ, HP Filter, LP Filter, Crossover,
Adjustable Limiting and Adjustable Delay via
• Switched Clip Limiters
iON Media DSP Tools Module
Rev 04.08.021
- 8 –
Download from Www.Somanuals.com. All Manuals Search And Download.
SPECIFICATIONS with Basic input module
PERFORMANCE:
• THD:
0.5% at rated power, 0.2% at 1/8 rated power at 1kHz
• IMD DIM30 Method:
• Dynamic Headroom:
• Power Bandwidth:
• Frequency Response:
• Signal-to-Noise
• Crosstalk:
<0.2%
1.5dB
40 Hz to 20 kHz 4 and 8 ohm loads
26 Hz to 20 kHz +0.5, -3 dB 4 and 8 ohm loads
94dB (typical), A-Weighted, referred to rated power
-60dB, full bandwidth
• CMRR:
• Slew Rate:
75dB @ 1kHz
7V/µSec
• Sensitivity for rated power (includes EFX Inputs):
• Input Impedance (includes EFX Inputs):
• Input Overload (includes EFX Inputs):
0dB or 0.775Vrms
50kΩ balanced
20dBu
• Protection:
Thermal, Short Circuit, and Over-current & Over Voltage
Unconditionally stable into reactive loads
• Stability:
• Duty Cycle:
Continuous operation at 1/3 rated power
POWER REQUIREMENTS:
• Mains Voltage (output power rated at nominal voltage): 100VAC, 50-60Hz ±20%
120VAC, 60Hz ±20%
230VAC, 50Hz ±20%
• Power Consumption
(See Appendix A)
REGULATORY COMPLIANCE:
• Proposed ETL/C Mark to:
• CE Certification to:
UL6500, 2nd Edition
EN55103-1 & EN55103-2
PHYSICAL:
• Cooling Method:
• Operating Environment:
• Storage Environment:
• Dimensions:
Convection
-10oC to 55oC, up to 85% RH
-45oC to 70oC, up to 93% RH
5.25” H (2U) x 19.0” W x 17.25” D
133mm x 483mm x 438mm
CV4002 – 54.0lbs. / 24.5kg
CV4002 – 60.0lbs. / 27.3kg
• Net Weight:
• Shipping Weight:
Rev 04.08.021
- 9 –
Download from Www.Somanuals.com. All Manuals Search And Download.
Figure 1
CONTROLS AND FUNCTIONS
1. Rack Mount Ears
The ears for rack mounting the CV Series amplifiers are removable. If your installation does not require rack
mounting, the rack ears can be removed, however the screws that fasten the rack ears to the chassis should
be replaced to maintain the chassis’ structural integrity.
2. Level Controls
The Level Controls on the CV Series amplifiers utilize a DC voltage to control the output level of the CV
Series amplifiers through a VCA (voltage controlled amplifier). The knobs can be removed and replaced with
black plastic caps provided with the amplifier. Before installation of the plastic caps, be sure to set the
maximum level that you will need for each channel or zone. Once the caps have been installed they are
difficult to remove.
3. Status LED Display
The READY (Green LED) indicates that the power-up process has completed, and the amplifier is
operational. PROTECT (Red LED) indicates that the CV Series amplifier has detected a fault (over-current,
over-voltage or short circuit, and has placed itself into a protect mode. Check all connections and level
settings for a problem. THERMAL (Red LED) indicates that the CV Series amplifier has exceeded the
maximum allowable operating temperature. The CV Series amplifier will restart as soon as the power
transformer or heat sink has reached a safe operating temperature.
4. Level Display LEDs
Five LEDs per channel or zone, display the signal level of the CV Series amplifier. SIGNAL LED indicates
there is signal at the input of that channel or zone. The -20dB LED indicates a signal at the output of 20dB
below rated output. The –12dB LED indicates a signal at the output of 12db below rated output. The –6dB
LED indicates a signal at the output of 6dB below rated output. The CLIP LED indicates a signal at the output
that exceeds the rated output of the amplifier. NOTE: It is normal to operate the CV Series amplifier so that
the CLIP LED illuminates (Red) at the loudest peaks of the information being reproduced. If the Clip LED is
staying on continuously, or for extended rather than momentary intervals, levels in that channel or zone
should be reduced to avoid driving the amplifier into over-voltage or over-current conditions.
Rev 04.08.021
- 10 –
Download from Www.Somanuals.com. All Manuals Search And Download.
Figure 2
5. CV Series Model Number
The Model number should be interpreted as follows:
The last digit of the model number designates the number or channels or zones supported by the
amplifier. The digits preceding the last digit designate the rated output power of a channel or zone for
that amplifier. The CV Series amplifiers are a constant voltage design, and have the same output at 4
ohm, 8 ohm, 25V, 35V, 50V, 70V and 100V taps. Thus a CV1502 has two channels or zones each rated
at 150 watts per channel at any selected tap.
6. Power Switch
The power switch has three positions. In the top position the amplifier is ON and the AC Mains are
connected to the power supply. In the middle position, the amplifier is OFF and the AC Mains are
disconnected from the power supply. In the bottom position, the amplifier is in the STANDBY MODE.
In this mode the AC Mains are connected to the standby circuit awaiting 12VDC to be supplied to the
sequence connector on the rear of the amplifier. When this 12VDC is detected; a triac connects the AC
Mains to the power supply, turning the amplifier on.
7. Standby LED
The Standby LED (Yellow) indicates that the amplifier is in Standby Mode as discussed in the paragraph
above. The amplifier is capable of being Sequenced ON, only when the STANDBY LED is illuminated.
8. DATA LED
The Data LED indicates network traffic in the Computer Control Module (available as an Accessory) when
illuminated Yellow. NOTE: The DATA LED has no function if the Computer Control module is not
installed, and will not illuminate. Refer to information includes with the Computer Control Module or its
accompanying software.
Rev 04.08.021
- 11 –
Download from Www.Somanuals.com. All Manuals Search And Download.
Figure 3
1. Serial Number
The Serial Number is used by Carver Professional to track units and establish their warranty status.
