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CLOUD ZONER-AMPLIFIERS

Combining the traditional features of a mixer-amplifier with the functionality of a ‘zoner’ and the convenience of a multi-channel power-amplifier, these unusual products offer a one-box solution, to background/foreground music with announcements, in pubs, restaurants, retail premises and hotels. The comprehensive facilities, including connectivity to additional amplifiers and fire alarm systems, will appeal to installers in many other environments, whilst the user-friendly front panel will be understood easily by unskilled staff. Models with either two-zone with utility output or four-zone outputs are offered, either low-impedance or with 70/100V line options.

Please contact Technical Support for colour brochures.

36/50 - Two zone

This is a two-zone mixer, with three convection-cooled, 50W nominal amplifiers in a 2U rack-mounting enclosure. It has a single balanced microphone input and six unbalanced stereo line inputs which are each summed together to mono internally. All inputs may be fed to the two zones. The third ‘utility’ amplifier may be used to provide sound in peripheral areas such as toilets, foyers and corridors or it can be used as a slave to Zone 1, effectively doubling the power available to that zone. The microphone input has a wide gain-range, its own EQ, a 100Hz filter, optional priority over the music signals and access inputs for paging purposes. Music EQ is provided on each of the zone outputs.

The front panel has two sets of controls, one for each zone, consisting of a rotary switch to select one of the stereo inputs, an associated rotary volume knob and a microphone level control. There is a large, illuminated power switch. The rear panel has a single XLR for the microphone input, with gain and EQ controls, HF and LF. There is a permanent high-pass filter. A switch sets priority; when a microphone signal is detected the music signal will be reduced by 30dB, smoothly restoring to it’s previous level when the announcement ceases. Removable terminal-block connectors provide closing-contact remote-control access to zone 1, zone 2 and the utility amplifier for paging microphones. Six pairs of RCA(phono) sockets provide the line inputs, each pair having gain controls. Each of the two zones has a pair of EQ controls, HF and LF, and a removable terminal block connector for remote source selection and level control using optional RSL-6 control panels; this is enabled by a small push button, which defeats the respective controls on the front-panel. The microphone signals operate independently and are not controlled by the remote level controls (if fitted). The utility output has two controls for microphone and music level. A terminal-block connector provides for remote mute of the music signals to all zones for connection to a fire alarm system. Low-impedance loudspeaker output connections are provided by a terminal-block connector, as are the optional 70/100V speaker outputs. Power is connected to an IEC inlet. All controls on the rear panel are rotary and screwdriver-operated.

There are a number of internal jumpers. The microphone input can be configured to supply phantom power, input 6 can have audio priority over any other selected source in either or both zones. Remote control for each zone may be set to allow the use of a remote level control (RL-1) while still using the source select switch on the front panel. The music source to the utility output can be derived from the zone 1 programme (pre-fade) or directly from line one input. Alternatively the utility power amplifier can be used as a slave to zone one. In this mode the rear panel utility controls for the music and microphone levels are bypassed.

The 36/50 can be used as part of an automated sound system by controlling the music level and music source in zone one and zone two by an external 0-10V DC voltage. The microphone signals will remain fixed at the levels set by the rotary controls on the front panel.

Included accessories: Manual, AC power cable, mating terminal-block connectors.
Optional accessories: RSl-6, RL-1 remote control panels, CXL-3120 transformer module

CXL-3120 Transformer Module - 70/100V Line

The three-channel transformer module mounts within the chassis of the 36/50. Each output may be configured for 100V or 70V operation. High-pass filters at 65Hz protect the transformers and speakers connected to each output.

46/50 - Four zone

This is a four-zone mixer with four fan-cooled , 50W nominal amplifiers in a 2U rack-mounting enclosure. It has a two balanced microphone inputs and six unbalanced stereo line inputs which are each summed together to mono internally. All inputs may be fed to the four zones. The microphone inputs have wide gain-range, their own EQ, a 100Hz filter, optional priority over the music signals and access inputs for paging purposes. Music EQ is provided on each of the zone outputs. Microphone one has priority over microphone two, and both microphone signals have priority over the music sources. When a microphone signal is detected the music signal will be reduced by 30dB, restoring smoothly to it’s previous level when the announcement ceases. The microphone signals operate independently and are not controlled by the remote level controls, if fitted.

The front panel has four sets of controls, one for each zone, consisting of a rotary switch to select one of the stereo inputs, an associated rotary volume knob and two microphone level controls. Associated with the four sets of controls are treble and bass controls for the music fed to each zone, hidden behind a tamper-proof panel. There is a large, illuminated power switch. The rear panel has a two miniature terminal-block connectors for the microphone inputs, each have gain and EQ controls, HF and LF. There is a permanent high-pass filter. A removable terminal block-connector provides closing-contact remote-control access to each of the four zones for a paging microphone attached to the microphone one input. Six pairs of RCA(phono) sockets provide the line inputs, each pair having gain controls. A removable terminal block connector provides remote control for remote source selection and level control using optional RSL-6 control panels; this is enabled by a small push-button per zone, which defeats the respective controls on the front-panel. A pair of RCA(phono) connectors provide mono auxiliary outputs for the connection of a slave amplifier or induction-loop system to zones one and two. There is a facility port, in the shape of a 9-pin D-sub connector, to extend the capabilities of zone one by the connection of a remotely-located active control device such as the AE-1, DM-1 or LM-1. The facility port can also be used as a means to directly inject a signal into the zone via a line-level balanced input. A terminal-block connector provides for remote mute of the music signals to all zones for connection to a fire alarm system. Low-impedance loudspeaker output connections are provided by a terminal-block connector, as are the optional 70/100V speaker outputs. Power is connected to an IEC inlet. All controls on the rear panel are rotary and screwdriver-operated.

Internal jumpers are provided to change the configuration. The microphone inputs can be configured to supply phantom power, input 6 can have audio priority over any other selected source in zone one. Remote control for each zone may be set to allow the use of a remote level control (RL-1) while still using the source select switch on the front panel

Included accessories: Manual, AC power cable, mating terminal-block connectors.
Optional accessories: RSL-6, RL-1 remote controls and DM-1, LM-1 active modules, CXL-4160 100V-line transformer module, see below. A suitable multi-zone paging microphone system is available, see Cloud Digital Paging Microphones.

CXL-4160 Transformer Module - 100V Line

This four-channel, 100V-line output transformer module may be fitted internally, for feeding distributed systems. This has a shrouded screw terminal strip.

RSL-6, RL-1 - Remote controls

These are constructed to fit in UK standard single-gang back-box; they provide remote control functions for several Cloud products. Connections are terminal-blocks which may be wired to suitable Cloud mixers and mixer amplifiers using screened, two-core cable over a distance of up to 100m.
The RSL-6 provides six-way source selection and level control.
The RL-1 provides level control only.

AE-1, DM-1, LM-1 - Active Modules - Remote controls with remote input connectors

These fit in a UK standard single-gang back-box, and are connected to suitable Cloud mixers and mixer-amplifiers over a distance of up to 100 metres. Although the modules are active, they take power from the host device. Both have a microphone priority circuit which introduces a 30dB reduction of the music whenever the device detects a microphone signal.
The DM-1 is a two input microphone module which can be used in multiples when wired in a loop-through format. There are two XLR connectors, two level controls, common tamperproof HF and LF EQ controls and a switch to enable microphone priority. The connection requires a seven-core cable with overall screen.
The LM-1 has a line input, a balanced microphone input each with separate level controls. Two knobs control six-way source selection and level control respectively. A switch enables microphone priority. The module requires a 9-core cable with overall screen for connection.

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