Description - Electro-Voice Compact Precision CP3000S Owner's Manual

DESCRIPTION

Congratulations! With buying an Electro-Voice CP-Series power amplifi er you have chosen a state-of-
the-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
amplifi er with low weight of a pulsed power supply unit resulting in an improved performance-to-weight
ratio. Special attention had been given to high effi ciency 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 amplifi cation 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 effi ciently! 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 fulfi ll 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 retrofi tting an internal analogue
signal processor board with x-over and fi 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 amplifi er.
Please, make sure to carefully read all of it and mind the instructions.
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