Be sure to record the serial number of all Carver Professional units, and to keep those records in a safe
and secure location for future reference. Never remove the serial number, as this will void the warranty.
2. Output Connector
The Output Connector is a special non-shorting Euro Connector utilized for safety purposes. The first
three terminals from the left are specifically for low impedance (4 & 8 ohm) speaker loads. Use only the
left Common connection is for the 4 and 8 ohm loads. The next six connections are for distributed
voltage loads, and only the common connection on the right side of the connector (viewed from the rear)
is used with these output connections. One connector is provided for each channel of the amplifier.
Figure 4a
Figure 4b
3. Sequence Connector
The Sequence Connector is a 3-Pin Euro Style connector use to sequence a CV Series amplifier or group
of CV series amplifiers ON. Providing a +12V DC current to the RCV terminal on the Sequence
connector will cause the amplifier to turn ON if the Power Switch is in the Standby position. If you have a
group of CV Series amplifiers, simply connect the +12V DC current to the first amplifier, then connect
from the SEND terminal of the first amplifier to the RECV terminal of the second and so on. Once the
+12V DC is present, the amplifiers will turn on sequentially at approximately two-second intervals.
Removing the +12V DC current from the RECV terminal of the first amplifier will cause the group of
amplifiers to turn OFF. More information on the connections for this feature is available later in this
manual.
Important NOTE: The SEND terminal on the Sequence connector has a +15Vdc potential
whenever the amplifier is “ON”. The User should take caution not to short this terminal to
"Chassis Ground”. The +15Vdc supply, internal to the amplifier, could be damaged.
Rev 04.08.021
- 12 –
Download from Www.Somanuals.com. All Manuals Search And Download.
4. Remote Level
The Remote Level Connector is used to connect a Remote Level Control to the
CV Series amplifier. The connector is a Euro Style connector with the following
connection points, from left to right. (See Figure 5)
RTN – Return, CV2 – Control Voltage for Channel 2 on Dual Channel models,
CV1 – Control Voltage for Channel 1, and +5V volt send from the VCA package.
More information on how to connect this feature is available later in this manual
Figure 5
5. Standard Input Module
A Standard Input Module is included with each CV Series amplifier. The Standard Input Module allows
the use of a balanced or unbalanced line level input via a panel mounted female XLR connector or a
three pin Euro Style connector. The sensitivity of the input is adjustable with a jumper selection on the
input card PCB at either a .775VRMS or 1.5VRMS input level. An additional jumper selection is available to
select Bridged Mono mode, Normal Dual Channel input mode or Parallel Mono input mode. (See
Appendix B) In the Bridged and Parallel input mode, a single input will drive both channels on a dual
channel amplifier. Both a Single channel (MSSI) and Dual channel (MSDI) input cards are available and
are provide with the appropriate CV Series amplifier.
Caution! Before removing the input module for any reason, make certain that the amplifier’s AC mains
are first switched OFF or disconnected.
Figure 6
6. XLR Connector
Female XLR connectors are provided on Standard Input Modules to receive Balanced or Unbalanced line
level input signals. Pin 2 is (+) hot, Pin 3 is (-) negative and Pin 1 is chassis ground. To use the XLR for
an unbalanced input signal, connect the (+) signal to Pin 2, and the shield to Pin 1 with a jumper from Pin
1 to Pin 3.
7. Euro Connector
A three-pin Euro Style connector is provided on the Standard Input Module to receive a Balanced or
Unbalanced line level input signal. Counting from left to right, Pin 1 is (+), Pin 2 is (-) and Pin 3 is chassis
ground. For an unbalanced input signal connect pin 1 to (+), Pin 2 to the Shield and connect a jumper
from Pin 3 to Pin 2.
8. AC Line Cord Receptacle
An IEC type AC line cord receptacle is provided to receive the line cord included with the CV Series
amplifier. An appropriate line cord termination is provided based on the country of destination with each
Rev 04.08.021
- 13 –
Download from Www.Somanuals.com. All Manuals Search And Download.
CV Series amplifier. If your application requires rack mounting, optional line cords, shorter than the
standard 2 meter, are available as accessory item for the CV Series amplifiers.
9. Configuration DIP Switches
Each CV Amplifier channel can be individually configured via the DIP
Switches on the rear panel. The switches for each channel perform the
following functions from left to right: (See figure 7)
Switch 1 - Effects In/Out (up is IN and down is OUT) this switch enables
the receive pins (+ and -) on the Effects Loop connector. When using the
Effects Loop for outboard signal processing this switch must be in the UP
(EFX IN) position.
Note: If the EFX Loop is switched (IN) with no signal present at the
EFX receive inputs, the amplifier will appear to not be working
Figure 7
Switch 2 – Clip Limiter (up is ON and down is OFF) The Clip Limiter prevents the
amplifier from being accidentally driven into hard clipping under normal operation. (Note: The Clip Limiter
will not protect the amplifier from clipped signals that are introduced at the amplifier input.)
Switch 3 – High Pass Filter (up is ON and down is OFF) This switch engages or disengages the internal
High Pass filter.
Switch 4 – Frequency Selection (up is 120Hz and down is 80Hz) this switch selects the frequency of the
High Pass filter. (Note: whenever the High Pass filter is disengaged a 26Hz factory preset high pass filter
is engaged)
10. Effects Loop
A four pin Euro Style connector is provided for an unbalanced Effects Loop send and receive. The Input
Overload of this feature is set at 20dBu. This Effects Loop can be used to send and receive unbalanced
signals from outboard signal processing equipment such as EQ’s, Delays, Limiters and others. For the
Effects Loop receive signal, the
EFX IN Switch on the configuration DIP Switch must be set to the (IN or up) position for that channel or
zone. The Send pins (+ and -) are always engaged and can be used to loop signal from one amp to
another via the receiving amplifiers input module. (Note: The signal at the Send Pins of the Effects Loop
are post any signal processing performed by a optional input module that may be in use in the CV Series
amplifier). Connections to the Effects Loop are intended to be local, and signals sent over long wire runs
are not recommended. Input through the “Input Module” would perform better in this circumstance.
