Cloud Electronics CXV-225 - Manual (Page 5)

CXV-225 & CXV-425 User Manual v1.0 5
Applicable Models
This manual describes the installation and operation of the
following models:
Cloud CXV-225 2-channel amplifier –
•
2 x 250 W, 2U 19” rack unit
Cloud CXV-425 4-channel amplifier –
•
4 x 250 W, 3U 19” rack unit
Apart from the number of channels and the units’ physical
dimensions and power consumption figures, the two
models are otherwise identical for the practical purposes of
installation and operation.
General Description
The Cloud CXV-225 and CXV-425 are high power
(250 W/ch), multi-channel audio amplifiers intended for use
with high quality PA and background music systems in offices,
hotels, factories, leisure facilities and other commercial and
industrial premises.
They are designed to drive 100 V line speaker systems
directly, and have no low-impedance outputs. Low impedance
loudspeakers can only be connected to these amplifiers
with the use of an intermediate 100 V line transformer.
Loudspeakers designed for such ‘installed-sound’ applications
will normally include an integral transformer, typically with
selectable output power taps. If you have any doubt about
the suitability of this amplifier for the speaker system it is to
be connected to, please verify that the speakers are of the
100 V line type with the manufacturer.
Unlike traditional 100 V line amplifier designs, the CXV-225
and CXV-425 do not employ an output transformer. This
produces a considerable saving in weight and a significant
improvement in audio quality.
1
1
1
1
1
2
2
2
2
2
+
+
+
+
-
-
-
-
3
3
3
3
3
4
5
6
7
8
LEVEL
LEVEL
LEVEL
LEVEL
FREQ
FREQ
FREQ
FREQ
VCA
VCA
VCA
VCA
SPEAKER
EQ
SPEAKER
EQ
SPEAKER
EQ
SPEAKER
EQ
CLIP
LIMITER
CLIP
LIMITER
CLIP
LIMITER
CLIP
LIMITER
PROTECT
PROTECT
PROTECT
PROTECT
OUTPUTS
J4
J3
J2
J1
CHANNEL.
POWER
AMPLIFIER
POWER
AMPLIFIER
POWER
AMPLIFIER
POWER
AMPLIFIER
CXV-225
CXV-425
fig.1: CXV Series schematic diagram
Schematic Diagram