Installation guide

46/50 Integrated Mixer Amplifier Setup And Installation Guide
CLOUD ELECTRONICS LIMITED
14 100V or 70V Line Operation
A four-channel line transformer module the CXL-4160 is available as an accessory. This gives the 46/50
up to four 100V or 70V, 40 watt outputs. This module is designed to fit inside the 46/50 chassis and may
be configured for 70 or 100V operation by means of wire links on the PCB. Unless specified otherwise,
the module is pre-configured for 100V output. Each of the four output transformers on the module is
connected to the main circuit board by independent cables. If a transformer output is not in use, its input
cable should be disconnected from the main circuit board. When a transformer is in use, the 65Hz high
pass filter for that transformer's zone must be activated by setting the appropriate jumper to the 'ON'
position. The jumpers are marked as follows:
J7: Zone 1
J9: Zone 2
J16: Zone 3
J18: Zone 4
If the filter is not switched on, high signal levels at low frequencies may result in the transformer
saturating and the amplifier's VI limiter operating.
When setting the jumper(s) please ensure that you:
• Remove the mains cable from the rear of the product before removing the top panel.
• Only reassemble the unit using screws identical to the original parts.
15 Remote Music Mute - Fire Alarm interface
In certain installations, such as licensed premises or retail outlets within a shopping mall, there may be
a local authority or fire service requirement to mute the music signals via a fire alarm control panel in an
alarm condition. The 46/50 provides the facility to do this using a fully isolated pair of relay contacts
which are triggered in an alarm condition. Relay contacts can be normally-open or normally-closed, but
the internal jumper J11 MUST be configured to match the relay.
• N/O: Normally Open means
the relay contacts close in an
alarm condition
• N/C: Normally Closed means
the relay contacts open in an
alarm condition
15
V6 070113
Location of 65Hz Filter Jumper for Zone 2
(The other 65Hz jumpers are placed similarly around the PCB)
Location of Jumper J11