Installation
Location and General Precaution
Observe the following precautions when choosing a location for your amplifier.
A. Do not expose the unit to rain or moisture. If a fluid or foreign object should enter the unit, disconnect
the power plug and contact the Carver Professional Service Center. Do not pull out the plug by
pulling on the cord; grasp the plug firmly and pull.
B. Protect the amplifier from heat, and allow adequate ventilation. Place away from sources of heat,
such as heating vents and radiators. All components produce some heat during operation, so make
sure that the ventilation area above and below the heatsink are not covered and that air is allowed to
circulate freely around the unit. Excessive heat is the single greatest source of both short-term and
long-term component failure.
Mechanical Considerations
When being rack mounted, the CV1501, CV2501, CV1502 and the CV2502 are 2U or 3.5” (89mm) in
height, The CV4002 is 3U or 5.25” (133mm) and they are all 17.25” (438mm) in depth inside the rack
including the rear supports. Secure the unit to the rack mechanically using four screws. The addition of
plastic or rubber washers prevents marring the front panel, but may interfere with grounding.
Rear Support
If the CV Series amplifiers are rack mounted and the rack is to be transported, mechanical support for the
rear of the amplifier(s) is required. This could take the form of any mechanical means of tying the
Rev 04.08.021
- 14 –
Download from Www.Somanuals.com. All Manuals Search And Download.
amplifier’s chassis structure to the rear of the rack during transportation. This practice is recommended
for all electronic components.
Thermal Considerations
When the CV Series amplifiers are used free standing, no thermal considerations are necessary other
than using the four rubber feet supplied with the amplifier. This raises the amplifier above the surface it is
sitting on enough to allow free movement of air through the heatsink located along the left side of the
amplifier.
Note! When several of the CV Series amplifiers are mounted together in a rack, it may be
necessary to provide openings at both the top and bottom of the rack to allow convection to
exchange the heated air at the top of the rack with cool air from the bottom. A minimum space of 1U
should be left between CV Series amplifiers at no more than a 12U interval. This should allow sufficient
cooling of the amplifiers. If the CV Series amplifiers are mixed with other devices, caution should be
taken to locate the CV Series amplifiers together, facilitating the chimney effect of their heatsink design.
Space should be left above and below the CV Series product, grouped together in the rack, for proper
airflow. Additionally, if the CV Series amplifiers are used with other amplifiers, caution must be taken to
ensure the heat forced into the rack from other amplifiers does not interfere with the ventilation of the CV
Series amplifiers.
AC Power Considerations
Ensure that the CV Series amplifier is plugged into an outlet capable of supplying the correct voltage
specified for the model and enough current to allow full-power operation of all the amplifiers utilizing that
circuit. The current demand of a power amplifier varies depending on several factors, including the
impedance of the load, the output level of the amplifier, and the crest factor and duty cycle of the program
material. Under typical conditions reproducing contemporary music, with all channels driven into a four-
ohm load to the point where the peaks are just at the clipping point, the amplifiers require the following
average currents: Psuedo Pink Noise @ 1/3 rated power into 4 ohm autoformer winding.
(See Table 1 below) For full power consumption specifications (See Appendix A)
Model
100VAC (50/60 Hz)
120VAC (60Hz)
230VAC (50Hz)
CV1501 101 Watts / 1.35 Amps 101 Watts / 1.13 Amps
CV2501 148 Watts / 2.06 Amps 153 Watts / 1.75 Amps
CV1502 172 Watts / 2.35 Amps 180 Watts / 1.89 Amps
101 Watts / 588 mA
153 Watts / 1.09 Amps
179 Watts /1.28 Amps
289 Watts / 1.69 Amps
CV2502 285 Watts / 3.7 Amps
CV4002
308 Watts / 3.3 Amps
448 Watts / 4.92 Amps
Table 1
Magnetic Leakage Consideration
The CV Series amplifiers may be mounted without concern for magnetic flux leakage, within the confines
of common sense. For example, it is not good practice to mount any power amplifier near a microphone
input transformer or magnetic storage media.
Input Wiring
The CV Series amplifiers are furnished with a Standard Input Module that allows a line level input, either
balanced or unbalanced. The input connectors on the Standard Input Module are a female XLR and a
3-pin Euro Style connector. These connectors are paired for each channel of the amplifier and are wired
together in parallel.
XLR Connector – Pin 2 is + (hot), Pin 3 is – (negative), and Pin 1 is Chassis Ground. To use this
connector with an unbalanced input Pin 2 is + (hot), Pin 1 is Ground, and Pin 3 should be jumpered to
Pin 1.
Euro Style Connector- From Left to Right Pin 1 is + (hot), Pin 2 is – (negative), and Pin 3 is Chassis
Ground. To use this connector with an unbalanced input; Pin 1 is + (hot), Pin 3 is Ground, and Pin 2
should be jumpered to Pin 3.
Rev 04.08.021
- 15 –
Download from Www.Somanuals.com. All Manuals Search And Download.
Another input to the CV Series amplifiers is provided via the EFX Loop’s RCV (receive) input. This input
is only available when the FX Loop is enabled on the DIP switch located on the rear of the amplifier. This
input is designed for unbalanced line level input only, and should only be used with equipment that is
local to the CV amplifier or rack containing the CV amplifier, such as, an outboard signal processing
device or the SND output from the FX Loop on the same or another (local) CV amplifier. This input offers
low Common Mode Rejection and should not be used for signals from units more than a few feet away, in
order to maintain low noise levels.
Input Sensitivity
The input sensitivity of the CV Series amplifiers is factory preset at 0dBu or 0.775Vrms needed to drive the
amplifier to full rated output. Individual modules for the CV Series amplifiers may allow the user to select
other settings based on the input source. (See Appendix B)
Loudspeaker Polarity
Loudspeakers or the distributed lines containing the step-down transformers must be connected with
consistent polarity for correct phasing between them. Incorrect phasing will do no physical harm, but
frequency response will be adversely affected. The key is to make sure that both speakers, or all
transformers are connected to the output terminals in the same manner. Connect the (+) positive to the
appropriate output connection such as 4, 8, 25V, 35V, 50V, 70V or 100V. Next be certain that the (-)
negative is connected to the correct (Com) or common terminal.
