46-120 Installation and User Guide V1.18
Key features
•Mixer amplier for four zones
•Built-in digital music player supports MP3 and WMA les
from USB memory sticks or SD cards at all standard data
rates/sample frequencies (MEDIA versions only)
•Six (unbalanced) stereo line inputs with individual gain
trim controls
•Front panel user controls for music source, music level
and level of each microphone, for each zone, plus preset
controls for HF/LF EQ
•Two balanced mic inputs; 15 V phantom power selectable
on either or both
•MIC 1 input can be congured as telephone system
interface
•Contact closure access port for paging zone selection –
most OEM paging systems supported
•Sensitivity and HF/LF EQ adjustment for mic inputs (rear
panel)
•Selectable VOX-triggered mic-over-music priority
•Selectable LINE 6 priority in Zone 1, with choice of
release times
•4 x 120 W power output (4 ohms)
•Transformer-isolated auxiliary output with independent
mic and music level control - for use with telephone
MOH systems
•Aux output source selection (internal jumper) – xed
source or mix of Mic 1 and Zone 1 music source
•Zones 1 & 2 auxiliary line level outputs (pre-power
amplier), for connection of additional external ampliers
•Optional CXL-46T 70/100 V transformer can be tted
internally to any or all zone outputs (pre-tted to all
channels in T versions)
•Selectable 65 Hz high-pass lter per-output (for use with
70/100 V-line systems)
•Music Mute control input (N/O or N/C) for interface to
emergency system
•Zone 1 Facility Port (RJ45) for connection of optional
LM-2 mic/line remote input/control modules via Cat 5
•Compatible with standard Cloud remote control plates:
RL Series (music level) and RSL Series (music level and
source selection), per-zone
•Optional EQ cards available to suit various popular
installation loudspeakers may be tted in any or all
outputs
•Optional CDI-46 digital interface card with Cloud
Digital Paging System port for direct interface to PM
Series paging microphones, RS-232 serial port and RJ45
Ethernet port
•Energy-saving auto power-down function, Ethernet-
controllable (when CDI-46 is tted)
•Remote standby mode control by contact closure
•Variable–speed fan cooling
•2U 19” rack-mounting unit
Optional system components
The following components may form part of the audio system
and may be ordered separately if required. They may also be
retrotted to a system at a later time. Separate datasheets
are available for each of the individual components; download
them at www.cloud.co.uk.
Note that full installation and operation instructions are
supplied with each optional component.
CDI-46 digital interface
The CDI-46 card is an optional accessory which gives the
46-120 additional interface and control capabilities. The
CDI-46 is equipped with both Ethernet and RS-232 ports,
allowing the mixing amplier’s primary functions to be
controlled from external systems (Crestron, AMX, etc.) using
either protocol. The card also acts as an Ethernet-to-serial
bridge, converting Ethernet commands to other equipment
into RS-232 data. See page 18 and page page 24 for more
details.
The CDI-46 is also tted with a Cloud Digital Paging interface
(the CDPM/PM INPUT). This provides the simplest method
of connecting Cloud PM Series Paging Microphones, requiring
only a single standard Cat 5 cable. See page 18 for more
details.
LM-2 remote active modules
MIC LEVEL
1
2345
6
MUSIC LEVEL
LINE INPUT
MIC INPUT LM-2
MIC
PRIORITY
1
4
5
2
3
67
9
10
8
0
1
4
5
2
3
67
9
10
8
0
1
4
5
2
3
67
9
10
8
0
The LM-2 is an active input module which allows a microphone
and a stereo line input in a remote location to be connected
to the 46-120. The faceplate has both phonos and a 3.5 mm
jack socket for connection of the line input, and provides a
convenient access point for the connection of a DJ mixer,
laptop, MP3 player or similar. Mic and line inputs have separate
level controls. A MIC PRIORITY button activates the Mixer
