Cloud CA Series Manuale d'installazione e d'uso - Pagina 7
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Overview
Overview
Introduction
The Cloud CA Series is a range of versatile multi-channel
audio power amplifiers of advanced design, able to drive low
impedance loudspeakers, or high impedance (100 V-line or
70 V-line) loudspeaker distribution systems directly. They
are ideal for sound reinforcement applications in the retail,
leisure, hospitality, commercial or industrial sectors.
Models CA2500, CA4250, CA6160 and CA8125 are capable
of delivering 1 kW of audio power. In high impedance (70/100
V-line) mode, this maximum power rating can be shared
between channels in an intelligent manner, allowing the
amplifiers to drive different types or numbers of loudspeakers
in the various areas of a building or venue with maximum
economy. Model CA2250 can deliver a maximum of 500 W
of audio power, which may be similarly shared between its
two channels.
The range comprises five models which, with the exception
of Model CA2250, differ only in the number of channels. The
figure in the "POWER" column below represents the power
that can be delivered to a four or eight ohm load when all
channels are equally driven:
MODEL
CHANNELS
CA2250
CA2500
CA4250
CA6160
CA8125
Particular design attention has been paid to the amplifiers'
energy efficiency. The Class D output stages dispense with
line output transformers, and consequently offer great
savings in weight and size over earlier designs. An automatic,
two-stage power-down feature (APD) mutes the amplifier if
no input signal has been detected for 15 minutes, and then
enters an ultra-low-current standby mode if no input signal
has been detected for 25 minutes; in this latter mode the
power consumption is less than 2.5 W. The amplifiers also
include a remote standby/wake up function, enabling them
to be placed into standby mode - and subsequently powered-
up again - by a simple external contact closure. The APD
feature can be disabled by a rear panel DIP switch.
Safety features of the design include output DC detection,
overcurrent protection, and thermal monitoring. A switch-
on delay provides loudspeaker protection at power-up. All
models use variable–speed forced-air cooling.
POWER
2
2 X 250 W
2
2 X 500 W
4
4 X 250 W
6
6 X 160 W
8
8 x 125 W
Applicable Models
This Installation Guide describes the installation and operation
of the following models:
•
Cloud CA2250: 2-channel amplifier, low impedance and
70/100 V-line outputs, total rating 500 W
•
Cloud CA2500: 2-channel amplifier, low impedance and
70/100 V-line outputs, total rating 1 kW
•
Cloud CA4250: 4-channel amplifier, low impedance and
70/100 V-line outputs, total rating 1 kW
•
Cloud CA6160: 6-channel amplifier, low impedance and
70/100 V-line outputs, total rating 1 kW
•
Cloud CA8125: 8-channel amplifier, low impedance and
70/100 V-line outputs, total rating 1 kW
Wherever the term "CA Series amplifier" or simply "amplifier"
is used in this manual, it may be assumed that the information
is applicable to all the above models. Where information is
specific to one (or more) models only, clear reference to the
relevant model type(s) will be made.
NOTE: Cloud amplifier models CV2500, CV4250 and
CV8125 are NOT covered by this Guide.
C l e a r l y b e t t e r s o u n d
CA Series Installation & User Guide v1.0
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