(Note! The low impedance 4 and 8 ohm outputs have a separate common terminal from the distributed
voltage outputs. Facing the rear of the amplifier, the (Com) Common for the low impedance
outputs is on the extreme left of each output connector. The (Com) Common for the distributed
voltages is located on the extreme right of each output connector.)
Mono Operation
Mono operation of the CV Series Dual Channel amplifiers can be accomplished in two ways: Parallel
Mono and Bridged Mono.
Parallel Mono is achieved by driving both channels with a single input. In the parallel mono mode, the
power of both channels can be considered as the total power, however the power is divided into two
zones.
In the bridged mono mode the two channels are combined to form one mono channel of greater power.
One channel of input is fed to both channels via a circuit that inverts the input to one of the channels so
that one channel reproduces the positive half of the input waveform and the other channel reproduces the
negative half of the input waveform. In the bridged mode each channel sees one half of the total
impedance. It is, therefore, not recommended to use a bridged load below 8 ohms.
Parallel Mono – Use the Channel 2 input. In the parallel mono mode the channel 1 input is disabled.
On the input module PCB find the Bridged/Normal/Parallel mode jumpers and change it from its factory
preset “Normal” setting to the “Parallel” mono setting. (See Appendix B) By doing this you have
instructed the input module to send the channel 2 input to both channels to be used as a mono input.
Both output channels of the amplifier use a single input, and the total power of the amplifier is equal to
twice the maximum output of a single channel. However, the total power is equally divided between the
two channels or zones.
Bridged Mono - Use the Channel 2 input. In the bridged mono mode the channel 1 input is disabled.
On the input module PCB find the Bridged/Normal/Parallel mode jumper and change it from its factory
preset “Normal” setting to the “Bridged” mono setting. (See Appendix B) By doing this you have
instructed the input module to invert channel one so that it now represents the negative half of the audio
waveform. Channel 2 is now the non-inverted channel and represents the positive half of the audio
waveform. In this mode of operation each channel of the amplifier see one half of the total impedance, so
that, an 8 ohm load now looks like a 4 ohm load to each channel.
To connect the load to the amplifier you would connect the positive (+) of the load to the terminal of
channel 2 and the negative (-) of the load to the terminal of channel 1. Example: You wish to bridge the
Rev 04.08.021
- 16 –
Download from Www.Somanuals.com. All Manuals Search And Download.
output of the CV2502 to create a Mono 70V output at 500 Watts. Connect the positive (+) lead from the
distributed load to the 35V connector on Channel 2, and connect the negative (-) lead from the distributed
load to the 35V connector of Channel 1. Be sure that the sum of the output to each of the speakers on the
distributed load is less than 500 watts. (See Figure 8) It is also necessary to connect the commons
together when bridging a distributed load.
Caution: A 4 ohm mono load should not be connected to the CV Series amplifier in the bridged
mode, but you can use the parallel mono configuration with a 4 ohm load.
The table below lists the recommended “Bridged Mono” connections for a CV Series Dual Channel
amplifier using Class 2 Wiring. The user should note that it is possible to bridge the 70 V and 100V
terminals, however Class 1 Wiring should be observed. All outputs will be 500 watts on the example
amplifier CV2502. (See Table 2 below)
Bridged Mono Connections
(-)
CH 1
4 ohm 4 ohm -------------------
(+)
CH 2
Connect to
Bridged Load
8 ohm load
8 ohm 8 ohm ------------------- 16 ohm load
Note!
25V
35V
50V
70v
25V -------------------
35V -------------------
50V -------------------
70V -------------------
100V -------------------
50V load
70V load
100V load
140V load
200V load
Class 2 wiring Approved
Note!
100V
Class 1 Wiring Required
Table 2
(+) 8 Ohm Mono Load (-)
(+) 70V Mono Load (-)
Figure 8
Rev 04.08.021
- 17 –
Download from Www.Somanuals.com. All Manuals Search And Download.
Important Note: When bridging the CV Series amplifier at one of the distributed voltage outputs, it is
necessary to connect the Common connections for the distributed voltages together. The commons on
the secondary side of the output transformers are floating. This is not true for the low-impedance
outputs. Their respective commons are connected internally.
Power Sequencing
A three pin Euro style terminal and mating connector are supplied with each amplifier to allow
the amplifier power to be sequenced ON or OFF remotely. These terminals are located on the
rear panel of the amplifier. The three terminals are from left to right, the “Ground, Send and
Receive. (See Figure 9)
When used with more than one amplifier the “SEQUENCE” feature will turn ON or OFF the
amplifiers sequentially at about 0.5 second intervals, preventing a large turn on surge though
the AC mains supply that could possibly cause disruption of the flow of current through the AC mains.
Note: Use a remote supply of 12 to 15 VDC. Maximum current required is 20mA at turn-on,
drops to ~1mA after amp turns on.
Important NOTE: The SEND terminal on the Sequence connector has a +15Vdc potential
whenever the amplifier is “ON”. The User should take caution not to short this terminal to
‘Chassis Ground”. The +15Vdc supply, internal to the amplifier, could be damaged.
Turning A Single Amplifier ON / OFF
First, place the CV amplifier’s power switch in the Standby (fully down) position. Connect the positive side of a
5to15VDC >20mA supply to the “RCV” terminal of the SEQUENCE connector. Connect the negative side of the
supply to the “GROUND” terminal
of the sequence connector.
As long as the DC voltage is
present the amplifier will remain on.
Opening the circuit at the
“SEQUENCE” connectors
interrupts the DC voltage, and the
amplifier will turn off. If a switch is
used to control the “SEQUENCE”
circuit, it should be a SPST (single
pole single throw) switch, not a
momentary contact closure. A
control device such as a contact
closure contained within a system
such as Creston®, AMX® or
Panja®, as examples, can be used
to remotely control the Power
Figure 10
ON/OFF function of the amplifier.
The contact closure must be a
latching type and not a momentary
contact closure.
