IMPORTANTES INFORMATIONS DE SÉCURITÉ ....................... 23
INSTRUCTIONS DE RÉPARATION IMPORTANTES ....................... 23
DESCRIPTION ....................... 24
DÉBALLAGE ET GARANTIE ....................... 25
REMARQUES SUR L’INSTALLATION ....................... 25
FACE AVANT ....................... 26
PANNEAU ARRIÈRE ....................... 27
INPUT A / INPUT B ....................... 27
PARALLEL ....................... 27
SORTIE DE AMPLI DE PUISSANCE ....................... 28
GROUND-LIFT ....................... 28
ENTRÉE SECTEUR ....................... 28
SECTEUR ET TEMPÉRATURE RÉSULTANTE ....................... 29
SPECIFICATIONS ....................... 30
BLOCK DIAGRAM ....................... 31
DIMENSIONS ....................... 32
2
IMPORTANT SAFETY INSTRUCTIONS
The lightning ash with arrowhead symbol, within an
equilateral triangle is intended to alert the user to the
presence of uninsulated „dangerous voltage“ within
the product’s enclosure that may be of sufcient
magnitude to constitute a risk of electric shock to
persons.
The exclamation point within an equilateral triangle
is intended to alert the user to the presence of
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Clean only with a dry cloth.
7. Do not block any ventilation openings. Install in accordance with the manufactures instructions.
8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus
(including ampliers) that produce heat.
9. 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 t into your outlet, consult an
electrican for replacement of the absolete outlet.
10. Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.
11. Only use attachments/accessories specied by the manufacturer.
12. Unplug this apparatus during lightning storms or when unused for long periods of time.
13. Refer all servicing to qualied 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.
14. Do not expose this equipment to dripping or splashing and ensure that no objects lled with liquids, such as vases,
are placed on the equipment.
15. To completely disconnect this equipment from the AC Mains, disconnect the power supply cord plug from the AC
receptacle.
16. The mains plug of the power supply cord shall remain readily operable.
important operating and maintance (servicing)
instructions in the literature accompanying the
appliance.
IMPORTANT SERVICE INSTRUCTIONS
CAUTION:These servicing instructions are for use by qualied personnel only. To reduce the risk of electric shock, do not perform any servicing other than that ontained in the Operating
Instructions unless you are qualied to do so. Refer all servicing to qualied service personnel.
1. Security regulations as stated in the EN 60065 (VDE 0860 / IEC 65) and the CSA E65 - 94 have to be obeyed when
servicing the appliance.
2. Use of a mains separator transformer is mandatory during maintenance while the appliance is opened, needs to be
operated and is connected to the mains.
3. Switch off the power before retrotting any extensions, changing the mains voltage or the output voltage.
4. The minimum distance between parts carrying mains voltage and any accessible metal piece (metal enclosure),
respectively between the mains poles has to be 3 mm and needs to be minded at all times. The minimum distance
between parts carrying mains voltage and any switches or breakers that are not connected to the mains (secondary
parts) has to be 6 mm and needs to be minded at all times.
5. Replacing special components that are marked in the circuit diagram using the security symbol (Note) is only
permissible when using original parts.
6. Altering the circuitry without prior consent or advice is not legitimate.
7. Any work security regulations that are applicable at the location where the appliance is being serviced have to be
strictly obeyed. This applies also to any regulations about the work place itself.
8. All instructions concerning the handling of MOS - circuits have to be observed.
SAFETY COMPONENT ( MUST BE REPLACED BY ORIGINAL PART )NOTE:
3
5
DESCRIPTION
Congratulations! With buying an Electro-Voice CP-Series power amplier you have chosen a state-ofthe-art appliance that employs most advanced technology.
CP-Series power amps combine outstanding audio performance, highest reliability and operational
safety.
The audio performance of CP-Series power amps are simply extraordinary. The new switchmode power
supply technology, completely designed from scratch and the consistent use of Class-H technology
provide extensive headroom far above the stated nominal output and conspicuous reduction in leakage
power at the same time.
The employed switching power supply combines the headroom-advantage of a transformer power
amplier with low weight of a pulsed power supply unit resulting in an improved performance-to-weight
ratio. Special attention had been given to high efciency and interference immunity already in the
designing stage with the result that trouble-free operation of CP-Series power amps is possible even in
EMV-critical environments.
