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Congratulations! With buying a Electro-Voice CP-SERIES power amplifier you have chosen an appli-
ance that employs most advanced technology.
CP-Series power amps combine outstanding audio performance, highest reliability and operational
safety.
The audio performance of CP power amps are simply extraordinary. Optimised power supply units em-
ploying low-leakage toroidal transformers and the consistent use of Class-H technology provide exten-
sive headroom far above the stated nominal output. At the same time this contributes to a reduction in
weight and power dissipation.
The CP-Series is designed in Class-H technology, 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
– energy is used more efficiently. 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.
Electro-Voice CP-SERIES power amps have been designed to fulfil even the most demanding
requirements of touring applications. CP-Series amps are protected against thermal and electrical
overload, short circuit and the occurrence of HF/DC at the outputs. 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. An inrush current limiter prevents mains fuses from
blowing.
Mechanical construction and workmanship also comply with the highest precision manufacturing
standards. The rigid sheet steel chassis even resists the most wearing tour operation. Two three-speed
high performance fans (off/slow/fast) guarantee outstanding thermal stability at absolute low running
noise. The ventilation is directed front-to-rear allowing 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 retrofitting an internal analogue signal
processor board with x-over and filter 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 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 amplifier.
Please, make sure to carefully read all of it and mind the instructions.
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