Sequencing Multiple Amplifiers ON / OFF
When using multiple amplifiers that utilize the “SEQUENCE” feature of the CV Series amplifiers, connect the
amplifiers in the following manner. Starting with the first amplifier in the sequence to be turned on, connect the
positive side of a 5 to15 VDC >20mA supply to the “RCV” terminal. Next connect a wire from the “SND” terminal
of the first amplifier to the “RCV” terminal of the next amplifier to be turned on. Continue in this manner until all
Rev 04.08.021
- 18 –
Download from Www.Somanuals.com. All Manuals Search And Download.
amplifiers in the sequence are connected. Connect the negative side of the DC supply to the chassis ground
terminal. If the amplifiers are mounted together in a rack where a common AC Ground connects the chassis
grounds together through common connection via the metal rack rail, no other connections should be required.
(See Figure 10) If this is not the case, simply connect all of the “Chassis Ground” terminals together. (See Figure
11) Place the CV amplifiers’ power switches in the Standby (fully down) position.
To remotely begin the sequencing function, close the circuit, and supply the DC voltage to the “RCV” receive pin
on the first amplifier and the subsequent amplifiers should turn on at 0.5 second intervals. Please note that the
front panel “Power Switch” should be in the “Standby” position on all of the amplifiers in this group. When the DC
voltage is interrupted, the amplifiers will then turn OFF. If there are signal processing and input source devices in
the system, they should be turned ON before the amplifiers are “sequenced” ON, and these same devices should
be powered down after the amplifiers are “sequenced” OFF. This will avoid large transient thumps being passed
to the loudspeakers attached to the system.
When using multiple amplifiers that utilize the
“SEQUENCE” feature of the CV Series amplifiers,
and you would like to power them ON, but remote
operation is not required, you do not need the DC
Voltage to activate the “Sequence” function. Simply
connect the “SND” send terminal of the first
amplifier to the “RCV” receive terminal of the next
amplifier and so on. (See Figure 12) The front
panel Power Switch of the first amplifier will activate
the “SEQUENCE” function when switched to the
ON position. All other front panel “Power Switches”
should be in the “Standby” position for the
12VDC
Supply
“SEQUENCE” function to operate properly. Again,
if the amplifiers are mounted together in a rack
where a common AC Ground connects the chassis
grounds together through common connection via
the metal rack rails, no other connections should be
required.
Figure 11
Ground Test Procedure
When mounting the amplifiers in a common rack,
you should verify if the amplifiers’ chassis are
sharing a common ground via the rack rails. To do
this use a DMM (Digital Multi-Meter) to measure
the DC resistance between the rack rail and the
chassis ground of each unit. Set the DMM to
measure DC resistance. Connect one probe to the
rack rail and the other to the Chassis Ground
terminal on the SEQUENCE terminal of the CV
Series amplifier. If the DC resistance is greater
than 0.2 ohms we recommend that you connect the
chassis ground terminals of the sequence
connector together in a daisy chain as in Figure 12.
Repeat this for each CV Series amplifier in the
rack.
If there is less than a 0.2 ohm resistance from the
rail to the chassis ground of each unit you do not
have to daisy chain the chassis grounds together.
Let the rack rail be your chassis ground path.
Figure 12
Rev 04.08.021
- 19 –
Download from Www.Somanuals.com. All Manuals Search And Download.
Using Other Amplifiers in the Power Sequence
The Carver pm700, pm950, pm1400, pt1800 and pt 2400 can be use together with the CV Series amplifiers in a
“Sequenced” configuration. However, as the Sequence Terminal on the pm Series has no Chassis Ground
connector, whenever this manual references the chassis ground connector you should replace it with some
reliable ground connection point on the PM series amplifier chassis such as a screw that is used in fastening the
chassis parts together. A good example would be the screws that retain the input modules to the amplifier
chassis.
All other connections would be exactly as described in this discussion of sequencing hook-up procedures. For
operational details regarding the Carver pm Series and pt Series amplifiers, please consult their respective
user guides provide with the amplifiers.
Use of the Remote Level Control Connector
A four position Euro connector furnishes contact points for the use of several “Remote Level” options. When
using the “Remote Level” option, you should keep in mind that the front panel level controls act as a master level
control. The “Remote Level” control will perform as an attenuator from the preset level set by the front panel level
adjustment. Once the master level has been set the front panel level control knob(s) may be replaced with the
plastic snap-in buttons supplied with the CV Series amplifier. (See figure 13)
You may choose to use one of the accessory remote level controls offered by Carver Professional, or you may
elect to fashion your own in a custom panel of your design. Regardless of your decision the way that these
devices connect to the CV Series amplifier is the same.
Use a 5kΩ to 10kΩ potentiometer, preferably a reverse log taper. The nature of the taper
will define the manner in which the control responds. A reverse log taper will give you the
type of action that you would normally expect when adjusting the level of a radio or other
conventional electronic audio device. In contrast, a linear taper will seem to have little or
no effect in the first half of its rotation. This is because it is varying at a linear rate, and at
or near full attenuation the effect is not notice until you achieve a level that is within the
sensitivity of the loudspeaker connected to the amplifier, or at least exceeding the existing
noise floor.
Figure 13
Identify the terminal of the pot to which the wiper is connected when the pot is set to the fully clockwise position.
Connect this terminal to the RTN (ground return) terminal of the “Remote Level” input connector. (See figure 14)
0.5Ω
Ω
Figure 14
Figure 15
Connect the center terminal of the pot to CV1 or CV2 (control voltage terminal) of the “Remote Level” input
connector, depending on which channel you intend to adjust remotely. In the case of a dual channel CV Series
amplifier, the two channels are independently controlled by their respective control voltages applied to the CV1
Rev 04.08.021
- 20 –
Download from Www.Somanuals.com. All Manuals Search And Download.
and CV2 terminals. If you wish to control both channels simultaneously, using the remote control as a master
level control and the front panel level controls as balance adjustments, both control inputs may be connected
together and driven off the wiper of a single pot. (See figure 15) An example of this application would be in a
system where the CV Series amplifier is being used to reproduce stereo information, and keeping two level
controls synchronized during adjustment would be difficult.