The power amplication stages of the CP3000S follow Class-H technology design, i.e. the power
amp provides extremely fast, signal-dependent operating voltage switching, which, results in doubling
the regular supply voltage when needed. Compared to Class-AB power amps, Class-H power amps
generate by far less power dissipation at identical output. Consequently, reduced leakage power or
dissipation is synonymous to less waste heat. In other words: energy is used more efciently! As a result,
installing Class-H power amps within rack shelf systems is possible with less space between appliances.
In addition to that and despite offering identical output, power consumption is a lot less than in Class-AB
operation.
Being protected against thermal and electrical overload, short circuit and the occurrence of HF/DC at
the outputs, Electro-Voice CP-SERIES power amps fulll even the most demanding requirements of
Pro-Audio touring applications. Back-EMF-Protection eliminates the risk of the output transistors being
damaged by electrical energy back-feed. The power outputs are switched via relay with a time delay
during soft-start and an inrush current limiter additionally prevents mains fuses from blowing.
Mechanical construction and workmanship also comply with the highest precision manufacturing
standards. The robust chassis is extremely rigid which makes it especially suitable for wearing
touring applications. Two three-speed high performance fans (off/slow/fast) guarantee outstanding
thermal stability at absolute low running noise. Front-to-rear ventilation allows trouble-free operation
even in smaller amp-racks. The electronically balanced inputs are carried out via XLR-type
connectors. Direct-Outs for through connecting the audio signal are also provided via XLRM-type
connectors. Input Routing allows selecting DUAL (stereo) or PARALLEL (monaural) operation
mode. By means of the separate BRIDGED OUT-connector and a Bridged Mode-switch, switching
to “Mono Bridged” operation is truly uncomplicated as well. The recessed mounted dB-scaled level
controls ensure reliable protection against mechanical damage. These particularly precise, secure
to operate detent-potentiometers are located on the front panel. CP-Series power amps provide the
opportunity for retrotting an internal analogue signal processor board with x-over and lter functions.
The easily readable LED display provides a quick overview of the power amp’s current operational
status. The power outputs CHANNEL A, CHANNEL B and BRIDGED OUT are carried out as extremely
durable SPEAKON-type connectors. Also located on the rear panel is a Ground-lift switch, which, when
needed, helps eliminating ground-noise loops by separating the power amp’s enclosure from the circuit
ground. In normal operation, all CP-Series power amps are capable of driving loads as low as 2ohms. In
Mono-Bridged mode the allowable minimum load is 4ohms.
This owner’s manual outlines and explains several other features of your CP-SERIES power amplier.
Please, make sure to carefully read all of it and mind the instructions.
4
DESCRIPTION
UNPACKING & WARRANTY
Carefully open the packaging and take out the power amplier. Next to the power amplier itself, the
package also includes this owner’s manual, a mains cord and the warranty certicate. Keep the original
invoice, which states the purchase/delivery date together with the warranty certicate at a safe place.
INSTALLATION NOTES
Generally, installing or mounting CP-Series power amps should be carried out in a way that guarantees
continuously unopposed front-to-rear air circulation. Installation of appliances with opposite air circulation
within one cabinet or closed rack shelf system is not recommendable. When including appliances in a
closed cabinet or rack shelf system make sure to provide sufcient ventilation. Leave a gap of at least
60mm x 330mm (up to the cabinet’s top ventilation louvers) for air circulation between the rear of the
power amplier and the cabinet’s/rack’s rear inner wall. Make sure to leave at least 100mm of space
above the cabinet or rack shelf system. Since temperatures inside of the cabinet or rack shelf system
can easily rise up to 40°C during operation, bearing in mind the maximally allowable environmental
temperatures for all other appliances installed in the same rack shelf system is mandatory (also refer to
“MAINS OPERATION AND RESULTING TEMPERATURE”).
Caution: For trouble-free operation exceeding the maximally allowable environmental
temperature of +40°C is not permissible.
To prevent the front panel from bending, the use of installation rails or optionally available “rear-rackmount” rails is obligatory when installing the appliance in a rack shelf system or cabinet.
The power amplier has to be protected against: dripping or splashing water, direct sunlight, high
temperatures or direct inuence of heat sources, high humidity, extensive dust and vibrations.