"CH1 Level"
"CH2 Level"
R3
330
R1
R2
5kC
5kC
D1
"Amp On"
RED
RTN
C2
C1
+5V
Figure 16
Connect the remaining terminal of the pot (full counter-clockwise position) to the +5V terminal of the “Remote
Level” input connector.
This connection will set the control voltage to 0V with the pot rotated fully clockwise (sets maximum level), 5V with
the pot rotated fully counter-clockwise (sets minimum level), and allow smooth variation between these extremes.
The VCA (voltage controlled amplifier) within the CV Series amplifier uses control information from the “Remote
Level” input terminals in the flowing manner:
1) A 0V control voltage corresponds to 0dB added attenuation (added to the attenuation already set by the
front panel Level control for that channel).
2) A 5V control voltage corresponds to 100dB added attenuation.
3) The control voltage effect is “dB linear”; a 2.5V control voltage input will add 50dB of attenuation.
4) The control characteristic is –1dB per 50mV of control voltage.
As an added bonus, low current loads, such as an LED, may be connected between the +5V and RTN terminals.
This may be useful if one desires a visual indication that the CV Series amplifier is powered ON. The +5V at the
“Remote Level” terminals turns on and off with the amplifier. (See figure 16)
Wiring Requirements for Remote Level Control Applications
For best results, use 24AWG or larger control wiring, especially for the +5V and RTN connections. Since 24AWG
wire has DC resistance of 25mΩ per foot, using 1000 feet of 24AWG (loop resistance of 50Ω total) to make
connection to a 5kΩ potentiometer will result in a 1% voltage drop, which causes a reduction in control
voltage range. This voltage drop increases as more current is carried by the +5V and RTN conductors,
i.e. when the 5V line is used to light a remote LED indicating that the amp is ON. In the (extreme) example given
above, an additional 10mA load on the +5V and RTN conductors will cause 10% reduction in control voltage
range, yielding lower maximum level and higher minimum level. Within reason, conductor capacitance is not a
problem since the control voltages are averaged in the amplifier and any additional RC delay will not be
noticeable.
Note: do not connect the RTN conductor to a ground reference at the remote control location.
Ground potential differences will drive currents through the RTN line and cause unpredictable
remote level control performance.
Rev 04.08.021
- 21 –
Download from Www.Somanuals.com. All Manuals Search And Download.
Using Third Party Control Systems
Other manufacturers such as Crestron®, AMX® and PANJA® supply systems frequently used to provide a
centralized control platform for A/V Systems. A voltage ramp provided by one of these manufacturers, and
controlled by their system can be used to adjust level on the CV Series amplifiers. Apply a control voltage from
the external source of the desired control system to the “Remote Level” input terminal. This voltage may be
applied to either or both of the CV1 and CV2 input terminals. Connect the control voltage reference or common to
the RTN contact on the “Remote Level” input terminals. The –1dB per 50mV control characteristic mentioned
above applies in this application, as well. Externally supplied control voltages should not exceed 15VDC with
respect to the RTN terminal. Voltages in excess of 15VDC could possibly damage the “Remote Level” input
circuitry.
Note: Voltages in excess of 5V applied to CV1 or CV2 will not result in attenuation greater than 100dB.
Note: You should keep in mind that the front panel level adjustments act as master level controls when
using the remote level.
Effects Loop
When using the Effect Loop “EFX” to daisy chain signals to another amplifier, we recommend that you connect
the unbalanced “SND” Terminals of the effects loop to the next amplifier’s input module, do not use the “RCV”
terminal of the “EFX” loop. If daisy chaining to multiple amplifiers this should prevent the loss and degradation of
the signal as the number of the daisy chained amplifiers grows. (See Figure 16)
By connecting the amplifier in this manner, you can also take advantage of the effects loop as a signal processing
loop. Note that the signal from the original input to the first amplifier is delivered to the “SND” terminal of the
“EFX” loop as an unbalanced output. From there it can be split to go to the input module of another amplifier as
well as back into the “EFX” loop. The next amp receives a clean signal except for any processing that may have
occurred in the previous amplifier.
The “RCV” terminal of the “EFX” loop should only be use when the effects
loop is being used to accommodate outboard signal processing. This signal
should be local to the amplifier. The quality of the “differential” amp in this
feature is such that if long signal paths are used loss of signal quality should
be expected. If signals are being sent to the amplifier over a long distance,
we recommend that you use the amplifier’s input module, which offers
greater common mode noise rejection.
Figure 17
CV SeriesBlock Diagram
17Hz HPF
INPUT MODULE
120Hz HPF
electronic
sw itch
electronic
sw itch
electronic
sw itch
VCA Section
SIGNAL
INPUT
Signal to
Amp Output
Stage
80Hz HPF
EFFECTS
SEND -
ALWAYS
HOT!
Master Level,
Remote Level
Control Voltage
Input
CV AMPLIFIER
SIGNAL PROCESSING BLOCK DIAGRAM
Heil 11.21.00
ONE CHANNEL SHOW N
EFFECTS
RECEIVE
configuration
DIP switch
Rev 04.08.021
- 22 –
Download from Www.Somanuals.com. All Manuals Search And Download.
WARRANTY INFORMATION
CV Series Power Amplifiers: 5 Years
CV Series Modules and Accessories: 1 Year
NOTE: The following warranty is exclusive to the United States and its possessions and territories.
Please see your Carver Professional dealer or distributor for the correct warranty information in your area
or locale.
WHAT IS COVERED:
THIS WARRANTY COVERS DEFECTS IN MATERIAL AND WORKMANSHIP ONLY. This limited Warranty DOES NOT
extend to: 1) damage caused by shipment, 2) damage caused by accident, misuse, abuse, failure to perform owner
maintenance, or operation contrary to the instructions in the Carver Professional owner’s manual, 3) units on which the serial
number has been defaced, modified or removed and 4) damage resulting from modification or attempted repair by any other
person than authorized by Carver Professional.
WHAT WE WILL PAY FOR:
Carver Professional will pay all labor and material expenses for items covered under this Limited Warranty. See the next
section concerning shipping charges.
WHAT YOU MUST DO TO OBTAIN WARRANTY SERVICE:
In the event your Carver Professional product requires service, contact your Carver Professional Authorized Dealer /
Contractor or contact Carver Professional (ATTN: Customer Service Dept.) 9300 North Decatur, Portland, OR 97203, or call
Customer Service Department directly at (503) 978-3343. You will be directed to an Authorized Carver Professional Service
Station or receive instructions to ship the unit to the factory. Please save the original carton and packing materials in case
shipping is required. Please do not ship parcel post. Include a complete description of the problem, the associated
components and connections, and a copy of the purchase receipt. Carver Professional does not pay initial shipping costs.
Return shipping costs will be pre-paid if repairs were covered by the scope of this warranty.
YOU MUST RETAIN AND PROVIDE YOUR SALES RECEIPT TO OBTAIN COVERAGE UNDER THIS LIMITED
WARRANTY.
The warranty period begins from the date of the first consumer purchase from an Authorized Carver Professional Dealer. Any
implied warranties for merchantability and fitness for a particular purpose required by any state law are limited in duration to
the warranty period of your product. The warranty set forth above is exclusive and no other, written or oral is expressed or
implied. Carver Professional specifically disclaims the implied warranties and merchantability and fitness for a particular
purpose.
EXCLUSION OF CERTAIN DAMAGES:
In no event shall Carver Professional be liable for property damage, or any other incidental or consequential damages, which
may result from failure of this product. If your Carver Professional product proves defective in material or workmanship, the
liability of Carver Professional shall be limited to the repair or replacement, at the option of Carver Professional, of any
defective part.
STATE LAWS MAY DIFFER:
Some states do not allow limitations on how long an implied warranty lasts and/or do not allow the exclusion or limitation of
incidental or consequential damages, so the above limitations may not apply to you. This warranty gives you specific legal
rights, and you may have other rights, which vary, from state to state.
OTHER IMPORTANT PROVISIONS:
Carver Professional reserves the right to make changes in design and improvements to its products without the responsibility
of installing such changes or improvements on products previously sold by Carver Professional. We suggest that you attach
your purchase receipt to this Warranty and keep both documents in a safe place. Thank you for your choice of a Carver
Professional Amplifier.
Rev 04.08.021
- 23 –
Download from Www.Somanuals.com. All Manuals Search And Download.
CARE AND SERVICE ASSISTANCE
Care: Wipe off the CV Series Amplifier’s front panel and chassis from time to time, with a soft, dry cloth. If
you have something stubborn to remove, use a mild dish soap or detergent sparingly applied to a soft cloth.
Don’t use alcohol, ammonia or other strong solvents.
Service Assistance: We suggest that you read the Limited Warranty completely to fully understand your
warranty/service coverage. Please promptly complete and return the Warranty registration card. Also, be
sure to save the sales receipt in a safe place. It will be necessary for warranty service. If your Carver
Professional product should require service, you may contact the Carver Professional Technical Service
Department by calling (503) 978-3343 or by
writing to us at the Factory address found on page 25. We will then direct you to the nearest in our national
network of Authorized Warranty Service Centers, or give you detailed instructions on how to return the
product to us for prompt action. If you should have questions or comments, please write to the Factory
http://www.carverpro.com. Please include the model and serial number of your Carver Professional product,
your complete address and daytime phone number.
IN CASE OF DIFFICULTY
If you are having trouble, or suspect a problem with your CV Series amplifier, try some simple troubleshooting
before contacting an Authorized Carver Professional Dealer, Authorized Carver Professional Service Center
or Carver Professional Technical Service. Below are listed some general problems and items that should be
checked in an attempt to resolve the difficulty.
No Sound, No Power
This is usually an indication of a power supply problem in either the power line itself or the amplifier’s power
supply. Check the following:
1) CV Series amplifier’s power is switched off.
2) Line cord is disconnected.
3) Poor fit between the plug and AC receptacle.
4) Power off at AC receptacle (check with tester or lamp).
5) The amplifier is plugged into a switched outlet. Verify that the outlet is live.
6) CV Series amplifier’s fuse has blown. This amplifier contains no user serviceable fuses.
7) The thermal breaker in the power transformer has opened. Allow amplifier to cool and the breaker will
reset itself.
Power On, Low Output or No Output
Low or no output problems are usually signal-source, bad cable or partial output short circuit related.
1) The input level controls are set too low.
2) Move the input connection to another amplifier that you know is working to verify that it is not a source
problem.
3) Check speaker connections. Be sure that there are no small strands of wire touching similar strands
coming from the other wire in the cable.
4) Make sure the speakers are functioning correctly.
5) If you are using bridged-mono mode, ensure that the Output Configuration Jumpers are set correctly.
6) Use a voltmeter to determine if the power line voltage is dropping excessively when the amplifier is driven
hard.
Playback Is Mixed with Hum
1) Check or replace the connecting cables, between source and amplifier’s input.
2) Make sure that each screw terminal connection is tight.
3) Signal cables may have been routed too closely to the AC cables, power transformers, motors or EMI
inducing device.
4) Try connecting another source to the power amplifier inputs. If the hum stops, the problem lies with the
original source component.
Rev 04.08.021
- 24 –
Download from Www.Somanuals.com. All Manuals Search And Download.
Distortion
Distortion is usually caused by excessive loss in the input controls (the mixer/equalizer/crossover cannot
produce enough output), overdriving resulting in output clipping, or current limiting caused by excessively low
load impedance.
1) Check the setting of the input level controls. If set too low, the preceding piece of equipment may not
have sufficient output to overcome the loss.
2) Check the speaker connections and verify that all screw connections are tight and that there are no stray
strands of wire to cause short circuits.
3) Verify that the total load impedance presented to the amplifier is within the limits described in this manual
for mode of operation selected.