If guaranteeing the listed requirements is not possible on a long-term basis, regular servicing is
absolutely mandatory to prevent the power amplier from possible failure, mainly being caused by
negative environmental effects.
Condensation on internal parts may occur when transporting the power amplier from a cold into a
warmer environment. In that case operation is only permissible after the appliance has gained the new
temperature (after approximately one hour). If foreign objects or liquids have entered the power amp’s
enclosure, make sure to immediately separate the appliance from the mains power and contact an
authorized service center for inspection before continuing operation.
FCC INFORMATION (U.S.A)
1. IMPORTANT: Do not modify this unit! Changes or modications not expressly approved
by the manufacturer could void the user`s authority, granted by the FCC, to operate the
equipment.
2. NOTE : This equipment has been tested and found to comply with the limits for a Class
B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference in a residential installation.
This equipment generates, uses and can radiate radio frequency energy and, if not
installed and used in accordance with the instructions, may cause harmful interference
to radio communications. However, there is no guarantee that interference will not occur
in a particular installation. If this equipment does cause harmful interference to radio
or television reception , which can be determined by turning the equipment off and on,
the user is encouraged to try to correct the interference by one or more of the following
measures:
• Reorient or relocate the receiving antenna
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
5
7
FRONT PANEL
Use the POWER switch located on the front panel to power-on the appliance. The soft-start function
protects against current inrush peaks on the mains, which in addition prevents the mains line protection
switch from activating during power-on. The loudspeaker outputs are activated via relay switching with
a delay of approximately 3 seconds to efciently attenuate eventual power-on noise. The PROTECT
LED lights during the delay time and the fans run at maximum speed. This is normal, conrming the
immaculate operation of the protection circuitry.
This indicator lights when the power amplier has been switched on. Causes for
the POWER-indicator not lighting are: the appliance is not connected to the mains
network or a defective primary fuse.
The PROTECT LED lights indicating that one of the internal protection circuits
against thermal overload, short-circuit, Back-EMF, HF-occurrence at the output,
etc., has been activated. The output relays interrupt the connected loads from
the power amps while input signals are interrupted as well, preventing the connected
loudspeaker systems and the power amplier itself from being damaged.
Whatever caused the fault – e.g. a short-circuited speaker cable – needs to be
remedied. In case of thermal overload you have to wait until the power amplier
automatically regains normal operation.
The SIGNAL LED lights as soon as an audio signal of approximately 30dB below full
modulation is present at the output. The LED is dimmed when speaker cables are
short-circuited or a protection circuit has been activated.
The 0dB LED lights whenever the power amplier is driven at its limits. Higher input
voltage does not result in higher peak output voltage. In addition, the 0dB indicator
comes in handy when adjusting external limiters.
This indicator lights as soon as the integrated dynamic audio signal limiter is activated and the power amplier is driven at the clipping limit or generally at its maximum capacity. Short-term blinking is not a problem, because the internal
limiter trims input levels of up to +21dBu down to an S/N-ratio of approximately 1%.
If, on the other hand, this LED lights constantly, reducing the volume is
recommended to prevent the loudspeaker systems connected from being damaged
by probable overload.
Detent potentiometers scaled in dB (steps of 1dB) for
adjusting the power amp’s overall amplication. To prevent
distortion in mixing consoles connected to the amp, setting
these controls to a value between 0dB and -6dB is generally
recommended. The dB-scale provides direct indication of the
control attenuation applied to the xed internal amplication.
6
REAR PANEL
INPUT A / INPUT B
The inputs INPUT A & INPUT B are electronically balanced
offering input sensitivity of +5.8dBu (1.51V) for direct
connection of mixing consoles, signal processors, etc.
The XLR-type connectors OUTPUT A & OUTPUT B are pre-
pared for „through-connecting“ input signals to additional external power amps. The input signal is directly routed to these
output connectors. There are no repeaters or other electronic
components within that signal path. Accordingly, input and output connectors of the corresponding
channel are interconnected in parallel, offering permanent electrical connection, without regard to the
setting of the Power-ON switch.
Although having XLR-type output connectors, some mixing console models provide unbalanced
output connection only. When using mixers with unbalanced outputs, bridging PIN1 and PIN3
of the power amp’s input connectors or leaving PIN3 of the cable’s plugs unconnected is
necessary. Otherwise, when feeding in unbalanced audio signals via PIN3 (b, -, „cold“) and PIN2
(a, +, „hot“), strange humming and HF-interference may occur, which very likely will damage the
power amplier and/or the connected speaker cabinets.
NF-CONNECTION CORDS
Choosing high-quality balanced cables (two conductors for the audio signal plus separate shielding
mesh) with XLR-type connectors is recommended for LF-signal connection. Although connecting unbalanced cables to the power amplier inputs is possible as well, using balanced cables is always preferable. A great number of today’s audio appliances employ balanced outputs. With balanced cabling,
the shield connects all metal enclosure parts and therefore efciently eliminates the introduction of
external interference – mostly noise and hum.
XLR-type connector pin-assignment
XLR (male) XLR (female)
PARALLEL
The input connectors of channel A and channel B are electrically connected
in parallel when the selector switch is set to PARALLEL. However, individually
controlling the volume of both channels is still possible via the corresponding level
controls A and B.
DUAL
If the selector switch is set to DUAL, the audio signals of channels A and B are
independently amplied.
7
9
REAR PANEL
POWER AMPLIFIER OUTPUT CONNECTORS
Power amp output connection for the
two channels A (left) and B (right) is
provided via professional SPEAKON
connectors.
These offer an electrical and
mechanical secure connection which
complies to all security regulations.
It also allows the use of high quality
speaker cables with a diameter of
4 x 2.5 mm2. The EV accessory
assortment includes recommended
cables and connectors.
A plastic cover to prevent inadvertent erroneous connection protects the BRIDGED OUT connector.
Remove the cover only when actually operating the power amplier in Bridged-Mode.
WARNING:
The speaker output terminals are marked with a symbol “ ”, which signies that these
terminals present a shock hazard to the user.
BRIDGED MODE
With the BRIDGED-MODE switch being engaged, using the channel A input
for audio signal feed is mandatory, since input B provides no function. While
the amplier of channel A operates as usual. Additionally, the audio signal is
internally inverted and routed to the amplier of channel B. Both amps – A
and B – now work in push-pull operation to provide doubled output voltage at
the BRIDGED-OUT connector.
The regular output voltage of each amplier channel A + B is still present at the corresponding output
connectors CHANNEL A and CHANNEL B. However, using these signals is not recommendable because
of the aforementioned phase inversion. Operating the power amp in Bridged Mode with loads
of 2ohms connected is not allowable.
CAUTION: Operating the power amplier in Bridged-Mode may result in extremely high voltages
being present at the BRIDGED OUT connector. The connected loudspeaker systems have to be
designed for handling such high voltages. Please carefully read the power handling specications
as stated in the documentation of the according loudspeaker system and make sure to check
whether they are in compliance with the output capacity specications of the power amplier.
GROUND-LIFT SWITCH
The ground-lift switch allows eliminating noise loops. When operating the
power amplier in a 19“ rack-shelf system or cabinet together with other
equipment, setting the switch to its GROUNDED position is recommended.
When operating the power amplier together with appliances with differing
ground potentials, set the switch to its UNGROUNDED position
MAINS INPUT
Under normal circumstances, the mains fuse only blows in case of fault.
Replacing the fuse is only permissible for authorized service personnel
using a new fuse of the same type with identical amperage, voltage and
blow characteristics. The high-performance mains cord supplied with your
power amplier complies with applicable safety regulations, plus that its diameter corresponds to the
power amp’s power output capacity. Whenever possible make sure to use the supplied mains cord for
connecting the power amp to the mains network. Using a different mains cord with a smaller diameter
results in higher leakage, consequently reducing the amplier’s maximum power output capacity.
8
MAINS OPERATION & RESULTING
MAINS OPERATION & RESULTING POWER AMP TEMPERATURES
The following tables are useful in determining power supply and cabling requirements.
The power drawn from the mains network is converted into acoustic output to feed the connected
loudspeaker systems plus heat. The difference between drawn power and dispensed power is referred to
as leakage power or dissipation (Pd). The amount of heat resulting from power dissipation might remain
inside of a rack-shelf and needs to be diverted using appropriate measures. The following table is meant
as auxiliary means for calculating temperatures inside of rack-shelf systems/cabinets and the ventilation
efforts necessary.
The column “Pd” lists the leakage power in relation to different operational states. The column “BTU/hr”
shows the dispensed heat amount per hour.