Carver Professional
Service Department
9300 North Decatur
Portland, Oregon 97203
Phone 503.978.3343 • Fax 503.978.3302
OR
Carver Professional
Customer Support
9300 North Decatur
Portland, Oregon 97203
Phone 503.978.3344 • Fax 503.978.3302
Carver Professional reserves the right to improve its products at any time. Therefore, specifications are subject to change without notice.
Rev 04.08.021
- 25 –
Download from Www.Somanuals.com. All Manuals Search And Download.
Appendix “A”
Power Consumption for CV Series Amplifiers
CV Series AC Power Considerations
1kHz Sine Wave @ Full Rated Power into 4 Ohm Autoformer Winding
Model
CV1501
CV2501
CV1502
CV2502
CV4002
100vAC (50Hz)
250 Watts / 3 Amps
100vAC (60Hz)
249 Watts / 2.98 Amps
378 Watts / 4.73 Amps
463 Watts / 5.6 Amps
773 Watts / 9.2 Amps
1230 Watts / 14.9 Amps
120vAC (60Hz)
249 Watts / 2.5 Amps
395 Watts / 4.09 Amps
467 Watts / 4.7 Amps
800 watts / 7.9 Amps
230vAC (50Hz)
244 Watts / 1.28 Amps
368 Watts / 2.14 Amps
442 Watts / 2.5 Amps
775 Watts / 4.09 Amps
380 Watts / 4.78 Amps
463 Watts / 5.6 Amps
794 Watts / 9.4 Amps
1230 Watts / 14.9 Amps
1216 Watts / 12.4 Amps 1207 Watts / 6.58 Amps 60 Hz
Psuedo Pink Noise @ 1/3 Rated Power into 4 Ohm Autoformer Winding
Model
CV1501
CV2501
CV1502
CV2502
CV4002
100vAC (50Hz)
101 Watts / 1.35 Amps
150 Watts / 2.1 Amps
172 Watts / 2.35 Amps
296 Watts / 3.9 A
100vAC (60Hz)
98.5 Watts / 1.3 Amps
148 Watts / 2.06 Amps
170 Watts / 2.3 Amps
285 Watts / 3.7 Amps
488 Watts / 6.45 Amps
120vAC (60Hz)
101 Watts / 1.13 Amps
153 Watts / 1.75 Amps
180 Watts / 1.89 Amps
308 Watts / 3.3 Amps
448 Watts / 4.92 Amps
230vAC (50Hz)
101 Watts / 588mA
153 Watts / 1.09 Amps
179 Watts / 1.28 Amps
289 Watts / 1.69 Amps
470 Watts / 2.7 Amps 60 Hz
488 Watts / 6.45 Amps
1kHz Sine Wave @ Full Rated Power, Isolated Output Winding
Model
100vAC (50Hz)
295 Watts / 3.4 Amps
393 Watts / 4.85 Amps
552 Watts / 6.6 Amps
919 Watts / 10.5 Amps
1500 Watts / 18.1 Amps
100vAC (60Hz)
293 Watts / 3.4 Amps
389 Watts / 4.78 Amps
549 Watts / 6.5 Amps
919 Watts / 10.5 Amps
1500 Watts / 18.1 Amps
120vAC (60Hz)
289 Watts / 2.88 Amps
501 Watts / 5.05 Amps
566 Watts / 5.62 Amps
905 Watts / 8.97 Amps
1450 Watts / 14.5 Amps
230vAC (50Hz)
290 Watts / 1.49 Amps
372 Watts / 2.14 Amps
530 Watts / 2.9 Amps
908 Watts / 4.7 Amps
CV1501 25v tap
CV2501 25v tap
CV1502 25v tap
CV2502 25v tap
CV4002 35v tap
Psuedo Pink Noise @ 1/3 Power, Isolated Output Winding
Model
100vAC (50Hz)
119 Watts / 1.55 Amps
155 Watts / 2.15 Amps
211 Watts / 2.79 Amps
339 Watts / 4.25 Amps
575 Watts / 7.5 Amps
100vAC (60Hz)
119 Watts / 1.55 Amps
155 Watts / 2.15 Amps
208 Watts / 2.7 Amps
339 Watts / 4.25 Amps
575 Watts / 7.5 Amps
120vAC (60Hz)
116 Watts / 1.29 Amps
163 Watts / 1.84 Amps
225 Watts / 2.4 Amps
342 Watts / 3.7 Amps
765 Watts / 8.1 Amps
230vAC (50Hz)
117 Watts / 0.666 Amps
154 Watts / 1.05 Amps
210 Watts / 1.41 Amps
330 Watts / 1.9 Amps
CV1501 25v tap
CV2501 25v tap
CV1502 25v tap
CV2502 25v tap
CV4002 35v tap
Rev 04.08.021
- 26 –
Download from Www.Somanuals.com. All Manuals Search And Download.
Appendix “B”
Input Sensitivity
Jumpers 101 and 102 on the standard input module’s PCB are used to set the Input Sensitivity of the amplifier
for each channel or zone. The output level of the input source determines the setting. Since, each channel or
zone may have a different input source, it is acceptable to have these jumpers set differently according to the
potential output level of the input source. The figure below show the correct jumper setting for an input sensitivity
of 0.775VRMS or 1.5VRMS
.
Caution! Before removing the module to change input sensitivity or to set Bridged Mono, Parallel Mono
or Normal operating modes, make certain that the amplifier’s AC mains are first switched OFF.
Bridged, Parallel, Normal Settings
Jumper 100 on the standard input module’s PCB is used to configure the Standard Input Module and the
amplifier in which it resides to operate in Normal, Bridged Mono or Parallel Mono modes. It is imperative that the
module be configured to the operational mode desired before making the loudspeaker connections. Configuration
of the jumpers should only be done with the amplifier’s power OFF. The figure below shows the correct jumper
placement for each of the three modes of operation.
Bridged
Mono
Parallel
Mono
Normal
JP100
CONFIGURATION
Caution! Before removing the module to change input sensitivity or to set Bridged Mono, Parallel Mono
or Normal operating modes, make certain that the amplifier’s AC mains are first switched OFF.
Rev 04.08.021
- 27 –
Download from Www.Somanuals.com. All Manuals Search And Download.
|